Petitioners Brief — United States, Petitioner v. Dzhokhar A. Tsarnaev

Supreme Court briefJun 14, 2021

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No. 20-443

In the Supreme Court of the United States

UNITED STATES OF AMERICA, PETITIONER

v.

DZHOKHAR A. TSARNAEV

ON WRIT OF CERTIORARI

TO THE UNITED STATES COURT OF APPEALS

FOR THE FIRST CIRCUIT

BRIEF FOR THE UNITED STATES

ELIZABETH B. PRELOGAR

Acting Solicitor General

Counsel of Record

JOHN C. DEMERS

Assistant Attorney General

NICHOLAS L. MCQUAID

Acting Assistant Attorney

General

ERIC J. FEIGIN

Deputy Solicitor General

CHRISTOPHER G. MICHEL

MICHAEL R. HUSTON

Assistants to the Solicitor

General

WILLIAM A. GLASER

JOSEPH F. PALMER

Attorneys

Department of Justice

Washington, D.C. 20530-0001

SupremeCtBriefs@usdoj.gov

(202) 514-2217

QUESTIONS PRESENTED

1. Whether the court of appeals erred in concluding

that respondent’s capital sentences must be vacated on

the ground that the district court, during its 21-day voir

dire, did not ask each prospective juror for a specific

accounting of the pretrial media coverage that he or she

had read, heard, or seen about respondent’s case.

2. Whether the district court committed reversible

error at the penalty phase of respondent’s trial by excluding evidence that respondent’s older brother was

allegedly involved in different crimes two years before

the offenses for which respondent was convicted.

(I)

TABLE OF CONTENTS

Page

Opinions below .............................................................................. 1

Jurisdiction .................................................................................... 2

Statutory provisions involved ...................................................... 2

Statement:

A. Respondent’s crimes ................................................. 2

B. Pretrial proceedings ................................................. 6

1. Venue challenges and jury selection................. 7

2. Dispute over Waltham evidence ..................... 11

C. Trial and sentencing ............................................... 13

D. Court of appeals’ decision ....................................... 15

Summary of argument ............................................................... 16

Argument:

I. The court of appeals erred in applying an inflexible

voir dire rule to invalidate respondent’s capital

sentences ........................................................................ 19

A. The district court’s extensive jury-selection

procedures appropriately and effectively

ensured an impartial jury .................................... 20

1. A juror can be impartial even if he or she

has seen, and formed opinions based on,

pretrial publicity ............................................... 21

2. The district court’s voir dire procedures

here were appropriately tailored to

produce an impartial jury ................................ 24

B. The court of appeals erred in relying on a

novel, inflexible, and unsupported voir dire

rule to invalidate respondent’s capital

sentences .................................................................. 29

II. The court of appeals erred in alternatively

vacating respondent’s capital sentences based on

his brother’s alleged involvement in different

unsolved crimes.............................................................. 38

A. The district court did not abuse its discretion

in declining to admit the Waltham evidence ........ 39

(III)

IV

Table of Contents—Continued:

Page

B. Any error in the district court’s handling of

the Waltham issue was harmless beyond a

reasonable doubt ..................................................... 45

Conclusion ................................................................................... 48

Appendix — Statutory provisions ........................................... 1a

TABLE OF AUTHORITIES

Cases:

Aldridge v. United States, 283 U.S. 308 (1931) .................. 33

Beck v. Washington, 369 U.S. 541 (1962) ............................ 36

Brady v. Maryland, 373 U.S. 83 (1963) .............................. 38

Eddings v. Oklahoma, 455 U.S. 104 (1982) ......................... 39

Franks v. Delaware, 438 U.S. 154 (1978) ............................ 44

Irvin v. Dowd, 366 U.S. 717 (1961) ................................ 21, 22

Jones v. United States, 527 U.S. 373 (1999) ........................ 31

McNabb v. United States, 318 U.S. 332 (1943) ................... 29

Mu’Min v. Virginia, 500 U.S. 415 (1991) ................... passim

Patriarca v. United States,

402 F.2d 314 (1st Cir. 1968),

cert. denied, 393 U.S. 1022 (1969) ....................... 15, 29, 34

Patton v. Yount, 467 U.S. 1025 (1984) ............................... 35

Pena-Rodriguez v. Colorado,

137 S. Ct. 855 (2017) ..................................................... 23, 33

Rideau v. Louisiana, 373 U.S. 723 (1963) .......................... 35

Rosales-Lopez v. United States,

451 U.S. 182 (1981)............................................ 22, 23, 33, 36

Reynolds v. United States, 98 U.S. 145 (1879) ................... 21

Shannon v. United States, 512 U.S. 573 (1994) .................. 36

Skilling v. United States, 561 U.S. 358 (2010) ........... passim

Skipper v. South Carolina, 476 U.S. 1 (1986) ..................... 45

V

Cases—Continued:

Page

Sprint/United Mgmt. Co. v. Mendelsohn,

552 U.S. 379 (2008).............................................................. 40

Turner v. Murray, 476 U.S. 28 (1986) ................................. 23

United States v. Burr,

25 F. Cas. 49 (C.C.D. Va. 1807) ......................................... 21

United States v. Hasting, 461 U.S. 499 (1983) ................... 31

United States v. Lujan, 603 F.3d 850 (10th Cir.

2010), cert. denied, 562 U.S. 1303 (2011) .......................... 39

United States v. Mechanik, 475 U.S. 66 (1986) .................. 37

United States v. Mitchell, 502 F.3d 931 (9th Cir.

2007), cert. denied, 553 U.S. 1094 (2008) .......................... 40

United States v. Payner, 447 U.S. 727 (1980) ............... 31, 32

United States v. Sampson, 486 F.3d 13 (1st Cir.

2007), cert. denied, 553 U.S. 1035 (2008) .................... 39, 40

United States v. Umaña, 750 F.3d 320 (4th Cir.

2014), cert. denied, 576 U.S. 1035 (2015) .......................... 40

United States v. Wood, 299 U.S. 123 (1936) ........................ 32

Constitution, statutes, and rule:

U.S. Const. Amend. VI.......................................................... 21

Federal Death Penalty Act of 1994,

18 U.S.C. 3591 et seq. .......................................................... 39

18 U.S.C. 3593(c) ........................................... 16, 39, 43, 44

18 U.S.C. 3595(c)(2) ......................................................... 45

18 U.S.C. 844(i) ........................................................................ 7

18 U.S.C. 924(c) (2012) ...................................................... 7, 15

18 U.S.C. 924( j) (2012) ............................................................ 7

18 U.S.C. 2332a ........................................................................ 6

18 U.S.C. 2332f ......................................................................... 6

Fed. R. Evid. 403 ................................................................... 39

In the Supreme Court of the United States

No. 20-443

UNITED STATES OF AMERICA, PETITIONER

v.

DZHOKHAR A. TSARNAEV

ON WRIT OF CERTIORARI

TO THE UNITED STATES COURT OF APPEALS

FOR THE FIRST CIRCUIT

BRIEF FOR THE UNITED STATES

OPINIONS BELOW

The opinion of the court of appeals (Pet. App. 1a188a) is reported at 968 F.3d 24. The court’s order

denying respondent’s first petition for a writ of mandamus (Pet. App. 216a-220a) is reported at 775 F.3d 457.

The court’s order denying respondent’s second petition

for a writ of mandamus (Pet. App. 230a-302a) is reported at 780 F.3d 14. The order of the district court

denying respondent’s motion for a new trial or judgment of acquittal (Pet. App. 303a-349a) is reported at

157 F. Supp. 3d 57. The court’s orders granting the government’s motion in limine (J.A. 649-651) and denying

respondent’s requests for production of evidence (J.A.

652-654, 656-659) are unreported. The court’s orders

denying respondent’s motions for a change of venue

(Pet. App. 190a-201a, 202a-215a, 221a-229a) are not

published in the Federal Supplement but are available

(1)

2

at 2015 WL 505776, 2015 WL 45879, and 2014 WL

4823882.

JURISDICTION

The judgment of the court of appeals was entered on

July 31, 2020. The petition for a writ of certiorari was

filed on October 6, 2020, and granted on March 22, 2021.

The jurisdiction of this Court rests on 28 U.S.C. 1254(1).

STATUTORY PROVISIONS INVOLVED

Pertinent statutory provisions are reprinted in the

appendix to this brief. App., infra, 1a-3a.

STATEMENT

Following a jury trial in the United States District

Court for the District of Massachusetts, respondent

was convicted of 30 offenses for the 2013 bombing of the

Boston Marathon—“one of the worst” acts of terrorism

on United States soil since September 11, 2001. Pet.

App. 1a. On the jury’s recommendation, the district

court imposed capital sentences for six counts and imposed life-imprisonment sentences for multiple additional counts. Id. at 18a. The court of appeals affirmed

27 of respondent’s convictions, reversed three convictions, vacated his capital sentences, and remanded for a

new penalty proceeding. Id. at 1a-188a.

A. Respondent’s Crimes

1. Respondent is a “[r]adical jihadist[ ] bent on killing Americans.” Pet. App. 1a; see J.A. 168-170, 230-234.

In late 2012 and early 2013, he told a friend that he

wanted to “bring justice for [his] people” and attain the

“[h]ighest level of Jannah [paradise],” which his friend

understood to mean that respondent wanted to wage

jihad. J.A. 117-120. He expressed the same desire to

followers on Twitter, whom he encouraged to view al

Qaeda lectures, and he publicly prayed for “victory over

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kufr [infidels].” J.A. 121-123. The preceding year,

while in college in Massachusetts, respondent had

accessed radical propaganda including an electronic

copy of an al Qaeda publication with exhortations from

al Qaeda leaders to commit terrorist attacks in “the

West” and instructions for making bombs to “damage[ ]

the enemy.” J.A. 109, 892; see J.A. 99-112, 880-899.

On April 15, 2013, respondent and his brother

Tamerlan—a fellow jihadist—walked to the crowded

finish-line area of the Boston Marathon with backpacks

containing homemade pressure-cooker shrapnel bombs

filled with BBs and nails. J.A. 162; see J.A. 97-98 (photos). They separated, and each of them found a spot

packed with spectators to place his bomb. J.A. 162-163.

Respondent selected the sidewalk near the crowded

outdoor patio at the Forum restaurant, just behind several children watching the race. J.A. 163; see J.A. 124

(photo of respondent in backward white hat taking

position behind the children); Exhibit 22, at 0:01-7:15

(video). 1 The brothers spoke on the phone, and about 20

seconds later, Tamerlan’s bomb exploded. J.A. 164. Respondent then moved away from his own bomb, which

exploded a few seconds later. Ibid.; see Exhibit 22, at

6:45-7:55; Exhibit 1634C; Exhibit 5 (videos).

The bombs caused devastating injuries that left the

street with “a ravaged, combat-zone look.” Pet. App.

4a. “Blood and body parts were everywhere,” littered

among “BBs, nails, metal scraps, and glass fragments.”

Id. at 4a-5a. “The smell of smoke and burnt flesh filled

the air,” and “screams of panic and pain echoed

throughout the site.” Id. at 5a; see J.A. 207-212; J.A.

Pertinent video exhibits in the record are available on a multimedia drive that the government has submitted to the Clerk’s Office. Some of the cited photos and videos contain graphic content.

1

4

125-142 (photos); Exhibits 11C and 14 (videos of aftermath of first bomb); Exhibit 23, at 6:30 (video of aftermath of respondent’s bomb).

The first bomb “completely mutilated” the legs of

race spectator Krystle Campbell, causing her to bleed

to death on the sidewalk while her friend attempted to

comfort her. Pet. App. 5a (brackets omitted). Respondent’s bomb “filleted” the leg of Boston University student Lingzi Lu “open down to the bone.” Ibid. People

nearby worked frantically to save Lu’s life and pleaded

with her to “[s]tay strong,” but she died within minutes.

Id. at 5a-6a. Respondent’s bomb “also sent BBs and

nails tearing through” the body of eight-year-old Martin Richard, “cutting his spinal cord, pancreas, liver,

kidney, spleen, large intestine, and abdominal aorta,

and nearly severing his left arm.” Id. at 6a. The boy

“bled to death on the sidewalk—with his mother leaning

over him, trying to will him to live.” Ibid.

The bombs also “consigned hundreds of others to a

lifetime of unimaginable suffering.” Pet. App. 6a.

Among many other severe injuries, victims lost limbs,

their sight, or their hearing. Ibid.; see Gov’t C.A. Br.

21-25. Respondent’s bomb alone caused eight people—

including Martin Richard’s six-year-old sister—to lose

their legs. Gov’t C.A. Br. 22. His bomb also gashed the

stomach of Lingzi Lu’s friend so severely that she had

“to hold her insides in.” Pet. App. 5a.

2. Back at college the next day, respondent again

accessed the electronic al Qaeda magazine with bombmaking instructions. J.A. 103. That evening, he worked

out at the gym with a friend and tweeted, “I’m a stress

free kind of guy.” J.A. 145; see Exhibits 1181-1183 (videos).

5

Three days later, the Federal Bureau of Investigation (FBI) released surveillance-camera images of the

bombing suspects and asked the public to help find

them. Pet. App. 7a. When a friend recognized respondent as one of the bombers and messaged him, he replied,

“Better not text me my friend” and “Lol [laughing out

loud].” J.A. 146.

That night, respondent met up with Tamerlan again

and they loaded pipe bombs, a handgun, and another

shrapnel bomb into Tamerlan’s car. Pet. App. 7a. The

brothers drove past the Massachusetts Institute of

Technology, where they saw a campus police squad car.

Ibid. They approached together from behind and shot

Officer Sean Collier in the head at point-blank range

using respondent’s pistol. Ibid.; Exhibits 723-724 (videos). They tried to steal Officer Collier’s firearm, but

could not remove it. Pet. App. 7a-8a. After that, the

brothers carjacked graduate student Dun Meng at gunpoint, stole $800 from Meng’s bank account at an ATM,

and drove to a gas station. Id. at 8a; Exhibit 756 (video).

While respondent shopped for snacks, Meng made a

desperate escape, and the brothers made off in Meng’s

SUV. Pet. App. 8a; Exhibits 748, 752 (videos).

Using the tracking system in the SUV, police located

the brothers in Watertown, Massachusetts. Pet. App.

9a. When officers started following them along a residential street, the brothers exited the SUV and

attacked the officers. Ibid. Tamerlan began shooting

while respondent threw bombs—some of which exploded. Ibid. When Tamerlan’s gun stopped firing, he

charged at the officers, who wrestled him to the ground.

Ibid. Meanwhile, respondent got back into Meng’s SUV

and sped toward the officers and Tamerlan. J.A. 180;

J.A. 147-149 (photos). The officers managed to get

6

themselves, but not Tamerlan, out of respondent’s path.

J.A. 180. Respondent ran over Tamerlan, who died

a few hours later. Ibid. The shootout caused lifethreatening injuries to one of the officers. J.A. 180-181.

Respondent abandoned the SUV about two blocks

away, then fled a short distance on foot and hid in a covered boat behind a home. Pet. App. 9a; see J.A. 150

(photo). While inside the boat, respondent carved the

words “Stop killing our innocent people, and we will

stop.” J.A. 168; see J.A. 151 (photo). He also used a

pencil to write out a manifesto to “shed some light on

[his] actions.” J.A. 203; see J.A. 152-154 (photos). He

stated that while “killing innocent people” is “forbidden

in Islam” and he did not “like” it, “due to said [obscured]

it is allowed.” J.A. 159. He accused “[t]he U.S. government [of ] killing our innocent civilians” and stated that

he could not “stand to see such evil go unpunished.”

J.A. 204. He warned that “the [M]ujahideen” “ha[d]

awoken,” and that “you are fighting men who look into

the barrel of your gun and see heaven.” Ibid. He also

wrote that he was “jealous” of Tamerlan’s martyrdom

and “ask[ed] Allah to make [him] a” martyr as well. J.A.

203-204.

The homeowner discovered respondent the next day.

Pet. App. 10a. Respondent ignored law-enforcement

officers’ “repeated requests to surrender,” but was

eventually forced out of the boat and captured. Ibid.

B. Pretrial Proceedings

In June 2013, a federal grand jury in the District of

Massachusetts indicted respondent on 30 counts, including using a weapon of mass destruction resulting in

death, in violation of 18 U.S.C. 2332a; bombing a place

of public use resulting in death, in violation of 18 U.S.C.

2332f; malicious destruction of property resulting in

7

death, in violation of 18 U.S.C. 844(i); and using a firearm during and in relation to a crime of violence resulting in murder, in violation of 18 U.S.C. 924(c) and ( j)

(2012). Pet. App. 12a-15a; see id. at 12a n.9 (detailing

all charges). At the direction of then-Attorney General

Eric Holder, the United States sought capital sentences

on the 17 capital counts. Id. at 15a.

1. Venue challenges and jury selection

a. One year into pretrial proceedings, respondent

filed a motion for a change of venue based on pretrial

publicity. Pet. App. 190a-205a. The district court denied the motion. Id. at 190a-201a. The court recognized

that “[m]edia coverage of this case * * * has been extensive,” but emphasized that “prominence does not

necessarily produce prejudice, and juror impartiality

does not require ignorance.” Id. at 193a (quoting Skilling v. United States, 561 U.S. 358, 360-361 (2010)).

After reviewing the media coverage in detail, along with

expert reports on the bias that it would allegedly create,

the court determined that the coverage did not contain

the kind of “blatantly prejudicial information that prospective jurors could not reasonably be expected to

cabin or ignore.” Id. at 194a.

Respondent renewed his venue-change motion a few

months later, and the district court again denied it. Pet.

App. 205a. The court observed, inter alia, that the upcoming jury-selection process was “designed to screen

out jurors who would be unable to conscientiously perform [an] impartial and fair assessment of the evidence

at trial,” including those who “have been affected in the

ways in which [respondent] is concerned.” Id. at 213a.

Respondent then sought venue transfer by asking

the court of appeals for a writ of mandamus. Pet. App.

216a-217a. After “a careful and painstaking review,”

8

the court found that respondent had “fall[en] far short

of meeting the requirements for” that relief. Id. at 217a.

b. Jury selection began in early January 2015. Pet.

App. 27a. The district court summoned an expanded

pool of more than 1300 prospective jurors and directed

them to complete a 100-question questionnaire, developed in conjunction with the parties, soliciting information about their backgrounds, exposure to pretrial

publicity, views on the death penalty, and opinions (if

any) about the case. Id. at 27a-28a, 213a; see id. at 350a383a (questionnaire).

Among other things, prospective jurors were required to list their “primary source[s] of news,” with

follow-up questions about print, radio, television, and

internet sources. Pet. App. 371a. They also disclosed

whether they had seen a “little,” a “moderate amount,”

or “[a] lot” of publicity about the case. Id. at 372a.

Question 77 specifically asked prospective jurors

whether, “[a]s a result of what [they] ha[d] seen or read

in the news media,” they had “formed an opinion” that

respondent was “guilty” or “not guilty” and “should” or

“should not” receive the death penalty. Id. at 373a.

Question 77 also asked whether, if prospective jurors

had formed such an opinion, they could “set aside [that]

opinion and base [their] decision about guilt and punishment solely on the evidence that will be presented * * *

in court.” Ibid.

The district court declined respondent’s request to

include a question inviting every prospective juror to

narrate “what * * * [he or she] kn[e]w about the facts

of th[e] case.” J.A. 475. The court explained that such

a question would be “unfocused” and produce “unmanageable data.” J.A. 480-481; see J.A. 485-486. The court

also emphasized that each juror who made it through

9

the initial screen of the questionnaire would be subject

to further examination. J.A. 480-483.

c. After reviewing the completed questionnaires,

the district court excused many prospective jurors on

the agreement of the parties or for hardship, and called

back 256 prospective jurors from the first half of the

jury pool for individual voir dire. Pet. App. 30a; see C.A.

App. 3866, 3894. The voir dire occupied 21 court days

over the ensuing month and a half. Pet. App. 30a. In

“face-to-face, give-and-take” exchanges with each prospective juror, the court and the parties followed up on

the questionnaire responses, including by questioning

prospective jurors about their ability to “put a prior

opinion aside” and “decide the case only on the trial

evidence.” Id. at 226a-227a; see C.A. App. 260-3920 (full

voir dire transcript); J.A. 284-471 (voir dire transcripts

for each seated juror).

The district court declined requests by respondent,

which he renewed multiple times during the voir dire,

for scripted questions asking each prospective juror

whether he or she had “heard or read * * * anything

[about] this case” and “[w]hat st[ood] out in [his or her]

mind from everything” he or she might have “heard,

read or seen about the Boston Marathon bombing and

the events that followed it.” J.A. 489; see J.A. 491-494,

496-498, 500-503. The court emphasized the importance

of an individualized approach to questioning, explaining

that invariantly asking such questions to all jurors could

“be counter-productive,” because “[e]very juror is different” and “has to be * * * questioned in a way that is

appropriate to the juror’s * * * answers.” J.A. 498. In

addition, the court assessed the initial sessions of voir

dire, which had been conducted without such scripted

questioning, to have been “successful,” and decided that

10

it should maintain “the course we’ve been following

* * * subject to adjustment as necessary for each witness.” J.A. 502-503.

In the individualized questioning, the district court

allowed the defense to ask numerous prospective

jurors—including several ultimately seated on the

jury—the proposed questions, or similar questions,

about what they had seen or heard and what stood out

in their minds. See, e.g., J.A. 331; C.A. App. 674-676,

729, 942, 1044, 1385, 1502, 1520, 1810-1811, 2559; see

also J.A. 374, 410. Over the course of the voir dire, the

court dismissed numerous prospective jurors for cause,

either sua sponte or at a party’s request. See Pet. App.

35a. None of those for-cause dismissals was specifically

premised on a prospective juror’s responses to the

pretrial-publicity questions that respondent had proposed to ask as a blanket matter.

d. Three weeks into jury selection, respondent filed

a third venue-change motion, which the district court

found to have “even less” merit than the previous ones.

Pet. App. 221a, 223a. The court observed that prospective jurors’ responses to the questionnaire showed them

to be “substantially” less unfavorably disposed than

people surveyed in respondent’s proposed alternative

venues. Id. at 225a n.4. And the court explained that

“the careful inquiry that [it] and counsel are making

into the suitability of prospective jurors” through voir

dire was “successfully identifying [those] capable of

serving as fair and impartial jurors.” Id. at 223a.

Respondent filed a second mandamus petition seeking a venue change, which the court of appeals denied.

Pet. App. 230a. The court acknowledged the “significant media attention” that respondent and the bombing

had received, but emphasized that prospective jurors’

11

“[k]nowledge” of underlying events “does not equate to

disqualifying prejudice.” Id. at 231a. The court noted

that the coverage consisted mostly of “factual news media accounts” and that respondent’s “own statistics reveal that hundreds of members of the venire have not

formed an opinion that he is guilty.” Id. at 242a-243a.

After “review[ing] the entire voir dire,” the court of

appeals found it “thorough and appropriately calibrated

to expose bias, ignorance, and prevarication.” Pet. App.

250a. The court emphasized that the district court had

“taken ample time to carefully differentiate between

those individual jurors who have been exposed to publicity but are able to put that exposure aside and those

who have developed an opinion they cannot put aside.”

Id. at 253a. And the court of appeals found that the district court had identified a slate of “provisionally qualified” jurors “capable of providing [respondent] with a

fair trial.” Id. at 240a.

e. The district court completed jury selection by

allowing the parties to each exercise 23 peremptory

challenges to the provisionally qualified jurors, resulting in a 12-member jury with six alternates. Pet. App.

41a. All of the jurors affirmed “that they could adjudicate on the evidence as opposed to personal biases or

preconceived notions.” Ibid.

2. Dispute over Waltham evidence

Before trial, respondent sought to compel discovery

about an unsolved triple murder that had occurred in

Waltham, Massachusetts, on September 11, 2011. Pet.

App. 64a-66a. Investigators came to suspect Tamerlan’s friend Ibragim Todashev, whom they had interviewed during the marathon-bombing investigation, of

involvement in those separate murders. Id. at 64a-65a.

12

Todashev initially denied involvement, but when

agents challenged his story, he eventually offered to

provide information “if he could get a deal for cooperating.” Pet. App. 65a; see J.A. 900-918 (FBI “302” report

on final Todashev interview); J.A. 919-967 (interview

transcript). Todashev then admitted to participating in

the Waltham crime, but qualified his admission by

blaming Tamerlan for the murders. Pet. App. 65a-66a.

Todashev claimed that he had agreed to help Tamerlan rob drug dealers and had participated in holding

them at gunpoint and binding them. J.A. 912-914. According to Todashev, however, it was Tamerlan who

made a spur-of-the-moment decision to kill the victims

to avoid leaving any witnesses. See J.A. 911-916, 939941, 947. Todashev claimed that he had objected to the

killing and that had Tamerlan allowed him to wait outside while Tamerlan alone slit the victims’ throats. J.A.

915-916, 945-949. Todashev began writing out a confession, but then suddenly attacked the agents, who shot

and killed him. J.A. 918.

The government informed defense counsel of “the

fact and general substance of Todashev’s statements.”

J.A. 658. The government also disclosed a proffer by

respondent’s friend Dias Kadyrbavev (through his attorney) that respondent had told Kadyrbavev that Tamerlan had been involved in the Waltham murders, and

that respondent had described those murders as “jihad.” Pet. App. 67a; see J.A. 583-585. The government

declined, however, to turn over the FBI “302” reports

and recordings from Todashev’s interviews, citing the

law-enforcement privilege. Pet. App. 66a-67a. After inspecting some of those materials in camera, the district

court denied respondent’s motions to compel production. J.A. 652-654, 655-659. The court also granted the

13

government’s motion in limine to exclude evidence

about the Waltham murders from the penalty phase of

the trial. J.A. 649-651. The court found “insufficient

evidence to describe what participation Tamerlan may

have had” in the Waltham murders, observing that the

evidence made it just as plausible “that Todashev was

the bad guy and Tamerlan was the minor actor.” J.A.

650. The court explained that, because the jury would

have “no way of telling who played what role, if they

played roles,” the Waltham evidence “would be confusing to the jury and a waste of time * * * without any

probative value.” Ibid.

C. Trial And Sentencing

The guilt phase of respondent’s trial began in March

2015 and lasted 17 days. J.A. 52-63. Defense counsel’s

opening statement acknowledged that respondent had

committed virtually all of the acts charged and asserted

that respondent would not “attempt to sidestep” his “responsibility for his actions.” J.A. 191. The defense

claimed, however, that respondent had “followed” his

brother’s “influence” in committing the crimes. J.A.

192-194. The government then presented “overwhelming evidence” of respondent’s culpability, including 92

witnesses and more than 1200 exhibits. Pet. App. 324a;

see id. at 17a; see also J.A. 161-188 (government’s opening statement); J.A. 199-240 (government’s closing

statement). The jury “thoughtfully deliberated” for

more than two days, asked several questions about certain charges, and found respondent guilty on all 30

counts. Id. at 327a.

A 12-day penalty-phase proceeding followed. See

J.A. 65-75. The government called 17 witnesses, and respondent called 46. See Pet. App. 17a-18a. Victims’

family members testified about the character of the

14

people that respondent had killed and the depth of their

own grief. See, e.g., J.A. 884-885 (Krystle Campbell’s

brother); J.A. 888 (Lingzi Lu’s aunt). Several surviving

victims recounted their trauma in detail, including their

“reactions to facing death,” terror at the “uncertainty

[of ] what had happened to other family members,”

“feelings of helplessness watching [an] injured child or

partner suffer,” and “the long-term implications of

becoming an amputee.” Pet. App. 99a-100a (brackets

omitted); see J.A. 795-820 (government’s penalty-phase

closing statement).

After deliberating, the jury determined that capital

punishment was appropriate for six of the 17 capital

counts, corresponding to respondent’s murder of Martin Richard and Lingzi Lu with his own bomb. Pet. App.

18a. The district court imposed the death penalty on

those six counts. Ibid. The jury recommended, and the

court imposed, life imprisonment on the other capital

counts, which included charges based on the murders of

Krystle Campbell and Sean Collier. Ibid. The court imposed a number of concurrent and consecutive terms on

the remaining counts. Ibid.

The district court denied a post-trial motion for acquittal or a new trial. Pet. App. 303a-349a. Addressing

a renewed venue argument, the court explained that the

jury’s conduct “suggest[s] patient and careful deliberation,” “not [] a jury inflamed by prejudice, eager to return a verdict adverse to the defendant, even when the

defendant had effectively conceded” his guilt. Id. at

328a (emphasis omitted). The court also observed that

the “discriminating nature of the” penalty-phase verdict, in which the jury “distinguished [respondent] from

his brother,” provided “convincing evidence that this

15

was not a jury impelled by gross prejudice or even reductive simplicity, but rather a group of intelligent, conscientious citizens doing their solemn duty.” Id. at 329a.

D. Court of Appeals’ Decision

The court of appeals affirmed respondent’s convictions, with the exception of three for using a firearm

during a crime of violence under 18 U.S.C. 924(c) (2012),

which the court viewed as legally deficient. Pet. App.

134a-152a. But the court vacated respondent’s capital

sentences and remanded for a new sentencing proceeding. Id. at 44a-60a, 64a-87a, 152a.

Although it did not conclusively resolve the issue, the

court of appeals stated that it would “likely find” that

venue was proper, notwithstanding pretrial publicity.

Pet. App. 48a. The court nevertheless deemed the district court to have abused its discretion by denying respondent’s request to ask every prospective juror more

specific questions about the precise content of the pretrial publicity he or she had come across. Id. at 44a-60a.

The court of appeals recognized this Court’s holding

in Mu’Min v. Virginia, 500 U.S. 415 (1991), that the

Constitution does not require trial courts to ask prospective jurors “about the specific contents of the news

reports to which they ha[ve] been exposed.” Id. at 417;

see Pet. App. 57a-59a. But the court described its 1968

opinion in Patriarca v. United States, 402 F.2d 314 (1st

Cir.), cert. denied, 393 U.S. 1022 (1969)—which neither

the defense nor the court of appeals itself had mentioned

during the pretrial proceedings—as imposing a blanket

supervisory rule that requires such an inquiry at counsel’s request in cases of substantial publicity. Pet. App.

49a-60a. The court found the perceived error harmless

as to respondent’s convictions, because he had conceded

16

his guilt, but concluded that vacatur of his capital sentences was required. Id. at 60a, 61a n.33.

The court of appeals also concluded that the district

court had abused its discretion by excluding evidence

about the Waltham murders. Pet. App. 64a-87a; see id.

at 87a n.51 (noting Judge Kayatta’s more-limited conclusion). The court of appeals viewed the Waltham evidence as “highly probative of Tamerlan’s ability to influence” or intimidate respondent into bombing the

Boston Marathon. Id. at 76a. The court refused to defer to the district court’s assessment that the Waltham

evidence’s “probative value [was] outweighed by the

danger of creating unfair prejudice, confusing the issues, or misleading the jury,” 18 U.S.C. 3593(c), and it

deemed the exclusion prejudicial. Pet. App. 80a-84a.

The court of appeals further concluded, in light of its

view that Todashev’s statements were unprivileged and

highly probative, that the district court should have

ordered the government to produce those statements so

that respondent could introduce them as mitigating

evidence and pursue any investigatory leads. See id. at

85a-87a.

Because the court of appeals vacated respondent’s

death sentences on those rationales, it did not definitively resolve certain other claims. Pet. App. 48a-49a,

61a-63a, 102a. Judge Torruella wrote a separate partial

concurrence asserting that a change of venue should

have been granted. Id. at 153a-188a.

SUMMARY OF ARGUMENT

The court of appeals improperly vacated the capital

sentences recommended by the jury in one of the most

important terrorism prosecutions in our Nation’s history. This Court should reverse the decision below and

put this case back on track toward a just conclusion.

17

I. As this Court has long recognized, a prospective

juror’s exposure to pretrial publicity does not mean that

he or she is unable to decide a case impartially. The fair

determination of guilt and punishment for a ubiquitously publicized crime is neither impossible nor the peculiar province of the ignorant. Instead, thoughtful and

informed citizens—the ideal jurors—may serve on a

jury so long as they “can lay aside their impressions or

opinions and render a verdict based on the evidence

presented in court.” Skilling v. United States, 561 U.S.

358, 398-399 (2010) (brackets and citation omitted).

Identifying impartial prospective jurors is “particularly within the province of the trial judge,” who “sits in

the locale where the publicity is said to have had its

effect,” observes prospective jurors up close, and can

adopt tailored measures to detect and eliminate bias.

Skilling, 561 U.S. at 386 (citations omitted). And as the

court of appeals in this case recognized at the time, the

district judge “carefully differentiate[d] between those

individual jurors who have been exposed to publicity but

are able to put that exposure aside and those who have

developed an opinion they cannot put aside.” Pet. App.

253a. The district court summoned an expanded jury

pool, screened it with a lengthy questionnaire that included multiple questions about pretrial publicity, and

then conducted a 21-day voir dire—with follow-up questions from the parties—probing jurors on their exposure to publicity and many other topics. The result was

a set of “provisionally qualified” jurors “capable of

providing [respondent] with a fair trial.” Id. at 240a.

The court of appeals’ later invalidation of that process is unsustainable. The court improperly invoked its

“supervisory power” to impose an inflexible mandate

18

that this Court has previously rejected as a constitutional prerequisite for selecting an impartial jury—

namely, a requirement to question all prospective jurors “about the specific contents of the news reports to

which they ha[ve] been exposed.” Mu’Min v. Virginia,

500 U.S. 415, 417 (1991). In doing so, the court of appeals deviated sharply from this Court’s precedents

reviewing federal jury-selection procedures and gave

short shrift to the superior perspective and conscientious efforts of the district judge to address pretrialpublicity concerns through individualized interviews

rather than inflexible scripts. The decision below also

disregarded the practical realities of a jury pool unlikely to have comprehensive recall of specific news

items, a defendant who conceded the facts to which the

media coverage primarily related, and a deliberative

jury that ultimately rejected the death penalty for many

of respondent’s capital crimes.

II. The court of appeals’ alternative rationale for

vacating respondent’s capital sentences—that the district court abused its discretion by excluding evidence

pertaining to the unsolved Waltham deaths—was likewise an unwarranted usurpation of the district judge’s

sound discretion. Any minimal probative value of Tamerlan’s possible involvement in a different crime (robbery and murder of drug dealers), with a different accomplice (Todashev), and an apparently different object

(money and the elimination of witnesses), was outweighed by the confusion and distraction of the minitrial that would have been required for respondent to

ask his own jury to discern the relevance—if any—of

that separate unsolved crime. Such a minitrial was exceedingly unlikely to be productive, as everyone allegedly involved in the Waltham crime was dead and the

19

credibility of Todashev’s self-serving statement blaming Tamerlan, right before his own suicidal attack on

law enforcement, was specious at best. And even if

Todashev’s story were believable in all of its particulars,

it showed at most that Tamerlan had committed murder

on the spur of the moment and allowed Todashev to opt

out—not that Tamerlan intimidated respondent into

researching, building, and using homemade shrapnel

bombs to kill innocent people at the Boston Marathon.

Indeed, any error in the district court’s handling of

the Waltham evidence was harmless beyond a reasonable doubt. The record definitively demonstrates that

respondent was eager to commit his crimes, was untroubled at having ended two lives and devastated many others, and remained proud of his actions even after he had

run Tamerlan over and was hiding out alone. The jury

that watched a video of respondent place and denotate

a shrapnel bomb just behind a group of children would

not have changed its sentencing recommendation based

on Tamerlan’s supposed involvement in unrelated

crimes two years earlier. The court of appeals lacked

any sound basis for concluding otherwise and undoing

the work of the jurors to whom the issue of capital punishment was properly entrusted.

ARGUMENT

I. THE COURT OF APPEALS ERRED IN APPLYING AN

INFLEXIBLE VOIR DIRE RULE TO INVALIDATE

RESPONDENT’S CAPITAL SENTENCES

In recognition of the high profile of this case, the district court oversaw a meticulous 21-day jury-selection

process that was carefully calibrated to identify juror

bias. Reviewing the voir dire at the time, the court of

appeals praised it as thorough and effective. Pet. App.

20

250a. The jury’s “nuance[d]” verdict, which recommended capital sentences for only six of the 17 capital

offenses that respondent had admitted, id. at 48a, confirmed the correctness of that evaluation.

A different panel of the court of appeals nonetheless

undid the district court’s and the jury’s work after the

fact, based on a previously unmentioned “supervisory

rule” requiring a district court to ask every potential

juror to try to recall specific news items related to the

case that he or she may have encountered years earlier.

Such questioning, however, is not a prerequisite for an

unbiased jury, and the court of appeals’ rigid mandate

is a sharp, unwarranted, and impractical departure

from this Court’s own deferential and case-specific approach to reviewing voir dire. This Court should make

clear that the court of appeals erred in imposing such

questioning as an inflexible rule.

A. The District Court’s Extensive Jury-Selection

Procedures Appropriately And Effectively Ensured

An Impartial Jury

As this Court has emphasized, “pretrial publicity—

even pervasive, adverse publicity—does not inevitably

lead to an unfair trial.” Skilling v. United States, 561

U.S. 358, 384 (2010) (citation omitted). Jurors “need not

enter the box with empty heads in order to determine

the facts impartially”; instead, it “ ‘is sufficient if the

jurors can lay aside their impressions or opinions and

render a verdict based on the evidence presented in

court.’ ” Id. at 398-399 (brackets and citation omitted).

To ensure that jurors meet that standard, the judicial

system places “primary reliance on the judgment of the

trial court,” with its local knowledge and firsthand observations, to craft appropriate jury-selection procedures. Id. at 386 (citation omitted); see id. at 385-388 &

21

n.21, 399 n.34. The district court’s careful procedures

here provide no basis for disregarding “the respect due

to [its] determinations,” id. at 387, in its management of

jury selection in this complex and sensitive case.

1. A juror can be impartial even if he or she has seen,

and formed opinions based on, pretrial publicity

a. “It is not required * * * that the jurors be totally

ignorant of the facts and issues involved” for a defendant to receive a fair trial. Irvin v. Dowd, 366 U.S. 717,

722 (1961). Instead, the Sixth Amendment requires an

“impartial jury.” And “juror impartiality * * * does

not require ignorance.” Skilling, 561 U.S. at 381.

For well over a century, the Court has recognized

that “every case of public interest is almost, as a matter

of necessity, brought to the attention of all the intelligent people in the vicinity,” such that “scarcely any one

can be found among those best fitted for jurors who has

not read or heard of it, and who has not some impression

or some opinion in respect to its merits.” Reynolds v.

United States, 98 U.S. 145, 155-156 (1879); see Irvin,

366 U.S. at 721 (similar). The “widespread and diverse

methods of communication” that make that so, Irvin,

366 U.S. at 722, have multiplied immeasurably in recent

years, increasing the potential depth and breadth of

media coverage in a high-profile case.

In light of those realities, to “hold that the mere

existence of any preconceived notion as to the guilt or

innocence of an accused, without more, [is] sufficient to”

disqualify a juror would “establish an impossible standard.” Irvin, 366 U.S. at 723. It would also have the

harmful effect of “exclud[ing] intelligent and observing”

people capable of reaching a verdict “according to the

testimony,” United States v. Burr, 25 F. Cas. 49, 51

(C.C.D. Va. 1807) (Marshall, C.J.)—the very people

22

“best qualified to serve as jurors,” Irvin, 366 U.S. at

722. The critical question for jury selection thus is not

whether jurors lack preexisting impressions or opinions, but instead whether “jurors can lay aside their impressions or opinions and render a verdict based on the

evidence presented in court.” Skilling, 561 U.S. at 398399 (emphasis added; brackets and citation omitted).

b. With one exception not presented here—pretrial

publicity so “extreme” as to create a “presumption of

prejudice”—the central mechanism to gauge juror impartiality is voir dire examination. Skilling, 561 U.S. at

381. That, in turn, is “particularly within the province

of the trial judge.” Id. at 386 (citation omitted).

The trial judge is ideally situated to manage voir dire

in a heavily publicized case, because the judge “ ‘sits in

the locale where the publicity is said to have had its

effect’ and may base her evaluation on her ‘own perception of the depth and extent of news stories that might

influence a juror.’ ” Skilling, 561 U.S. at 386 (citation

omitted). And the judge’s personal involvement in an

“in-the-moment voir dire affords * * * a[n] intimate

and immediate basis for assessing a venire member’s

fitness for jury service.” Id. at 386-387. Indeed, the

“function” of the trial judge in conducting voir dire “is

not unlike that of jurors later on in the trial”; “[b]oth

must reach conclusions as to impartiality and credibility

by relying on their own evaluations of demeanor evidence and of responses to questions.” Rosales-Lopez v.

United States, 451 U.S. 182, 188 (1981) (plurality opinion).

The trial judge therefore has broad latitude in “determinations of juror impartiality and of the measures

necessary to ensure that impartiality.” Skilling, 561

U.S. at 387. As the Court summarized in Skilling v.

23

United States, “[n]o hard-and-fast formula dictates the

necessary depth or breadth of voir dire.” Id. at 386.

This Court has instead “stressed the wide discretion

granted to the trial court in conducting voir dire in the

area of pretrial publicity and in other areas of inquiry

that might tend to show juror bias.” Mu’Min v. Virginia, 500 U.S. 415, 427 (1991).

c. This Court has required a particular line of inquiry only in very limited contexts. For example, the

Court has required trial courts to cover the subject of

racial or ethnic prejudice, which can raise “unique historical, constitutional, and institutional concerns” in

certain cases. Pena-Rodriguez v. Colorado, 137 S. Ct.

855, 868 (2017); see Mu’Min, 500 U.S. at 422-424 (reviewing constitutional and supervisory-rule precedents). And even then, “the trial judge retains discretion as to the form and number of questions on the subject.” Turner v. Murray, 476 U.S. 28, 37 (1986); see

Mu’Min, 500 U.S. at 424 (emphasizing that both state

and federal trial judges have “great latitude in deciding

what questions should be asked on voir dire”); RosalesLopez, 451 U.S. at 195 (Rehnquist, J., concurring in the

judgment) (relying, in controlling opinion, on “the trial

court’s discretion” in determining whether to ask voir

dire questions regarding racial and ethnic prejudice).

The Court has, in particular, made clear that a district court can select an “impartial jury” in a heavily

publicized case even without questioning prospective

jurors “about the specific contents of the news reports

to which they ha[ve] been exposed.” Mu’Min, 500 U.S.

at 417. In Mu’Min v. Virginia, the Court rejected a

state capital defendant’s claim that the Constitution requires that procedure, noting that such a rule would create a more demanding standard for questioning about

24

pretrial publicity than the Court had required about racial or ethnic bias. Id. at 424, 431. The Court explained

that “[w]hether a trial court decides to put questions

about the content of publicity to a potential juror or not,

it must make the same decision at the end of the questioning: is this juror to be believed when he says he has

not formed an opinion about the case?” Id. at 425. And

the Court held that the trial judge had impaneled a constitutionally impartial jury even though he had “refused

to ask any of [the defendant’s] proposed questions relating to the content of news items that potential jurors

might have read or seen.” Id. at 419; see id. at 420-421,

431-432 (recounting the trial court’s more limited inquiry).

2. The district court’s voir dire procedures here were

appropriately tailored to produce an impartial jury

The district judge in this case was likewise able to

assess each juror’s potential bias, and seat an impartial

jury, without asking such intricate questions of every

prospective juror. By any fair measure, the court acted

well within its broad discretion to devise “measures necessary to ensure” juror impartiality. Skilling, 561 U.S.

at 387. The court conducted a thorough voir dire spanning 21 court days and nearly 4000 transcript pages. It

asked virtually all prospective jurors about the influence of pretrial publicity, excused for cause numerous

prospective jurors who could not be impartial, and

seated a jury that was not biased against respondent on

the critical question of the appropriate sentence—as

evidenced by the nuanced penalty-phase verdict. See

Pet. App. 47a-48a, 329a-330a.

a. As the court of appeals observed at the time, the

district court’s process for identifying a 70-person slate

of “provisionally qualified” jurors was “thorough and

25

appropriately calibrated to expose bias, ignorance, and

prevarication.” Pet. App. 240a, 250a (denial of second

mandamus petition). The district court “t[ook] ample

time to carefully differentiate between those individual

jurors who have been exposed to publicity but are able

to put that exposure aside and those who have developed an opinion they cannot put aside.” Id. at 253a. The

result was a set of prospective jurors “capable of providing [respondent] with a fair trial.” Id. at 240a.

The district court began by summoning an “expanded jury pool,” with 1373 citizens reporting for jury

selection. Pet. App. 223a n.2; see id. at 27a. The court

directed each of them to complete under oath “a long

and detailed one-hundred-question questionnaire” that

had been “jointly developed” with the parties. Id. at

223a n.2, 249a; see id. at 350a-383a. The questionnaire

required prospective jurors to list their “primary

source[s] of news,” with specific follow-ups about print,

television, radio, and internet sources. Id. at 371a. It

then asked how prospective jurors would “describe the

amount of media coverage [they] have seen about this

case,” whether a “lot,” a “moderate” amount, a “little,”

or “[n]one.” Id. at 372a. And Question 77 asked each

prospective juror (1) whether “[a]s a result of what [he

or she] ha[d] seen or read in the news media,” he or she

had “formed an opinion” that respondent was “guilty”

or “not guilty,” or “should” or “should not” “receive the

death penalty,” and (2) if so, whether he or she would be

“able or unable to set aside [that] opinion and base [his

or her] decision about guilt and punishment solely on

the evidence that will be presented * * * in court.” Id.

at 373a.

The questionnaire enabled the district court, in consultation with the parties, to conduct an initial screen of

26

the first half of the jury pool and excuse nearly twothirds (441 of 697) of those prospective jurors. See Pet.

App. 30a; C.A. App. 3866, 3894. That process provided

a narrower, but still substantial, pool of 256 prospective

jurors for individual voir dire for fitness to serve on the

12-person jury. Pet. App. 30a. The court and the parties then engaged in a “time-consuming” and tailored

“face-to-face, give-and-take” with each of those individuals. Id. at 223a, 227a. As the court later emphasized,

it refused to “accept[ ] at face value” the prospective

jurors’ questionnaire responses on the effect of pretrial

publicity. Id. at 226a. Instead, the court asked virtually

every prospective juror—including all those ultimately

seated—to expand on his or her answer to Question 77.

See J.A. 290, 299-300, 311-312, 326-328, 339, 360-361,

383-384, 399-401, 419-421, 434, 448-449, 459.

The district court also allowed the parties what respondent’s counsel at the time called “considerable latitude” to ask follow-up questions—including on pretrial

publicity. C.A. App. 1143; see, e.g., J.A. 317-318, 331332, 350, 371-372, 407-412, 455-456 (defense follow-up on

pretrial publicity during voir dire of seated jurors).

Based on the individualized questioning, the district

court excused numerous prospective jurors for cause.

See Pet. App. 35a. And each side was able to exercise

23 peremptory strikes. See id. at 224a, 235a & n.1.

b. “Inspection of the questionnaires and voir dire of

the individuals who actually served as jurors,” Skilling,

561 U.S. at 389, illustrates how the district court ensured their ability to be impartial. Nine of 12 jurors had

seen only a little or a moderate amount of pretrial publicity. See C.A. App. 12,132 (table of jurors’ questionnaire responses). All 12 stated both on their question-

27

naires and at voir dire that they had not formed an opinion regarding punishment—the only part of the verdict

that respondent ultimately contested. See Pet. App.

60a; Gov’t C.A. Br. 174 (table of jurors’ responses). And

all 12 indicated “that they could adjudicate [the case] on

the evidence as opposed to personal biases or preconceived notions.” Pet. App. 41a.

The jury-selection process in this case did exactly

what it was supposed to do: identify potential bases for

bias, and then explore whether they would actually prevent jurors from having an open mind once they were

sworn in. For example, in response to the district

court’s request that he elaborate on his answer to Question 77, one juror acknowledged a preliminary impression that “obviously [respondent] was involved in something,” but emphasized that he nevertheless viewed respondent as “innocent until proven guilty.” J.A. 312

(Juror 83). The district court did not simply accept the

juror’s assurance but probed more deeply, asking “how

would you handle whatever ideas you’ve had from before the trial?” J.A. 313. The juror answered that he

would make his decision “based on the evidence presented” after “listening” to the witnesses “and what

they say.” J.A. 314. Defense counsel then followed up

on the juror’s statement that respondent was “involved

in something.” J.A 317. In response, the juror clarified

that while he had viewed it as unlikely that respondent

could show “a case of mistaken identity,” he didn’t know

“exactly what” respondent had been “involved in” or

“how.” J.A. 318. And the juror recognized that he

“d[id]n’t know enough” to have a view on the appropriate penalty. J.A. 320.

For the other seated jurors as well, the individualized questioning likewise made clear that the pretrial

28

publicity had not produced any opinions about respondent that the jurors would be unable to set aside. See

J.A. 290 (Juror 35 was not “drawing a conclusion without all the evidence presented”); J.A. 300 (Juror 41 had

“seen some [coverage] in the media” but “d[id]n’t really

follow it”); J.A. 327 (Juror 102 “really d[id]n’t know”

what had happened); J.A. 350 (Juror 138 had seen only

“bits and pieces” of media coverage); J.A. 372 (Juror 229

“suppose[d]” respondent “was involved,” but didn’t “always believe everything” she encountered in the media); J.A. 384 (Juror 286 did not “feel [she] knew enough

of the facts to base a decision”); J.A. 400 (Juror 349 “realized” that she could not “know that he’s guilty” because she didn’t know “what the evidence is”); J.A. 420

(Juror 395 did not have “all the information” and could

“change [her] mind” once she “had more information”);

J.A. 434 (Juror 441 would “[n]eed to see more evidence”

to form an opinion); J.A. 448 (Juror 480 would “need to

sit and look at evidence” to “make [his] decision”); J.A.

459-460 (Juror 487 could “put * * * aside” the impression that “it seemed” respondent had “played a role in”

the crime and “see what the real evidence really is”).

The jurors’ deliberations and penalty verdict reinforce the effectiveness of the selection process. See

Skilling, 561 U.S. at 395 (noting that split verdict “suggests the court’s [impartiality] assessments were accurate”). Notwithstanding that respondent “had effectively conceded” his guilt, the jury during guilt-phase

deliberations sent two notes inquiring about accomplice

liability, “suggest[ing] patient and careful deliberation,” not “a jury inflamed by prejudice, eager to return

a verdict adverse to” him. Pet. App. 328a (emphasis

omitted). Then at the penalty phase, the jury recommended capital sentences for only six of the 17 capital

29

offenses—those corresponding to the bomb placed by

respondent personally. As the district court observed,

the “discriminating nature of the” penalty verdict provides “convincing evidence that this was not a jury impelled by gross prejudice or even reductive simplicity,

but rather a group of intelligent, conscientious citizens.”

Id. at 329a; see id. at 48a (court of appeals acknowledging that the jurors’ “nuance” supported viewing them

“as intent on following the law and the facts”).

B. The Court Of Appeals Erred In Relying On A Novel,

Inflexible, And Unsupported Voir Dire Rule To

Invalidate Respondent’s Capital Sentences

In invalidating respondent’s capital sentences, the

court of appeals did not conclude that any particular

juror had been biased by pretrial publicity or unable to

render a decision based on the trial evidence. The court

instead took the view that its half-century-old decision

in Patriarca v. United States, 402 F.2d 314 (1968), cert.

denied, 393 U.S. 1022 (1969)—which was not cited by

anyone until the post-trial appeal—mandates that a district court must always grant a request by counsel to

ask every prospective juror in a “high-profile case”

what he or she had “ ‘read and heard about the case.’ ”

Pet. App. 53a-54a (citation omitted). This Court—“the

court of ultimate review of the standards formulated

and applied by federal courts in the trial of criminal

cases,” McNabb v. United States, 318 U.S. 332, 347

(1943)—should reverse the application of such an inflexible and unsound rule.

1. In considering the “adequacy of jury selection,”

this Court has been “attentive to the respect” that appellate courts owe “to district-court determinations of

juror impartiality and of the measures necessary to en-

30

sure that impartiality.” Skilling, 561 U.S. at 387. Appellate courts are generally more remote from the specific “ ‘news stories that might influence a juror’ ” and

“lack the on-the-spot comprehension of the situation

possessed by trial judges,” id. at 386 (citation omitted),

that informs the procedures necessary to identify prospective jurors biased by pretrial publicity. “In contrast to the cold transcript received by the appellate

court, the in-the-moment voir dire affords the trial

court a more intimate and immediate basis for assessing

a venire member’s fitness for jury service,” id. at 386387, as well as the ability to evaluate and modify the

procedures as they are implemented.

The district court did precisely that here when it

determined that tailored, individualized questioning

worked better than respondent’s proposal for formulaic, blanket, open-ended questions, which might well be

counterproductive. In particular, the court found the

open-ended narrative question that respondent wanted

for the questionnaire—“What did you know about the

facts of this case before you came to court today (if anything)?”—to be an “unfocused” invitation for “unmanageable data” that was unnecessary in light of the existing questions and the ability to later individually examine each prospective juror. J.A. 475, 480-481; see J.A.

485-486. Similarly, the court reasonably determined

that “try[ing] to stick with a repeatable formula” by requiring scripted questions on pretrial publicity during

each individual voir dire could “be counter-productive

actually rather than helpful.” J.A. 498; see J.A. 489 (respondent’s request that the court ask each juror during

voir dire, “Before coming here today, have you heard or

read about anything this case?” and, “What stands out

in your mind from everything you have heard, read or

31

seen about the Boston Marathon bombing and the

events that followed it?”). As the court explained, “detailed questioning about what the juror thinks he or she

knows about the events and the sources places the

wrong emphasis for the juror” and “misdirects things a

little bit.” J.A. 502.

In sound reliance on its assessment that the individualized voir dire enabled determinations of the credibility of each prospective juror’s assurance that he or she

could be impartial, the district court determined that

the best course was the one it had “been following * * *

subject to adjustment as necessary for each witness.”

J.A. 502-503. The court understood that “[e]very juror

is different” and should be “questioned in a way that is

appropriate to the juror’s questionnaire answers and

then to the preceding voir dire answers.” J.A. 498. It

accordingly recognized that “sometimes we do have to

get more specific because of what the juror says,” J.A.

503, and allowed respondent to ask many prospective

jurors questions like the ones that he had proposed asking all prospective jurors, see p. 10, supra.

2. The court of appeals erred not only by wresting

control of the jury-selection process from the decisionmaker best situated to manage it, but also by warping the process from case-specific to invariant. The

court’s invocation of its “supervisory power,” Pet. App.

56a-57a (citation omitted), does not justify such an approach. See, e.g., Jones v. United States, 527 U.S. 373,

383 (1999) (rejecting supervisory rule requiring deadlock instruction in every capital case); see also, e.g.,

United States v. Hasting, 461 U.S. 499, 505 (1983).

As this Court explained in United States v. Payner,

447 U.S. 727 (1980), a federal court may not use its “supervisory power” to impose a rule that this Court has

32

specifically rejected after weighing the same interests.

Id. at 731. In particular, Payner observed that “the supervisory power does not authorize” a suppression rule

where the Court’s own “Fourth Amendment decisions

have established beyond any doubt that the interest in

deterring illegal searches does not justify the exclusion

of tainted evidence.” Id. at 735. The Court emphasized

that the “values assigned to the competing interests do

not change because a court has elected to analyze the

question under the supervisory power instead of the

Fourth Amendment.” Id. at 736. Under either framework, “the need to deter the underlying conduct and the

detrimental impact of excluding the evidence remain

precisely the same.” Ibid.

Payner’s analysis undermines the supervisory rule

adopted by the court of appeals here. As noted above,

this Court specifically held in Mu’Min that questions

“about the specific contents of the news reports to which

[prospective jurors] had been exposed” are not a constitutional prerequisite for selecting impartial jurors. 500

U.S. at 417; accord Skilling, 561 U.S. at 386 (“No hardand-fast formula dictates the necessary depth or

breadth of voir dire.”); United States v. Wood, 299 U.S.

123, 145-146 (1936) (explaining that, because impartiality “is a state of mind” rather than a “technical conception,” the Constitution “lays down no particular tests

and procedure is not chained to any ancient and artificial formula” for “ascertainment of this mental attitude”). The court of appeals accordingly erred in superseding Mu’Min with a supervisory rule based on its “individual judgment.” Payner, 447 U.S. at 737.

Although Mu’Min noted that a handful of circuits

(not including the court below) had issued pre-Mu’Min

decisions requiring publicity-content questions “in

33

some circumstances,” 500 U.S. at 426, the Court did not

approve a wooden rule of the sort that the court of appeals in this case laid down. And whatever the permissibility of such a rule before Mu’Min, one is insupportable now. The Court in Mu’Min reviewed both constitutional and supervisory-power precedents, and while

the Court recognized “more latitude * * * under [its]

supervisory power,” its ultimate rejection of the proposed rule relied on the “parallel themes” of “both sets

of cases.” Id. at 424; see id. at 422-424. One of those

themes was that “the trial court retains great latitude

in deciding what questions should be asked on voir

dire,” id. at 424—the very principle that the decision

below derogates.

Even where this Court has required inquiry into a

particular subject—for example, certain cases involving

possible racial bias—it has remained “careful not to

specify the particulars by which” courts must address

that subject. Mu’Min, 500 U.S. at 431. Whether it was

reviewing a state decision or a federal one, the Court

“did not, for instance, require questioning of individual

jurors about facts or experiences that might have led to

racial bias”—the equivalent of the granular questions

about the content of pretrial publicity the court of

appeals required here. Ibid. (describing Aldridge v.

United States, 283 U.S. 308 (1931)); see Rosales-Lopez

451 U.S. at 194-195 (Rehnquist, J., concurring in the

judgment) (rejecting a “per se rule” governing questioning on racial and ethnic prejudice in favor of an approach that leaves “more to the trial court’s discretion”). If even the “unique * * * concerns” of racial

bias, Pena-Rodriguez, 137 S. Ct. at 868, do not require

such questions, it follows that they are not invariably

34

necessary in the context of pretrial publicity, and that

the court of appeals erred in inflexibly mandating them.

3. The court of appeals purported to unearth its

wooden rule from Patriarca—a circuit decision that

predates Mu’Min by decades, did not explicitly invoke

supervisory powers, and involved (and affirmed) only

the denial of a venue transfer, not review of voir dire.

See Pet. App. 49a-60a; see also Patriarca, 402 F.2d at

317-318. To the extent that Patriarca set forth a mechanical requirement for every voir dire in a case with

substantial pretrial publicity, such a one-size-fits-all

rule lacks justification.

The Patriarca panel did not have the benefit of

Mu’Min and looked to jury-selection procedures proposed by the American Bar Association as a model for

its approach. See Patriarca, 402 F.2d at 318 (citing

1966 draft standards). But Mu’Min rejected reliance

on a later version of those same standards. 500 U.S. at

430-431 (citing 1980 standards). The decision below, in

turn, ascribed Patriarca’s “rationale” to a concern that

the judge have an adequate basis for the evaluation of

impartiality, which it feared might otherwise rest on a

prospective juror’s own assurances. Pet. App. 51a, 56a57a. But assessments of juror impartiality necessarily

rely on such assurances to a significant degree; that is

precisely why reviewing courts defer to trial courts’

ability to gauge a “prospective juror’s inflection, sincerity, demeanor, candor, body language, and apprehension of duty.” Skilling, 561 U.S. at 386. And while

“[q]uestions about the content of the publicity to which

jurors have been exposed might be helpful” in some

cases as part of the broader informational package,

35

Mu’Min, 500 U.S. at 425, such questions are not so universally necessary that inflexibly requiring them is an

appropriate prophylactic.

The court of appeals believed that the amount of publicity in this case demanded that content questions be

asked of all prospective jurors, see, e.g., Pet. App. 59a,

but the district court could reasonably determine that

the degree of publicity in fact cuts the opposite way.

This is not a case in which impartiality may have been

unduly influenced by some key piece of pretrial publicity that only some people saw. Cf. Rideau v. Louisiana,

373 U.S. 723, 724 (1963). Instead, it is a case with a massive volume of “largely factual” local and nationwide

pretrial coverage to which virtually every engaged U.S.

citizen was exposed. Pet. App. 47a, 53a. Only four of

the 1373 prospective jurors—three of whom had difficulty comprehending English or the questionnaire—

responded “none” to the question of how much media

coverage they had seen. See Gov’t C.A. Supp. App. 138,

150, 157, 169; Resp. C.A. Special App. 11,932-11,954,

26,129-26,130, 35,678-35,700. By necessity, jury selection for any trial of respondent anywhere would have

had to focus on “impartiality” rather than “ignorance.”

Skilling, 561 U.S. at 381 (emphasis omitted).

The ultimate inquiry of impartiality turns not on categorizing prospective jurors based on which specific

pieces of the unavoidable coverage they might have

seen, but instead on determining their mindsets heading into a trial. See Mu’Min, 500 U.S. at 425; cf. Patton

v. Yount, 467 U.S. 1025, 1035 (1984) (“The relevant

question is not whether the community remembered the

case, but whether the jurors * * * had such fixed opinions that they could not judge impartially the guilt of

36

the defendant.”). Moreover, as the district court recognized, it is doubtful that prospective jurors, two years

after the fact, could have produced a “reliable” list of

what they might specifically have seen and heard. J.A.

494. Thus, unless the court was prepared to disqualify

everyone whose recall seemed deficient, the parties and

the court would inevitably have had to evaluate prospective jurors without a complete—or, in many cases, even

close to complete—record of their media exposure. And

as the district court recognized, attempting to jog or

highlight memories about specific types of exposure—

e.g., newspaper columns expressing views on the death

penalty, Pet. App. 55a—would actually do more harm

than good by dredging up and emphasizing any prejudicial effect that the exposure might have had at the

time, see J.A. 494, 502-503. Cf. Shannon v. United

States, 512 U.S. 573, 586 (1994) (rejecting a supervisory

rule that would “draw the jury’s attention toward the

very thing * * * it should ignore”); Rosales-Lopez, 451

U.S. at 195 (Rehnquist, J., concurring in the judgment)

(rejecting a mandatory-questioning rule where such

questioning could “exacerbate whatever prejudice

might exist without substantially aiding in exposing it”).

4. This particular case was an especially inappropriate candidate for after-the-fact invalidation of the juryselection procedures. Even if the district court had

gleaned a supervisory rule from Patriarca, applying

that rule would have had little benefit. As the court of

appeals recognized, most of the publicity about this case

was either “true” and thus (among other things) subsumed within respondent’s admission of guilt, or else

“trivial” and thus not likely to bias jurors. Pet. App.

46a-47a; see id. at 60a, 61a n.33; cf. Beck v. Washington,

369 U.S. 541, 556 (1962) (distinguishing “straight news

37

stories” from “invidious articles which would tend to

arouse ill will and vindictiveness”).

In particular, the court of appeals pointed to little, if

anything, likely to have specifically biased the jury on

the penalty—the only portion of the verdict that the

court invalidated. Media coverage of “the opinions of

public officials” that capital punishment was appropriate, Pet. App. 53a, would largely have been duplicative

of the jury’s inherent awareness that federal officials

were seeking that penalty. And media coverage of opinions on the appropriate penalty included the views of

the Archbishop of Boston, the Boston Globe’s editorial

board, and 57% of Massachusetts residents that the

death penalty was not warranted. Resp. C.A. Special

App. 10,834, 11,047, 11,051. Moreover, as noted above

(p. 10, supra), respondent in fact asked his content questions to numerous prospective jurors, none of whom recalled seeing coverage relating to the death penalty.

Whatever supervisory power the court of appeals

may have to retroactively declare jury-selection procedures invalid, it abused that power in this case. All that

the court’s remand accomplishes here is to vitiate a

valid penalty that an impartial jury carefully recommended as to some counts but not others. Respondent’s

trial was lengthy and, for many victims of his crimes,

painful. The penalty-phase proceeding required many

victims to testify about the terror that respondent inflicted on them and the ways that their lives continue to

be permanently altered by his brutality. See pp. 13-14,

supra. Another penalty trial would come at the significant cost of requiring those victims to return to court to

“relive their disturbing experiences.” United States v.

Mechanik, 475 U.S. 66, 72 (1986). And it would entail

selecting a new jury through an unnecessarily onerous

38

process that promises to be even longer and more burdensome—but no more effective—than the original.

Nothing justifies that result.

II. THE COURT OF APPEALS ERRED IN ALTERNATIVELY

VACATING RESPONDENT’S CAPITAL SENTENCES

BASED ON HIS BROTHER’S ALLEGED INVOLVEMENT

IN DIFFERENT UNSOLVED CRIMES

The court of appeals’ alternative rationale for vacating respondent’s capital sentences—that the district

court abused its discretion by excluding evidence pertaining to the different and unsolved Waltham crimes—

was likewise flawed. The district court correctly determined, after viewing the key material in camera and

assessing it in relation to the evidence as a whole, that

any minimal probative value of the Waltham evidence

was outweighed by the danger of confusing or distracting the jury. And in any event, the record demonstrates

beyond a reasonable doubt that any error on that issue

was harmless. Even if jurors had found Todashev’s

Waltham story credible, Tamerlan’s alleged involvement in independent crimes almost two years before the

Boston Marathon bombing had no reasonable prospect

of altering the jury’s recommendation that respondent

should receive the death penalty for his own acts of terrorism. 2

Respondent has contended (Br. in Opp. 10) that the court of

appeals’ conclusion that Brady v. Maryland, 373 U.S. 83 (1963),

required disclosure of Todashev’s statements to investigators supplied another “independent ground[ ]” for the court’s judgment. As

the government has previously explained (Cert. Reply Br. 8-10),

that contention is incorrect. Both respondent and the court of appeals treated his Brady argument as intertwined with his argument

for introducing the Waltham evidence as mitigation. See, e.g., Pet.

App. 72a (describing respondent’s Brady argument that Todashev’s

2

39

A. The District Court Did Not Abuse Its Discretion In

Declining To Admit The Waltham Evidence

1. The Federal Death Penalty Act of 1994, 18 U.S.C.

3591 et seq., supplies specialized standards for the admission of evidence in capital-sentencing proceedings.

It safeguards a defendant’s constitutional right to introduce mitigating evidence by allowing him to offer “any

information relevant to a mitigating factor” at the

penalty-phase proceeding, “regardless of its admissibility under” other evidentiary rules. 18 U.S.C. 3593(c);

see Eddings v. Oklahoma, 455 U.S. 104, 112 (1982). At

the same time, the statute enables district courts to

keep the penalty phase properly focused by placing special emphasis on courts’ traditional discretion to exclude

evidence “if its probative value is outweighed by the

danger of creating unfair prejudice, confusing the issues, or misleading the jury.” 18 U.S.C. 3593(c).

In requiring “only that the countervailing interests

‘outweigh’ the information’s probative value” for exclusion, Section 3593(c) differs from Federal Rule of Evidence 403, which requires that “the countervailing interests ‘substantially outweigh[ ] the evidence’s probative value.’ ” United States v. Lujan, 603 F.3d 850, 854

(10th Cir. 2010), cert. denied, 562 U.S. 1303 (2011). And

an appellate court reviews a district court’s application

of that permissive standard only “for abuse of discretion.” United States v. Sampson, 486 F.3d 13, 42 (1st

Cir. 2007), cert. denied, 553 U.S. 1035 (2008); see Pet.

statements, “ ‘if presented,’ would have” been mitigating). If this

Court agrees with the government either that all the Waltham evidence was properly excluded under 18 U.S.C. 3593(c) or that excluding it did not affect the outcome of the penalty proceeding, then it

necessarily follows that respondent was not prejudiced by any withholding.

40

App. 72a-73a & n.40. Such review recognizes the district court’s “familiarity with the details of the case and

* * * greater experience in evidentiary matters,” Sprint/

United Mgmt. Co. v. Mendelsohn, 552 U.S. 379, 384

(2008), and requires “great deference to the trier’s firsthand knowledge,” Sampson, 486 F.3d at 42. Reversal is

warranted only if the district court’s “judgment is

plainly incorrect.” Ibid.

2. The district court did not abuse its discretion in

declining to allow respondent to inject the disputed

Waltham issue into the penalty phase of his trial for

bombing the Boston Marathon. Instead, the court reasonably determined that any attenuated relevance of

the Waltham murders did not warrant inviting a complicated minitrial about that unsolved crime. See, e.g.,

United States v. Umaña, 750 F.3d 320, 350-351 (4th Cir.

2014) (finding no abuse of discretion in denial of capital

defendant’s request to admit evidence of separate murders where “the process would amount to mini-trials

that would take days and distract the jury”), cert.

denied, 576 U.S. 1035 (2015); United States v. Mitchell,

502 F.3d 931, 991-992 (9th Cir. 2007) (finding no abuse

of discretion where “more information” about “separate

murders would confuse the issues and mislead the

jury”), cert. denied, 553 U.S. 1094 (2008).

Even if Todashev’s story were to be believed, the

Waltham crime’s participants, manner, and motivation

all differ markedly from the Boston Marathon bombing.

Todashev’s claim was that Tamerlan had recruited

Todashev to participate in a robbery for money and then

decided on the spur of the moment to kill the victims—

by himself—to eliminate any witnesses. Pet. App. 65a66a. The marathon bombing, in contrast, was a preplanned terrorist attack in which respondent personally

41

murdered multiple “innocent people” in furtherance of

his own expressly declared jihadist aspirations. J.A.

204; see, e.g., J.A. 118 (seeking the “[h]ighest level of

Jannah [paradise]”); J.A. 117 (“I wanna bring justice for

my people.”); J.A. 203-204 (“I ask Allah to make me a

shahied [martyr].”).

Respondent’s attempt to link the Waltham murders

to his culpability for the marathon bombing involved

multiple complicated and contested steps that would

have required jurors to evaluate the credibility of

Todashev’s allegations not only that Tamerlan committed the Waltham murders, but also that Tamerlan did

so in the particular way that Todashev claimed. Such

an assessment would have been extremely difficult

given that “the only identified suspects—Tamerlan and

Todashev—were both dead.” Pet. App. 87a. The district court thus correctly observed, after reviewing in

camera the FBI report describing Todashev’s interview

in detail, that the Waltham evidence gave the jury no

way to sort out the truth. J.A. 650.

As the district court pointed out, the evidence made

it just as likely that “Todashev was the bad guy and

Tamerlan was the minor actor.” J.A. 650. Following the

murders, Todashev threw out his cell phone and left

Massachusetts under a false name. J.A. 963-964. Tamerlan, in contrast, remained in town and even socialized

with the younger brother of one of the Waltham victims.

See J.A. 969. When investigators challenged Todashev’s denial of involvement in the Waltham crime,

Todashev had every reason to deflect blame for the

murders by minimizing his own role and exaggerating

Tamerlan’s, especially because Tamerlan was dead and

could not rebut Todashev’s account. Todashev’s violent

attack on the armed investigators shortly thereafter,

42

while writing out a confession, casts even further doubt

on his veracity. See J.A. 918; J.A. 575-579 (report finding officer-involved shooting of Todashev justified).

The district court was not required to sidetrack the

penalty phase of respondent’s trial for the Boston Marathon bombing by inviting jurors to determine what really happened during the Waltham crimes. If anything,

Todashev’s story tends to undercut, rather than support, respondent’s suggestion that Tamerlan strongarmed him into participating in the marathon bombing. Todashev did not say that he was intimidated or

influenced to commit an act of extreme cruelty in Waltham; instead, he told investigators that he opted out of

murdering the drug dealers whom he had agreed to rob.

J.A. 947-948; see J.A. 939-941. Thus, according to Todashev, Tamerlan was unable to persuade or coerce him

into committing murder, even though Tamerlan was

armed with a gun and argued that they needed to kill

the victims to avoid leaving witnesses. See J.A. 947.

And Todashev did not indicate that Tamerlan retaliated

against him, or even threatened to do so, for declining

to participate in the killings.

The Waltham evidence also undercut, or at least

complicated, respondent’s theory that his willingness to

commit murder was solely the result of Tamerlan’s influence. Respondent’s friend Kadyrbavev’s proffer that

respondent had described Tamerlan as committing “jihad” in Waltham, J.A. 583-584, indicated that respondent admired Tamerlan’s perceived religiously motivated murder, not that he saw Tamerlan’s actions as intimidating. At a minimum, the sum of the Waltham evidence fails to offer meaningful support to the notion

that respondent’s own willingness to kill innocent peo-

43

ple was the unwanted end-product of religious indoctrination by Tamerlan. Respondent’s asserted theory of

relevance did not warrant inserting the trial of another

crime, not involving respondent, into the penalty phase

of his own trial.

3. Neither the court of appeals nor respondent has

offered any sound basis for second-guessing the district

court’s Section 3593(c) determination and ordering a

new sentencing proceeding that would include a minitrial of the Waltham murders. The court of appeals

focused heavily on Todashev’s statement that he “did

not have a way out,” deeming it evidence that Todashev

acceded to “commit[ing] acts of brutality” because he

was afraid of Tamerlan. Pet. App. 75a-76a; see id. at

77a n.43, 78a. But context does not support that interpretation. Todashev clearly did think he had a “way

out” of committing murder at Tamerlan’s behest—he

told investigators that he declined to do so. J.A. 945949. The “no way out” statement instead reflects Todashev’s claimed realization that once Tamerlan had killed

the victims, “it was too late” for Todashev to avoid participating in the crime, which is why he “went back in

and helped” Tamerlan wipe the scene of fingerprints.

J.A. 948-949.

The court of appeals took the view that the Waltham

evidence must have been substantially probative, because the district court admitted “other, lesser evidence

of Tamerlan’s belligerence—like his screaming at others for not conforming to his view of how a good Muslim

should act.” Pet. App. 77a. But whatever the probative

weight of those other incidents, which the court of

appeals viewed as evidence of Tamerlan’s “domination,”

ibid., they do not suggest that the district court was

compelled to admit Todashev’s unverified story, in

44

which Tamerlan allowed Todashev to opt out of committing murder. In any event, those incidents, unlike the

Waltham murders, did not risk distracting the jurors by

requiring them to sort through conflicting evidence in

an attempt to discern the relevance, if any, of a separate

unsolved crime.

Respondent and the court of appeals have suggested

(Pet. App. 82a; Br. in. Opp. 20-21) that a new penalty

proceeding would not require a minitrial, on the theory

that the government essentially forfeited its right to

contest Todashev’s story when an FBI agent “swore out

an affidavit” for a search warrant for Tamerlan’s car

“saying that there is probable cause to believe that

Todashev and Tamerlan planned and carried out” the

Waltham murders. Pet. App. 81a n.47; see J.A. 9831003. The court of appeals believed that the district

court was not aware of that affidavit when it found the

Waltham evidence “unreliable.” Pet. App. 68a; see Br.

in Opp. 21. In fact, however, the district court knew

about the search-warrant affidavit when it made its Section 3593(c) determination, which was based on a

firsthand view of the evidence as a whole. See J.A. 552553, 640, 970-971.

Contrary to the court of appeals’ suggestion, the

affidavit provided no basis for limiting the discussion of

the Waltham evidence. In truthfully describing what

Todashev had claimed, the affidavit simply represented

that Todashev’s story supported further investigation—

not that it was necessarily accurate, let alone accurate

in all of its particulars. See Franks v. Delaware, 438

U.S. 154, 164-165 (1978) (explaining that a warrant affidavit need not be “ ‘truthful’ in the sense that every fact

recited in the warrant affidavit is necessarily correct,

45

for probable cause may be founded upon hearsay and

upon information received from informants”).

Nor did the district court have any other apparent

way to cabin the scope of a Waltham inquiry. Opening

the door by admitting any reference to the separate

Waltham crimes would have invited a lengthy discussion of Todashev’s claims and the many problems with

his credibility. The district court did not abuse its discretion by declining to send the jury on a long and convoluted detour to explore what was at most an ancillary

matter.

B. Any Error In The District Court’s Handling Of The

Waltham Issue Was Harmless Beyond A Reasonable

Doubt

Even assuming that the district court abused its

broad discretion by excluding the Waltham evidence,

the record definitively establishes that introducing that

evidence would not have changed the outcome of respondent’s penalty proceeding. Thus, any error would

not entitle respondent to vacatur of his sentences. See

18 U.S.C. 3595(c)(2) (“The court of appeals shall not reverse or vacate a sentence of death on account of any

error which can be harmless * * * where the Government establishes beyond a reasonable doubt that the

error was harmless.”); Skipper v. South Carolina, 476

U.S. 1, 7-8 (1986) (reviewing the exclusion of mitigating

evidence for harmless error).

The court of appeals’ speculation that jurors might

have concluded that respondent was intimidated by

Tamerlan into committing the marathon bombing, Pet.

App. 76a, was overwhelmingly refuted by the trial evidence, which confirmed that respondent had a life and

mind independent of Tamerlan’s. Respondent lived 60

miles away from Tamerlan, with his own car and his own

46

friends. See J.A. 690, 889. He used his own computer

to read al Qaeda propaganda that encouraged terrorist

attacks and gave instructions on making shrapnel

bombs to “damage the enemy.” See J.A. 99-112, 890899. He texted a friend and tweeted about martyrdom

and jihad. See J.A. 113 (saying “killing Muslims is the

only promise” both 2012 presidential candidates “will

fulfill”); J.A. 121 (praying for “victory over kufr [infidels]”); J.A. 118 (seeking “[h]ighest level of Jannah”).

Additional evidence confirmed that respondent was

a willing participant in terrorism, not a reluctant accessory. The jury watched a video of him separating from

his brother and then selecting a crowded outdoor patio

with children present as the target for his shrapnel

bomb, designed and built to cause maximum suffering

and death. See Exhibit 22, at 6:45-7:55; J.A. 124. After

the bombing, respondent chose to meet back up with

Tamerlan, and he returned to college where he showed

no signs of remorse. He looked again at the al Qaeda

magazine with the bomb-making instructions, J.A. 103;

he went to the gym with a friend, Exhibits 1181-1183;

and he tweeted “I’m a stress free kind of guy,” J.A. 145.

When a friend texted him about being a bombing suspect, respondent texted back “Lol [laughing out loud].”

J.A. 146. A few days later, respondent again joined with

Tamerlan in murdering Officer Collier, carjacking Dun

Meng, and attempting to kill police officers during the

Watertown shootout. See Pet. App. 7a-9a.

Respondent never offered a single piece of evidence

to suggest that he attempted to get out from under

his brother’s purported influence or felt apprehension

about his crimes. The jury instead saw compelling

evidence—including video evidence—showing just the

47

opposite. While separated from Tamerlan at the marathon, respondent killed two people and mutilated several more with his own bomb. Exhibits 22, 23, 1634C.

While holding Dun Meng a prisoner in his carjacked

SUV, respondent casually shopped for snacks at a convenience store. Exhibit 748. When officers tracked him

to Watertown, respondent threw explosives at them and

tried to run them (and Tamerlan) over. J.A. 180. And

when hiding alone in the boat, believing that Tamerlan

had died, respondent wrote that he was “jealous” of

Tamerlan’s martyrdom, that he hoped for his own martyrdom, and that his terrorist actions were justified

because of perceived wrongdoing by the American government. J.A. 203-204.

In the face of that evidence, no reasonable prospect

exists that Todashev’s Waltham story would have

changed the jury’s determination that respondent deserved the ultimate punishment for his horrific crimes.

Respondent nevertheless contends that the jury was

“receptive” to the argument that Tamerlan had influenced him, because it “rejected a death sentence for all

counts based on acts for which Tamerlan was present.”

Br. in Opp. 22-23; see J.A. 619-621 (verdict form). But

the jury’s verdict in fact confirms the irrelevance of the

Waltham issue by demonstrating that the jury carefully

considered each of respondent’s crimes and determined

that capital punishment was warranted for the horrors

that he personally inflicted—setting down a shrapnel

bomb in a crowd and detonating it, killing a child and a

promising young student, and consigning several others

“to a lifetime of unimaginable suffering.” Pet. App. 6a.

That determination by 12 conscientious jurors deserves

respect and reinstatement by this Court.

48

CONCLUSION

The judgment of the court of appeals should be reversed.

Respectfully submitted.

ELIZABETH B. PRELOGAR

Acting Solicitor General

JOHN C. DEMERS

Assistant Attorney General

NICHOLAS L. MCQUAID

Acting Assistant Attorney

General

ERIC J. FEIGIN

Deputy Solicitor General

CHRISTOPHER G. MICHEL

MICHAEL R. HUSTON

Assistants to the Solicitor

General

WILLIAM A. GLASER

JOSEPH F. PALMER

Attorneys

JUNE 2021

APPENDIX

1.

18 U.S.C. 3593(c) provides:

Special hearing to determine whether a sentence of death

is justified

(c) PROOF OF MITIGATING AND AGGRAVATING

FACTORS.—Notwithstanding rule 32 of the Federal

Rules of Criminal Procedure, when a defendant is found

guilty or pleads guilty to an offense under section 3591,

no presentence report shall be prepared. At the sentencing hearing, information may be presented as to any

matter relevant to the sentence, including any mitigating or aggravating factor permitted or required to be

considered under section 3592. Information presented

may include the trial transcript and exhibits if the hearing is held before a jury or judge not present during the

trial, or at the trial judge’s discretion. The defendant

may present any information relevant to a mitigating

factor. The government may present any information

relevant to an aggravating factor for which notice has

been provided under subsection (a). Information is admissible regardless of its admissibility under the rules

governing admission of evidence at criminal trials except that information may be excluded if its probative

value is outweighed by the danger of creating unfair

prejudice, confusing the issues, or misleading the jury.

For the purposes of the preceding sentence, the fact that

a victim, as defined in section 3510, attended or observed

the trial shall not be construed to pose a danger of creating unfair prejudice, confusing the issues, or misleading the jury. The government and the defendant shall

be permitted to rebut any information received at the

hearing, and shall be given fair opportunity to present

(1a)

2a

argument as to the adequacy of the information to establish the existence of any aggravating or mitigating

factor, and as to the appropriateness in the case of imposing a sentence of death. The government shall open

the argument. The defendant shall be permitted to reply. The government shall then be permitted to reply

in rebuttal. The burden of establishing the existence

of any aggravating factor is on the government, and is

not satisfied unless the existence of such a factor is established beyond a reasonable doubt. The burden of

establishing the existence of any mitigating factor is on

the defendant, and is not satisfied unless the existence

of such a factor is established by a preponderance of the

information.

2.

18 U.S.C. 3595(c) provides:

Review of a sentence of death

(c) DECISION AND DISPOSITION.—

(1) The court of appeals shall address all substantive and procedural issues raised on the appeal of

a sentence of death, and shall consider whether the

sentence of death was imposed under the influence of

passion, prejudice, or any other arbitrary factor and

whether the evidence supports the special finding of

the existence of an aggravating factor required to be

considered under section 3592.

(2)

Whenever the court of appeals finds that—

(A) the sentence of death was imposed under

the influence of passion, prejudice, or any other

arbitrary factor;

3a

(B) the admissible evidence and information

adduced does not support the special finding of the

existence of the required aggravating factor; or

(C) the proceedings involved any other legal

error requiring reversal of the sentence that was

properly preserved for appeal under the rules of

criminal procedure,

the court shall remand the case for reconsideration

under section 3593 or imposition of a sentence other

than death. The court of appeals shall not reverse

or vacate a sentence of death on account of any error

which can be harmless, including any erroneous special finding of an aggravating factor, where the Government establishes beyond a reasonable doubt that

the error was harmless.

(3) The court of appeals shall state in writing the

reasons for its disposition of an appeal of a sentence

of death under this section.

This is a copy of a public record, reproduced as it was published. It is not legal advice, and it may not be the version a court would rely on. Check the official source before you cite it.

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