United States v. Donnell Crews , 856 F.3d 91 ( 2017 )


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  •     United States Court of Appeals
    FOR THE DISTRICT OF COLUMBIA CIRCUIT
    Argued February 23, 2017                Decided May 9, 2017
    No. 14-3089
    UNITED STATES OF AMERICA,
    APPELLEE
    v.
    DONNELL CREWS, ALSO KNOWN AS DONNELL C. CREWS, ALSO
    KNOWN AS DARNELL C. CREWS,
    APPELLANT
    Appeal from the United States District Court
    for the District of Columbia
    (No. 1:11-cr-00372-1)
    Jerald R. Hess argued the cause for appellant. With him
    on the briefs was Charles B. Wayne.
    Nicholas P. Coleman, Assistant U.S. Attorney, argued the
    cause for appellee. With him on the brief were Elizabeth
    Trosman, Elizabeth H. Danello, and David B. Kent, Assistant
    U.S. Attorneys.
    Before: GARLAND, Chief Judge, and KAVANAUGH and
    PILLARD, Circuit Judges.
    Opinion for the Court filed by Circuit Judge PILLARD.
    2
    PILLARD, Circuit Judge: On September 21, 2011, three
    men approached Hugh Whitaker, an employee of a cash-in-
    transit service, as he exited a CVS in Washington, D.C. One
    of the men drew a handgun and demanded the cash Whitaker
    had just picked up from the CVS. Whitaker drew his own
    handgun and they exchanged gunfire. Whitaker retreated into
    the CVS unharmed. The three other men, one of whom had
    been shot, fled the scene. The police apprehended Donnell
    Crews and his half-brother, Anthony James, a couple of blocks
    away. After a witness identified Crews and James as two of
    the men who confronted Whitaker at the CVS, the police
    arrested them and charged them with attempted robbery. James
    agreed to a plea deal and testified against Crews and another
    alleged co-conspirator. Crews’s first trial ended with a hung
    jury. The government retried him, and the jury found him
    guilty.
    Crews now claims that two errors in the district court’s
    evidentiary rulings require us to vacate his conviction. First,
    Crews argues the district court erred by denying his motion for
    a mistrial after Joseph Brennan, an emergency room nurse,
    testified that a gravely injured alleged co-conspirator arrived at
    the hospital with “brain matter that was exposed.” But the
    district court remedied what little prejudice Brennan’s
    testimony might have produced by giving a curative instruction
    to the jury. Second, Crews contends that the district court erred
    by striking the entire testimony of his sole witness, Vakeema
    Ensley, who, after testifying in Crews’s support, asserted her
    constitutional privilege against self-incrimination near the
    outset of cross examination by the prosecution. Crews asserts
    that the district court should have struck only the testimony that
    related to the specific line of questioning corresponding to the
    cross-examination questions as to which Ensley invoked the
    privilege. But the record shows that Ensley asserted a blanket
    privilege against any further cross examination, and that Crews
    3
    made no contemporaneous objection to the evidentiary
    decisions the district court made in response. The district court
    did not plainly err by striking the entirety of her testimony.
    Detecting no reversible error on either point, we affirm.
    I.
    According to the government’s evidence, Anthony James
    and Appellant Donnell Crews met with two other men the
    evening before the attempted robbery, Kirk Dean (the brother
    of James’s best friend) and Antwon Crowder (Dean’s brother).
    That evening, Dean convinced James and Crews to participate
    in a planned robbery. The next day, Dean and Crowder met
    James at the home of Crews and James’s grandmother. When
    Crews’s fiancée, Vakeema Ensley, drove up in her car, Dean
    asked her for the keys, explaining that Crews had told him that
    he could drive it. At first Ensley refused, but then she
    surrendered the keys and stormed inside. Crews soon joined
    the others and the four men set off in Ensley’s car, donning
    latex gloves during the drive. Crowder parked the car around
    the corner from the CVS and waited in the car.
    Whitaker, an employee of Garda Cash Logistics, a secure
    cash-in-transit company, arrived at the CVS in an armored
    truck just before 11:00 am. While the driver, his co-worker
    James Jones, remained in the truck, Whitaker entered the CVS
    and accepted approximately $10,000 to be deposited. When
    Whitaker exited the store, three men—later identified as Dean,
    Crews, and James—confronted him. One of the men began to
    draw a gun from his waistband, but the gun momentarily
    slipped in his grasp, giving Whitaker enough time to draw his
    own handgun. The assailant fired at Whitaker, but missed.
    Whitaker returned fire as he retreated into the CVS, managing
    to shoot Dean in the jaw and elbow.
    4
    The three men then ran back to Ensley’s car where
    Crowder was waiting for them. Despite sustaining two gunshot
    wounds, Dean told the others he wanted to go back after
    Whitaker. Crews attempted to usher Dean into the car, urging
    him to go to the hospital. A brief struggle ensued, as Dean tried
    to pull away, but Crews managed to force Dean into the car.
    Crowder drove away with Dean beside him. Crews and James
    took off on foot, with James quickly discarding his jacket,
    scarf, and latex gloves in an alleyway as they ran. The police
    apprehended Crews and James a couple blocks from the CVS.
    Jones, the armored truck driver, later identified James and
    Crews as two of the participants in the crime, and the police
    arrested them both for attempted robbery.
    Meanwhile, Crowder raced to the hospital with Dean
    bleeding in the passenger seat. Traffic cameras captured a few
    images of the exterior of Ensley’s car speeding through the
    neighborhood, but no other evidence revealed what happened
    during that ride. By the time Crowder reached the hospital,
    Dean had sustained another gunshot wound, this time to his
    head. Crowder pulled into the hospital’s ambulance parking
    area, exited the car, used his shirt to wipe fingerprints from the
    door, and hurried away. Emergency room nurse Joseph
    Brennan discovered Dean slumped in the passenger seat in
    bloody clothing. At trial, the government and the defendants
    stipulated that Dean later died as a result of a gunshot wound
    unrelated to the attempted robbery—presumably the
    unexplained gunshot wound that he sustained while in transit
    from the CVS to the hospital. The police later arrested
    Crowder in connection with the attempted robbery. The police
    recovered physical evidence near the CVS and in Ensley’s car,
    including James’s jacket, scarf, and gloves, and a piece of a
    latex glove with Crews’s DNA on the inside surface.
    5
    The government jointly tried Crews and Crowder. The
    first trial ended with a hung jury, and re-trial proceeded before
    the same district judge. The government called Brennan, the
    emergency room nurse, as a witness at both trials. At the first
    trial, Brennan testified that he discovered Dean in the passenger
    seat of the car, covered in blood, with a head wound and matted
    hair. But at the second trial Brennan added that he could see
    “brain matter that was exposed” as he examined Dean in the
    car. Supp. App. 234. Crowder’s counsel objected. He noted
    that the parties had carefully avoided discussing the gunshot
    wound that killed Dean. He objected that Brennan’s reference
    to exposed brain matter might appear to contradict James’s
    testimony that, shot only in the elbow and jaw, Dean ran from
    the CVS back to the car. The later gunshot was not at issue in
    this case, but Crowder’s counsel argued that the jury would
    erroneously infer that Dean’s apparently much more serious,
    “drop-and-fall” head wound happened during the attempted
    robbery, contradicting testimony about Dean’s actions after
    suffering lesser wounds at the CVS and prejudicing the
    defense. Supp. App. 237.
    Having heard from all counsel and at the defense’s request,
    the district judge agreed to address any potential confusion
    from Brennan’s testimony by reminding the jury that Dean died
    from a gunshot wound unrelated to the attempted robbery. 
    Id. at 237-42.
    After cross examination, Crews and Crowder
    moved for a mistrial, arguing that it would be impossible to
    “un-ring the bell” after the jury heard Brennan’s graphic
    testimony. 
    Id. at 241.
    The district judge denied the motion,
    but he instructed the jurors to disregard the testimony they
    heard “about brain matter and matted, bloody hair,” and urged
    them not to allow sympathy or passion to affect their judgment.
    Trial Tr. 123-24, Feb. 20, 2014.
    6
    Crews’s counsel did not attempt to rebut the government’s
    evidence placing him near the CVS when the attempted
    robbery occurred. Instead, counsel suggested during his
    opening statement that Crews knew about the planned robbery,
    sought to avoid participating, but wanted to do so in a way that
    would not cause the others to think he had deliberately
    abandoned them. In support of that narrative, the defense
    called Crews’s fiancée, Vakeema Ensley, as a witness at both
    trials to testify how Crews occupied himself elsewhere on the
    morning of the robbery. Ensley testified that, during the
    morning before the attempted robbery, she and Crews drove to
    Beltsville, Maryland to buy a part for her mother’s car. While
    in Maryland, a surveillance camera captured Crews entering a
    7-Eleven. After running the errand, Ensley and Crews drove
    into the District, because they both had a shift scheduled later
    that day with the Greater Washington Urban League where
    they worked. They first headed to Crews’s grandmother’s
    house. As they approached the house, Crews asked Ensley to
    drop him off a few blocks away to meet his brother. After she
    dropped him off, Ensley parked her car outside the
    grandmother’s home, entered and left her keys on the radiator
    by the front door, and went upstairs to lie down briefly to wait
    for Crews.
    During her direct examination Ensley testified that she did
    not know Antwon Crowder or Kirk Dean before the arrests. At
    the first trial, the government attempted to impeach Ensley by
    asking about her grand jury testimony, in which she referred to
    “Kirk” as Crews’s friend. She explained that she only learned
    that Crews and Kirk Dean were friends after the police arrested
    Crews. At the second trial, Ensley once again disavowed any
    prior acquaintance with Crowder or Dean. This time, the
    government focused on Crowder. When the prosecutor asked
    Ensley if she had ever received a call from Crowder, she
    answered that she had not. The government then began to ask
    7
    Ensley about a recorded phone conversation between her and
    Crews while he was detained awaiting trial, but before Crowder
    had been arrested. In the recording, Ensley is heard telling
    Crews that she had received a call from Crowder which she
    returned. But before the government could ask about the
    recording, the district judge interrupted the cross examination
    and held a sidebar. Once it became clear that the government
    believed Ensley had perjured herself by denying pre-arrest
    acquaintance with Crowder, the court appointed an attorney to
    represent her.
    After consulting with Ensley, the government, and defense
    counsel, Ensley’s attorney acknowledged that there was “a
    potential problem based upon her earlier testimony” because
    the “jail call transcript” arguably contradicted her testimony
    that she had never received a phone call from Crowder. Trial
    Tr. 107, March 5, 2014. “But more importantly,” he added,
    “it’s my impression that this is not the only source of potential
    impeachment that they may have for Ms. Ensley.” 
    Id. Ensley’s attorney
    also said the Government took the position that the
    testimony Ensley gave before the grand jury and at the first trial
    “may not have been entirely accurate.” 
    Id. Because of
    that, the
    attorney explained, Ensley decided that “she’s going to assert
    her Fifth [Amendment privilege against self-incrimination,]
    . . . and she will not answer any further questions.” 
    Id. at 108.
    Ensley confirmed on the record that she wished to assert her
    constitutional privilege and acknowledged that by doing so she
    was giving up her right to testify. Supp. App. 400-01.
    The parties then turned to what to do about Ensley’s direct
    testimony. Crews’s counsel urged the district judge not to
    require Ensley to assert her Fifth Amendment privilege in the
    presence of the jury. The government, for its part, encouraged
    the district judge to strike all of Ensley’s testimony—the direct
    testimony as well as the cross examination. Crews’s counsel
    8
    did not state an objection to the government’s request, but
    raised a concern that the jurors might infer that they should also
    ignore the surveillance video taken outside the Maryland 7-
    Eleven, which placed Crews in the suburbs doing errands with
    Ensley on the morning of the robbery.
    The district judge allowed the 7-Eleven security video to
    remain in the record because the parties had stipulated to its
    authenticity, and did not require Ensley to assert her privilege
    before the jury. With those issues resolved, the district judge
    instructed the jury to disregard the entirety of Ensley’s
    testimony. After deliberating, the jury found Crews guilty of
    attempted robbery.
    II.
    On appeal, Crews argues that the district court erred in
    handling Brennan’s and Ensley’s testimony. He contends that
    the district court should have granted his motion for a mistrial
    after Brennan’s testimony, or at least should have considered a
    remedy more limited than striking all of Ensley’s testimony
    after she asserted her privilege against self-incrimination. We
    disagree on both points and hold that the district court did not
    err in its treatment of either witness’s testimony.
    A.
    Crews claims that the district court abused its discretion by
    denying his motion for a mistrial after emergency room nurse
    Joseph Brennan testified that Dean appeared gravely wounded,
    and in particular that he had “what looked like brain matter that
    was exposed.” Supp. App. 234. Crews argues that the district
    judge’s curative instructions did not mitigate the prejudice to
    him from Brennan’s “brain matter” testimony. We review the
    district court’s denial of Crews’s motion for a mistrial for abuse
    of discretion. United States v. Gartmon, 
    146 F.3d 1015
    , 1027
    9
    (D.C. Cir. 1998). “A mistrial is a severe remedy—a step to be
    avoided whenever possible, and one to be taken only in
    circumstances manifesting a necessity therefor.” United States
    v. McLendon, 
    378 F.3d 1109
    , 1112 (D.C. Cir. 2004) (quoting
    United States v. Clarke, 
    24 F.3d 257
    , 270 (D.C. Cir. 1994)). A
    mistrial is warranted if inadmissible evidence is erroneously
    presented to the jury that is so “highly prejudicial” that the jury
    cannot reasonably be expected to ignore it. United States v.
    Eccleston, 
    961 F.2d 955
    , 961-62 (D.C. Cir. 1992). On review,
    we must therefore determine “the extent to which the defendant
    was unfairly prejudiced.” 
    McLendon, 378 F.3d at 1112
    . To
    that end, we “consider a number of factors, including the force
    of the unfairly prejudicial evidence, whether that force was
    mitigated by curative instructions, and the weight of the
    admissible evidence that supports the verdict.” 
    Id. All three
    of these factors weigh against Crews. First,
    Brennan’s testimony, while graphic, had only the slightest
    prejudicial potential. Crews contends that the testimony may
    have led the jury to conclude that Crews callously left Dean to
    die. Alternatively, he suggests that the jury may have believed
    that Dean became gravely injured during the attempted robbery
    (rather than after James and Crews left the scene), which would
    contradict James’s testimony that Dean was able to run back to
    the car. But Brennan’s “comment was brief, and, viewed in
    context, less harmful to [Crews] than [he] maintains.” United
    States v. Wheeler, 
    753 F.3d 200
    , 207 (D.C. Cir. 2014).
    Multiple witnesses testified that all three men ran from the
    CVS. Thus, the only plausible inference is that Dean sustained
    his fatal injury after he and Crowder separated from Crews and
    James. By the same token, the jury had no reason to believe
    that Crews abandoned Dean to die; in fact, the evidence was
    uniformly to the contrary. James testified that after he, Dean,
    and Crews ran to the car, Dean turned to go back to re-engage
    in a firefight with Whitaker. It was only because Crews
    10
    physically prevented Dean from doing so and forced him into
    the getaway car that Dean was taken to the hospital.
    Second, the district judge mitigated any prejudice from
    Brennan’s testimony by his curative instructions to the jury.
    We generally presume that “a jury will follow an instruction to
    disregard inadmissible evidence inadvertently presented to it”
    absent “an overwhelming probability that the jury will be
    unable to follow the court’s instructions.” Greer v. Miller, 
    483 U.S. 756
    , 766 n.8 (1987). At the close of Brennan’s testimony,
    the district judge reminded the jurors that Dean died from an
    unrelated gunshot wound and instructed them to “disregard the
    testimony [they] heard about brain matter and matted, bloody
    hair.” Trial Tr. 123-24, Feb. 20, 2014. The district judge also
    warned the jurors not to allow sympathy or passion to affect
    their judgment. Crews claims those instructions did not cure
    the prejudice because they were “neither immediate nor
    emphatic.” Appellant Br. 29. But the district court gave the
    curative instruction at the close of Brennan’s testimony. And
    the quality of the instruction was consistent with curative
    instructions that this court has previously viewed as sufficiently
    emphatic. Compare Trial Tr. 123-24, Feb. 20, 2014, with
    
    McLendon, 378 F.3d at 1113
    (characterizing the district court’s
    instruction “reminding the jury . . . to disregard” the testimony
    as “stern[]”).
    Third, the government provided ample evidence to support
    the jury’s verdict, making it exceedingly unlikely that
    Brennan’s testimony that he saw “brain matter” changed a
    possible acquittal to a conviction. See 
    McLendon, 378 F.3d at 1112
    . Crews argues otherwise. He likens the prosecution’s
    case against him to the evidence presented in United States v.
    Eccleston, 
    961 F.2d 955
    . There, we vacated the conviction of
    a defendant after the jury heard inadmissible hearsay testimony
    related to a fact central to the prosecution’s case: whether the
    11
    defendant currently lived at his mother’s house when the police
    discovered drugs and weapons inside. 
    Id. at 960-61.
    The
    defendant claimed he had moved out of the house and was
    living in a nearby apartment. But an investigating officer
    testified that he stopped three men walking toward the house
    who told him they were on their way to purchase drugs from
    the defendant. The district judge instructed the jury to
    disregard the hearsay testimony, but denied the defendant’s
    motion for a mistrial. We reversed, explaining that “the danger
    of prejudice” was particularly severe “because of the weakness
    of the government’s case,” which relied on “wholly
    circumstantial” evidence, including ambiguous statements by
    the defendant’s parents and suggestions that the defendant
    lived at his mother’s house in the past. 
    Id. The prejudicial
    hearsay thus could not be cured, necessitating a mistrial.
    Here, by contrast, the evidence that Crews engaged in the
    attempted robbery was direct and strong. Crews claims that the
    evidence only placed him in the general vicinity of the CVS.
    But that ignores James’s testimony that Crews came with him
    and Dean to the confrontation with Whitaker at the CVS.
    Jones, the driver of the Garda armored truck, also identified
    Crews after police apprehended him a few blocks from the
    store as one of the three men who participated in the robbery
    attempt. And the police discovered Crews’s DNA on the inside
    of a piece of a latex glove found in Ensley’s car. Noting that
    the first trial ended in a mistrial, Crews suggests that Brennan’s
    graphic testimony at the second trial tipped the jury against
    him, but “the fact that [the] case previously ended in a mistrial
    is not sufficient to establish that the case was close.”
    
    McLendon, 378 F.3d at 1115
    . Given the weight of the evidence
    against him, there is no reasonable chance that Brennan’s
    testimony had a material effect on the jury.
    12
    B.
    We are also unpersuaded by Crews’s argument that the
    district court violated his constitutional right to call witnesses
    in his defense when it struck the entire testimony of his sole
    witness, Vakeema Ensley, in response to her invocation of her
    privilege against self-incrimination. Ensley initially invoked
    the privilege in response to a cross-examination question about
    whether she knew Antwon Crowder before the arrests but,
    following colloquy among counsel and the court, Ensley
    received appointed counsel and asserted a blanket privilege
    against any further testimony. The district court, at the
    government’s request, responded by striking all of Ensley’s
    direct testimony. Crews’s trial counsel requested that Ensley
    not have to invoke the privilege on the stand and that the 7-
    Eleven security video remain in evidence, but did not object to
    the striking of Ensley’s direct testimony.
    Having failed to argue in the district court that Ensley’s
    direct testimony could be retained consistently with her
    invocation of the Fifth Amendment, Crews now faults the
    district court for failing to inquire sua sponte into the scope of
    Ensley’s privilege. Under our precedent, blanket assertions of
    the privilege against self-incrimination are disfavored. See
    United States v. Thornton, 
    733 F.2d 121
    , 125-26 (D.C. Cir.
    1984). We have made clear, however, that “the district court’s
    failure to inquire sua sponte whether the witness was entitled
    to assert a blanket privilege” does not result in plain error if the
    district court had some basis in the record supporting the
    witness’s broad assertion. United States v. Ortiz, 
    82 F.3d 1066
    ,
    1073 (D.C. Cir. 1996).
    Despite the absence of a contemporaneous objection,
    Crews urges us to review the decision for abuse of discretion
    rather than plain error, relying primarily on United States v.
    13
    Wilson, 
    605 F.3d 985
    (D.C. Cir. 2010). In Wilson, we reviewed
    the district court’s evidentiary ruling for abuse of discretion
    when it was “apparent from the context” of the district court’s
    reasoning that the defendant had raised a Confrontation Clause
    claim. 
    Id. at 1011-12.
    But it is not “apparent from the context”
    here that Crews raised a constitutional objection to the district
    court’s decision to allow Ensley’s broad invocation of her
    constitutional privilege and then remedy any prejudice to the
    government by striking her testimony. We therefore review for
    plain error. See 
    Ortiz, 82 F.3d at 1072-73
    . To prevail, Crews
    must show “(1) that there was an error, (2) that the error was
    clear or obvious, (3) that it affected [his] substantial rights, and
    (4) that it seriously affected the fairness, integrity, or public
    reputation of the judicial proceedings.” United States v.
    Gooch, 
    665 F.3d 1318
    , 1332 (D.C. Cir. 2012) (citing United
    States v. Olano, 
    507 U.S. 725
    , 732-37 (1993)).
    Here, the first two prongs of the plain error test—whether
    there was an error that was clear or obvious—are dispositive.
    The parties agree that we should assess the district court’s
    decision to strike Ensley’s testimony under the standard the
    Second Circuit used in United States v. Cardillo, 
    316 F.2d 606
    (2d Cir. 1963). In that case, a government witness testified on
    direct examination but avoided being impeached during cross
    examination because he invoked his privilege against self-
    incrimination. 
    Id. at 611-13.
    The defendants’ attorneys
    unsuccessfully urged the district court to allow them to proceed
    with cross examination or, in the alternative, that the court
    should strike the direct testimony. 
    Id. at 611-12.
    In holding
    that the district court’s handling of the privilege was reversible
    error, the Second Circuit developed an analytic rubric that other
    courts have found useful.
    To illustrate how the measures a court must take to avoid
    prejudice vary by context, the Cardillo court distinguished
    14
    three situations in which a witness might refuse to respond to
    questions, and the corresponding cures: First, refusal to
    respond where “the answer would have been so closely related
    to the commission of the crime that the entire testimony of the
    witness should be stricken”; second, refusal to answer
    questions “connected solely with one phase of the case in
    which event a partial striking might suffice”; and, third, refusal
    to answer questions involving “collateral matters or cumulative
    testimony concerning credibility which would not require a
    direction to strike,” but could instead be handled by issuing a
    curative instruction to the jury. 
    Id. at 613.
    The court explained
    that a “distinction must be drawn between cases in which the
    assertion of the privilege merely precludes inquiry into
    collateral matters which bear only on the credibility of the
    witness and those cases in which the assertion of the privilege
    prevents inquiry into matters about which the witness testified
    on direct examination.” 
    Id. at 611.
    Even as it reversed the
    district court’s failure to strike the witness testimony, the court
    of appeals stressed that not every refusal to answer “requires
    the striking of [a witness’s] testimony or a part thereof.” 
    Id. at 613.
    Other circuits have embraced Cardillo, see, e.g., United
    States v. Gary, 
    74 F.3d 304
    , 310 (1st Cir. 1996); Denham v.
    Deeds, 
    954 F.2d 1501
    , 1503 (9th Cir. 1992); Carlos v. Wyrick,
    
    753 F.2d 691
    , 693 (8th Cir. 1985), but we have not yet had
    occasion to do so.
    We note at the outset the potential confusion engendered
    by Crews’s reliance on Cardillo, the facts of which do not
    cleanly map onto those in Crews’s case. The defendants in
    Cardillo sought to cross examine a government witness who
    invoked his privilege against 
    self-incrimination. 316 F.2d at 611-12
    . Allowing the witness to avoid cross examination
    without striking any of his direct testimony would have
    impaired the defendants’ Sixth Amendment right to confront
    witnesses against them. But here, the tables are turned. It is
    15
    the government that sought to cross examine a defense witness
    who invoked her privilege against self-incrimination. The
    potential prejudice to the government from preventing its cross
    examination of Ensley, unlike the prejudice to the defendants
    in Cardillo, has no constitutional dimension. Whereas in
    Cardillo the defendants’ confrontation rights required that
    witness testimony be stricken, Crews argues the inverse: that
    his constitutional right to present witnesses in his favor forbade
    the court from striking Ensley’s testimony. Cardillo’s
    underlying analysis sheds light on Crews’s claim, but it does
    not pick up on Crews’s important point about his constitutional
    right to present witness testimony in his defense. See 
    Denham, 954 F.2d at 1503
    (“Cardillo and cases like it do not address the
    tension inherent, when the witness is defendant’s, between the
    prosecution’s need to cross-examine and the defendant’s right
    to call witnesses on her own behalf.”).
    Even assuming, as both parties do, that the Cardillo
    framework applies, it does not support Crews’s claim of error.
    Crews would have us treat his claim under the third category,
    viewing Ensley’s assertion of privilege as preventing cross
    examination only into the “collateral” matter of her
    
    “credibility.” 316 F.2d at 613
    . The court thus erred, says
    Crews, by striking Ensley’s entire testimony rather than
    retaining it with curative jury instructions. Appellant Br. 19.
    Cardillo’s analysis of credibility issues is more nuanced
    than Crews suggests. It does not treat all questions concerning
    credibility as “collateral,” nor does it suggest that the related
    testimony of a witness who refuses to answer questions going
    only to credibility need never be stricken. That would make no
    sense; witness credibility is sometimes the linchpin of an entire
    defense. See Harbor Ins. Co. v. Schnabel Found. Co., 
    946 F.2d 930
    , 935 (D.C. Cir. 1991). Rather, Cardillo’s third category
    refers to privilege invocations that defeat a defendant’s ability
    16
    to elicit “cumulative testimony concerning credibility,” where
    the type of testimony concerns the “general unsavory character
    of the witness.” 
    Cardillo, 316 F.2d at 613
    (emphasis added).
    Indeed, the Cardillo court itself found reversible error in the
    trial court’s failure to strike related testimony where the
    privilege claim prevented the defendant from challenging the
    witness’s credibility through cross examination that “might
    have established untruthfulness with respect to specific events
    of the crime charged.” 
    Id. Ensley’s invocation
    of her privilege against self-
    incrimination fell within Cardillo’s first category, not its third.
    The government attempted not merely to question Ensley’s
    general credibility by, for example, asking about her own
    involvement in crime or her reputation for truthfulness, see 
    id. at 612-13,
    but sought to question her regarding “specific events
    of the crime charged,” 
    id. at 613,
    namely, the likelihood that
    Ensley willingly gave her car keys to the alleged co-
    conspirators. If the jury were to credit Ensley’s testimony that
    she did not know Dean and Crowder, it would be less likely to
    believe James’s testimony that Ensley loaned them her car.
    The government’s questions about her knowledge of Crowder
    thus related to an event the government sought to prove.
    Crews contends that the jury should have been able to rely
    on the bulk of Ensley’s direct testimony, as it had at the first
    trial. But he fails to acknowledge that Ensley did not limit her
    invocation of the privilege. Ensley’s court-appointed counsel
    not only noted that “there is a jail call transcript which
    arguably” contradicted her testimony about Crowder, but he
    also told the district judge that his conversations with the
    prosecution left him with the impression that the government
    had other sources of “potential impeachment” evidence. Supp.
    App. 392. In view of the government’s position that Ensley
    had also perjured herself before the grand jury and during her
    17
    testimony in the previous trial, however, Ensley’s counsel
    stated that “she will not answer any further questions.” Supp.
    App. 393 (emphasis added). Ensley likewise acknowledged
    without qualification that she wished to give up her right to
    testify.
    Finally, in support of his claim that striking Ensley’s
    testimony in its entirety was error, Crews offers alternatives
    less damaging to his defense that he contends the district court
    could have explored, including reading to the jury the transcript
    of Ensley’s testimony from the first trial. See Appellant Br. 21-
    24. Crews does not argue that the Constitution required the
    district court to employ the alternatives he suggests, but raises
    them to demonstrate that the “district court had multiple ways
    in which it could have reconciled the government’s right to
    cross examine Ensley with Crews’[s] constitutional rights to
    call witnesses and present a defense.” Appellant Reply Br. 13-
    14. We are willing to assume that the district court had viable
    alternatives, but Crews did not suggest any at trial. The court
    did not plainly err by failing to consider them sua sponte. See
    
    Ortiz, 82 F.3d at 1072-73
    ; see also United States v. Hargrove,
    No. 99-3298, 
    2000 WL 1227895
    , at *2 n.1 (10th Cir. Aug. 30,
    2000) (“That the district court did not give a limiting
    instruction or consider ‘evidentiary alternatives’” did not
    establish reversible error if the defendant “neither requested an
    instruction nor presented ‘alternatives’ during the course of
    trial.”).
    We acknowledge that the district court could have done
    more to test the precise basis and scope of Ensley’s invocation
    of her privilege, but the court’s failure to inquire further is
    unsurprising where none of the parties asked it to do so at the
    time. On plain error review, we cannot say it was “clear or
    obvious,” 
    Gooch, 665 F.3d at 1332
    , that Ensley had asserted
    her Fifth Amendment privilege against self-incrimination only
    18
    with respect to certain, limited questions. Thus, the district
    court did not plainly err by excluding all of her direct
    testimony.
    *   *    *
    Because the district court did not commit reversible error
    by denying Crews’s motion for a mistrial or striking Ensley’s
    testimony, we affirm the judgment of conviction.
    So ordered.