United States v. Kevin Fuertes , 805 F.3d 485 ( 2015 )


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  •                              PUBLISHED
    UNITED STATES COURT OF APPEALS
    FOR THE FOURTH CIRCUIT
    No. 13-4755
    UNITED STATES OF AMERICA,
    Plaintiff − Appellee,
    v.
    KEVIN GARCIA FUERTES, a/k/a Kerlin Esquivel−Fuentes, a/k/a
    Flaco,
    Defendant − Appellant.
    No. 13-4931
    UNITED STATES OF AMERICA,
    Plaintiff − Appellee,
    v.
    GERMAN DE JESUS VENTURA, a/k/a Chino, a/k/a Chalo, a/k/a
    Pancho, a/k/a Chaco, a/k/a Oscar,
    Defendant − Appellant.
    Appeals from the United States District Court for the District
    of Maryland, at Baltimore.   William D. Quarles, Jr., District
    Judge. (1:10−cr−00770−WDQ−2; 1:10−cr−00770−WDQ−1)
    Argued:   May 13, 2015                    Decided:   August 18, 2015
    Before KING and   KEENAN,   Circuit   Judges,   and   DAVIS,   Senior
    Circuit Judge.
    No. 13-4755 affirmed; No. 13-4931 affirmed in part and vacated
    and remanded in part by published opinion.    Senior Judge Davis
    wrote the opinion, in which Judge King and Judge Keenan joined.
    ARGUED: Nicholas J. Vitek, VITEK LAW LLC, Baltimore, Maryland;
    Michael Daniel Montemarano, MICHAEL D. MONTEMARANO, P.A.,
    Columbia, Maryland, for Appellants. Sujit Raman, OFFICE OF THE
    UNITED STATES ATTORNEY, Greenbelt, Maryland, for Appellee.    ON
    BRIEF: Rod J. Rosenstein, United States Attorney, P. Michael
    Cunningham, Rachel M. Yasser, Assistant United States Attorneys,
    OFFICE OF THE UNITED STATES ATTORNEY, Baltimore, Maryland, for
    Appellee.
    2
    DAVIS, Senior Circuit Judge:
    These appeals arise from the prosecution of two members of
    an enterprise engaged in interstate prostitution.                             Following a
    two-week trial, a jury convicted Appellants Kevin Garcia Fuertes
    (“Fuertes”)         and     German    de     Jesus        Ventura        (“Ventura”)      of
    conspiracy      to     commit,      and    commission       of,     a    number     of   sex
    trafficking         and   related     offenses.           On   appeal,       Fuertes     and
    Ventura make four assertions of error, two individually and two
    jointly, regarding evidentiary rulings, jury instructions, and
    the sufficiency of the evidence.                 For the reasons stated below,
    we affirm the Fuertes judgment in No. 13-4755.                               In Ventura’s
    appeal, No. 13-4931, applying plain error review, we conclude
    that the conviction under 18 U.S.C. § 924(c) for possession and
    use   of   a    firearm      in   relation       to   a    crime        of   violence    was
    erroneous because, we hold, sex trafficking by force, fraud, or
    coercion,      in     violation      of     18    U.S.C.       §    1591(a),        is   not
    categorically a crime of violence.                    Accordingly, we vacate the
    conviction on Count Seven and remand for entry of judgment of
    acquittal      on    that   count    but    we   otherwise         affirm     the   Ventura
    judgment.
    I.
    A.
    The trial evidence was amply sufficient to permit the jury
    to find the following facts.
    3
    By    early    2008,     Ventura    was    operating         brothels    in   the
    Hispanic      community       in   Annapolis,     Maryland.           Fuertes    helped
    Ventura run the brothels, as well as advertise the prostitution
    business.      To maintain control over the sex trade, Fuertes and
    Ventura     threatened       perceived     competitors       with    violence.       For
    example, in March 2008, Ventura told Alberto Hernandez Campos
    (“Campos”) about trouble he was having with another Annapolis-
    area       pimp,     Ricardo       Humberto      “el    Pelon”        Rivas     Ramirez
    (“Ramirez”).         Then, to emphasize the seriousness of the matter,
    Fuertes showed Campos a handgun. 1
    Following this encounter, on September 13, 2008, Ramirez
    was murdered.         Investigators learned that Ramirez had received
    threatening phone calls from two different phone numbers (one
    phone number ending in 5015, the other in 1397) some time prior
    to his murder.        Police sought subscriber information for the two
    phone      numbers,    and    entered     them   into   a    database     for    future
    investigative purposes.
    On September 24, 2008, Fuertes was arrested following an
    unrelated      traffic        violation.         When       he   provided       booking
    information, Fuertes gave a phone number that matched the 5015
    1
    Ventura’s operation also adversely affected individuals
    who happened simply to live in close proximity to the brothels.
    One family began receiving threatening phone calls and had their
    home and car vandalized after offering assistance to one of
    Ventura’s prostitutes.
    4
    number from which Ramirez had received threatening phone calls.
    Fuertes was arrested again the next day, this time on an open
    warrant.        At    the    time     of    this       arrest,      Fuertes    had     in   his
    possession a cellular phone with the 5015 number, as well as
    business cards advertising prostitution services.
    After    his     September      25        arrest,      Fuertes      consented      to   a
    search of his home in Annapolis, where officers found evidence
    that the residence was being used as a brothel.                               In the living
    room, investigators found a cellular phone, which an occupant of
    the    house    permitted       them        to       examine.        The     contacts       list
    contained      the    1397     number       from          which    Ramirez    had    received
    threatening calls.           Police also located a physical address book,
    which listed two phone numbers for “Pancho”: the 1397 number, as
    well   as   another      number       ending         in    0903.      After    obtaining       a
    warrant,       police       learned        that      Ventura       was     listed    as     the
    subscriber for the phone number ending in 0903.                                Witnesses in
    the    investigation          eventually             identified          Ventura     by      the
    aliases/nicknames of “Pancho” and “Chino,” among others.
    Suspecting that Ventura and Fuertes were responsible for
    Ramirez’s      murder,       investigators            continued       to     monitor      their
    activities.          Agents learned that Ventura operated brothels at
    several locations in Annapolis, as well as in Easton, Maryland
    and Portsmouth, Virginia.                  Ventura arranged for prostitutes to
    work in the brothels from Monday through Sunday.                             Typically, the
    5
    women communicated with Ventura by phone, then traveled by bus
    to   Washington,   D.C.,       where    they   met   Ventura,    or   one    of   his
    employees, and drove to the brothel where they worked for the
    week.     The   prostitutes        provided    fifteen      minutes   of    sex   for
    thirty dollars, and were paid half of the gross receipts, less
    expenses for food, hygiene products, and other expenses of the
    trade.    One woman, Margarita Santiago Laona, testified that she
    spoke with Ventura by telephone while she was in New Jersey, and
    then traveled by bus to Washington, D.C., where he met her and
    took her to a nearby brothel.
    Rebeca Duenas Franco (“Duenas”), another woman employed by
    Ventura, had a particularly violent history with him.                        On the
    one hand, he helped extricate her from the control of another
    pimp.     He    also    had    a   relationship      with    Duenas—indeed,       she
    believes he is the father of her son—and provided her with a
    place to live.         On the other hand, Ventura compelled Duenas to
    engage in prostitution by violence and threats of violence, and
    held    her   against    her    will.     Ventura     reintroduced     Duenas      to
    prostitution by giving her a box of condoms, telling her to “go
    to work,” and beating her “several times” when she resisted.
    J.A. 1186.      On one occasion, when Duenas refused to have sex
    with an African-American client, Ventura beat her with a belt.
    On another occasion, when Duenas refused to perform a sex act
    6
    with        an   object,        Ventura       pushed   her    down       onto      rocky    ground. 2
    Ventura also discharged a gun in her presence.                                      Unlike other
    women working for Ventura, Duenas did not receive any money from
    her services as a prostitute.
    At        trial,        Duenas        testified      that        Ventura         threatened
    competitor          pimps,       including       Ramirez,         and    that      she     witnessed
    Ventura and Fuertes celebrating Ramirez’s murder.                                       Duenas also
    recounted an incident when Ventura assaulted a male employee who
    threatened          to     go    to     the    police.        During       another         incident,
    Ventura beat a prostitute who he believed had sent people to rob
    one of his brothels.                    According to Duenas, Fuertes was present
    when        Ventura      beat     the     prostitute,        as    well       as   at    least     one
    occasion when Ventura beat her. 3
    On        March   25,     2009,        police   again      arrested         Fuertes    at    an
    apartment in Annapolis, and found evidence that the residence
    was being used as a brothel.                      During a protective sweep, police
    found        Duenas      and     another       woman   hiding       in    a     bedroom      closet.
    2
    During the trial, Dr. Mary-Theresa Baker, a physician of
    twenty-five years and then-director of the Baltimore Child Abuse
    Center, testified about her forensic medical examination of
    Duenas. Dr. Baker testified that Duenas’ explanations as to how
    she received certain injuries were generally consistent with her
    own observations during the examination.
    3
    On direct examination, Duenas indicated that Fuertes was
    at the house when Ventura beat her with a belt.         But, on
    redirect, she clarified that Fuertes had in fact witnessed the
    beating.
    7
    Meanwhile, a search of Fuertes revealed $696 in cash, a wallet
    with miscellaneous papers, including a piece of paper listing
    the 0903 phone number associated with Ventura, and a cellphone.
    Following his 2009 arrest, Fuertes relocated to Virginia because
    he   had    been     entered     into    deportation      proceedings            by     the
    Department of Homeland Security.
    On September 24, 2009, police arrested Ventura in Annapolis
    on an open warrant from the District of Columbia.                     A search of
    Ventura revealed $859 in cash and documents detailing how many
    customers     each    prostitute        had   serviced    in    the   past            week.
    Ventura    also     had    his   Maryland     driver’s    license,       a       Mexican
    license that featured his picture but a different name, and two
    cell phones.         Despite having two cell phones on his person,
    Ventura told the police that he did not have a phone number.                             He
    claimed that he had found one cell phone at the mall, and that
    he was borrowing the other from a taxicab driver whose name he
    did not know.        A later search revealed that one of the phones
    had the 0903 number.
    Months       later,    on   February      17,    2010,    Annapolis          police
    responded to a 911 call for a possible robbery.                    The call came
    from a phone number which, police eventually learned, was the
    number Ventura used after his 2009 arrest.                    The police located
    the site of the robbery, which turned out to be another brothel
    operated    by     Ventura.      Maximilliano        Zelaya    Repalo,       a    former
    8
    employee of Ventura, testified at trial that he committed the
    robbery      because       he   had   not     been      paid     for    his       work   at   the
    brothel.
    In May 2010, police discovered that Ventura was operating
    another brothel in Easton.                   On July 7, 2010, they executed a
    search warrant at the brothel and arrested two individuals who
    were        working        there.            Law       enforcement           continued         its
    investigation, and on August 2, 2010, learned that Ventura was
    transporting          a    prostitute        from      Maryland        to     a     brothel    in
    Portsmouth.
    Back    in     Annapolis,        on       November       3,     2010,       several     men
    believed to be operating at Ventura’s behest seriously assaulted
    competitor-pimp            Hector      Fabian          Avila.           Law        enforcement,
    therefore, decided to bring its investigation to a close, and on
    November 15, 2010, arrested Ventura in his home.                                   Fuertes was
    also charged but was not arrested at that time.
    B.
    On    November       29,     2011,    a     federal      grand       jury    returned     a
    superseding         indictment,        charging         Fuertes        and        Ventura     with
    conspiracy to transport an individual in interstate commerce for
    the purpose of prostitution, in violation of 18 U.S.C. § 371
    (Count       One);        transportation          of    individuals           in     interstate
    commerce for the purpose of prostitution, in violation of 18
    U.S.C. § 2421 (Count Two); and sex trafficking by force, fraud,
    9
    or coercion, in violation of 18 U.S.C. § 1591(a) (Count Six).
    Ventura was also separately charged with coercing or enticing an
    individual to travel in interstate commerce for the purpose of
    prostitution, in violation of 18 U.S.C. § 2422(a) (Count Three);
    transportation        of   individuals       in   interstate        commerce     for    the
    purpose    of    prostitution,        in     violation       of    18   U.S.C.    §    2421
    (Counts Four and Five); and possession and use of a firearm in
    relation   to    a     crime    of    violence—namely,            sex   trafficking     by
    force, fraud, or coercion—in violation of 18 U.S.C. § 924(c)
    (Count Seven).
    After     the    district      court    denied     most      of   their    pretrial
    motions, Fuertes and Ventura proceeded to trial.                        The jury found
    Ventura guilty of all counts and Fuertes guilty of Count One and
    that part of Count Six based on events occurring subsequent to
    December 24, 2008.            It found Fuertes not guilty of Count Two.
    The   district        court    denied      Fuertes     and    Ventura’s     post-trial
    motions for judgment of acquittal or a new trial, and sentenced
    Ventura to 420 months’ imprisonment and Fuertes to 235 months’
    imprisonment.         These timely appeals followed.
    II.
    A.
    Fuertes and Ventura contend that the district court erred
    in admitting evidence of violent acts and threats of violence
    against competitor pimps because: (1) such evidence was offered
    10
    for no purpose other than to establish their bad character; (2)
    the evidence was not relevant, as it did not make it more likely
    that they actually committed the sex trafficking offenses for
    which   they   were     charged;        and    (3)    even    if     the    evidence    was
    relevant, its probative value was far outweighed by the danger
    of unfair prejudice.          We disagree.
    Rule 404(b) of the Federal Rules of Evidence “prohibits
    evidence of ‘other crimes, wrongs, or acts’ solely to prove a
    defendant’s bad character, but ‘[s]uch evidence . . . may be
    admissible     for     other      purposes,          such    as     proof    of    motive,
    opportunity, intent, preparation, plan, knowledge, identity, or
    absence of mistake or accident.’”                    United States v. Byers, 
    649 F.3d 197
    , 206 (4th Cir. 2011) (quoting United States v. Basham,
    
    561 F.3d 302
    , 326 (4th Cir. 2009)).                     The rule is “inclusive,”
    “admitting     all    evidence     of    other       crimes    or    acts    except    that
    which tends to prove only criminal disposition.”                            United States
    v.   Young,    
    248 F.3d 260
    ,     271–72        (4th    Cir.    2001)       (internal
    quotation marks omitted).               To be admissible under Rule 404(b),
    the proffered “bad acts” evidence must be “relevant to an issue
    other than character,” “necessary to prove an element of the
    crime charged,” “reliable,” and its “probative value must not be
    substantially        outweighed    by    its       prejudicial       nature.”        United
    States v. Rooks, 
    596 F.3d 204
    , 211 (4th Cir. 2010) (quoting
    United States v. Queen, 
    132 F.3d 991
    , 995 (4th Cir. 1997)).                             The
    11
    district court’s decision to admit the evidence is reviewed for
    abuse of discretion.             United States v. Forrest, 
    429 F.3d 73
    , 79
    (4th Cir. 2005).
    Applying the above standard, the district court did not
    abuse its discretion in admitting evidence of violent acts and
    threats of violence against competitor pimps.                        The evidence was
    relevant     to     Fuertes          and   Ventura’s        familiarity          with      the
    prostitution business, as well as their intent to participate in
    that business.        In other words, Fuertes and Ventura’s attempts
    to     intimidate     or        eliminate      others       involved       in        the   sex
    trafficking       business           constituted      evidence        of        their      own
    participation in that very business, and that they knowingly
    conspired with each other to do so.                      Likewise, evidence that
    Ventura    intimidated          a    family    that   had     attempted         to    help   a
    prostitute    tended        to      establish      Ventura’s       connection         to   the
    prostitute, the brothel at which she worked, the prostitution
    business generally, and the underlying conspiracy out of which
    the business thrived.
    Central to Appellants’ assertion of error is their argument
    that     evidence     of         their     violent      acts       and     threats         was
    “unnecessary” to prove any element of the Count One conspiracy
    charge.      This    argument         is   misplaced.         As    explained         by   the
    district     court,        to       find   Fuertes      and    Ventura          guilty       of
    conspiracy, the jury had to find at least one overt act was
    12
    committed in furtherance of the charged conspiracy.                   And among
    the   overt   acts    charged       in    the   superseding   indictment    were
    violent acts and threats of violence against competitors.                       In
    particular, Count One alleged that, as part of the conspiracy,
    Fuertes and Ventura “threatened to use and used violence against
    those also engaged in prostitution activities within Maryland.”
    J.A. 38–39.     Count One further alleged that, as part of the
    conspiracy, Ventura “claimed responsibility for the murder of
    multiple   competitor       pimps    in    order   to   intimidate    competitor
    pimps and his own employees and female prostitutes.”                 J.A. 39.
    Finally, although the above-described evidence of violent
    acts and threats may have been highly incriminating, Fuertes and
    Ventura proffer no convincing reason why it was unreliable (and
    thus lacking in probative force) or unfair.                   In light of the
    substantial evidence that Fuertes and Ventura forced Duenas—a
    young woman illegally present in the country with no English
    skills and a third-grade education—into prostitution, there was
    no “genuine risk” that the jury would be excited to “irrational
    behavior” over threats of violence and acts of violence against
    less sympathetic competitor pimps.               United States v. Hodge, 
    354 F.3d 305
    , 312 (4th Cir. 2004).             The evidence of threats and acts
    of violence was no more “sensational or disturbing” than the sex
    trafficking crimes with which Fuertes and Ventura were charged.
    See 
    Byers, 649 F.3d at 210
         (“Generally   speaking,    ‘bad   acts’
    13
    evidence, admissible under Rule 404, is not barred by Rule 403
    where    such    evidence   ‘did     not    involve       conduct    any    more
    sensational     or   disturbing    than    the   crimes    with     which   [the
    defendant] was charged.’” (quoting United States v. Boyd, 
    53 F.3d 631
    , 637 (4th Cir. 1995)).             Thus, in sum, the district
    court’s decision to admit the evidence of violence and threats
    of   violence    against    competitor      pimps   was     neither    legally
    erroneous nor an abuse of discretion. 4
    4 In finding no reversible error in the district court’s
    admission of the evidence, we need not delve into the
    intrinsic/extrinsic inquiry advocated by the government at oral
    argument. The government asserted during argument that, because
    violent acts and threats of violence were charged as overt acts
    in the superseding indictment, they were “intrinsic” to the
    Count One conspiracy charge and for that reason alone were
    admissible.    When questioned about what, if any, judicially
    enforceable limitation existed on the government’s ability to
    include overt acts in a proposed indictment, the government
    pointed to the Grand Jury Clause of the Constitution’s Fifth
    Amendment, while defense counsel pointed to the Due Process
    Clause of that same amendment.   As an overt act in furtherance
    of a conspiracy under 18 U.S.C. § 371 need not be alleged in an
    indictment, see United States v. Janati, 
    374 F.3d 263
    , 270 (4th
    Cir. 2004), it would be a strange rule of law that authorized a
    district court to exclude such evidence upon objection at trial
    only if it were not included in an indictment and thereby
    “approved” by the grand jury.
    At all events, the intrinsic/extrinsic inquiry has ventured
    far from where it began. See Milton Hirsch, “This New-Born Babe
    an Infant Hercules”: The Doctrine of “Inextricably Intertwined”
    Evidence in Florida’s Drug Wars, 25 Nova L. Rev. 279, 280 (2000)
    (“[U]ntil about the year 1980, no one thought that evidence of
    uncharged crimes could be rendered admissible by the simple
    expedient of describing it as ‘inextricably intertwined’ with
    evidence of the crime or crimes actually pleaded in the
    indictment.”).   As pointed out by the D.C. Circuit, “it cannot
    be that all evidence tending to prove the crime is part of the
    (Continued)
    14
    B.
    Fuertes and Ventura argue that the district court erred in
    permitting Dr. Baker to testify because: (1) her training and
    experience were almost entirely with juveniles; and (2) she did
    not provide an expert opinion but instead simply attempted to
    bolster   Duenas’    credibility   concerning   the   source   of   the
    latter’s injuries.    They are incorrect.
    Rule 702 of the Federal Rules of Evidence provides that
    “[a] witness who is qualified as an expert by knowledge, skill,
    crime.    If that were so, Rule 404(b) would be a nullity.”
    United States v. Bowie, 
    232 F.3d 923
    , 929 (D.C. Cir. 2000).
    Yet, by characterizing evidence as “intrinsic,” federal courts,
    including this one, have allowed prosecutors to introduce
    evidence of uncharged bad acts free from Rule 404(b)’s
    protections, including limiting jury instructions and advanced
    notice of the government’s intent to introduce the evidence.
    Fortunately, some courts have begun to recognize the harm caused
    by granting federal prosecutors such unmitigated leeway.     See
    United States v. Gorman, 
    613 F.3d 711
    , 719 (7th Cir. 2010)
    (abandoning the “inextricable intertwinement doctrine” because
    it “has outlived its usefulness” and “become overused, vague,
    and quite unhelpful”); United States v. Green, 
    617 F.3d 233
    , 248
    (3d Cir. 2010) (“[T]he inextricably intertwined test is vague,
    overbroad, and prone to abuse, and we cannot ignore the danger
    it poses to the vitality of Rule 404(b).”); 
    Bowie, 232 F.3d at 927
       (“[I]t    is   hard    to    see  what     function  this
    [intrinsic/extrinsic] interpretation of Rule 404(b) performs.”);
    see also United States v. Irving, 
    665 F.3d 1184
    , 1215 (10th Cir.
    2011)    (Hartz,    J.,    concurring)   (stating     that  “the
    intrinsic/extrinsic dichotomy serves no useful function and
    consumes unnecessary attorney and judicial time and effort,” and
    that “the distinction between intrinsic and extrinsic evidence
    is unclear and confusing, and can lead to substituting
    conclusions for analysis”).
    15
    experience, training, or education may testify in the form of an
    opinion or otherwise if”:
    (a) the expert’s scientific, technical, or other
    specialized knowledge will help the trier of fact to
    understand the evidence or to determine a fact in
    issue;
    (b) the       testimony    is    based   on    sufficient      facts    or
    data;
    (c)   the  testimony   is   the               product    of      reliable
    principles and methods; and
    (d) the expert has reliably applied the principles and
    methods to the facts of the case.
    Fed. R. Evid. 702.       Where, as here, the expert testimony is of a
    scientific nature, the district court serves, in essence, as
    gatekeeper,     admitting       the    testimony     where    it     “‘is   not    only
    relevant, but reliable.’”             United States v. Crisp, 
    324 F.3d 261
    ,
    265   (4th   Cir.    2003)   (quoting     Daubert      v.    Merrell    Dow   Pharm.,
    Inc., 
    509 U.S. 579
    , 589 (1993)).
    The district court must exclude “expert testimony related
    to matters which are obviously . . . within the common knowledge
    of jurors.”      United States v. Lespier, 
    725 F.3d 437
    , 449 (4th
    Cir. 2013) (internal quotation marks omitted).                         Thus, absent
    “unusual circumstances,” the district court must exclude expert
    testimony on issues of witness credibility.                    
    Id. The district
    court’s decision to admit expert testimony is reviewed for abuse
    of discretion.        See United States v. Johnson, 
    617 F.3d 286
    , 292
    (4th Cir. 2010).
    16
    Applying the above standard, the district court did not
    abuse   its    discretion     in    permitting      Dr.    Baker,    who    had     ample
    knowledge,      skill,     experience,      training,        and    education        with
    regard to cutaneous findings of abuse, to testify as an expert.
    A   physician      for   twenty-five     years,      Dr.    Baker    served    as    the
    director      of   the    Baltimore      Child      Abuse    Center,        where    she
    performed complete medical examinations and collected forensic
    evidence for alleged cases of child abuse in Baltimore City.
    Dr. Baker explained that, during a forensic examination, she
    focuses particularly on cutaneous findings (the most common type
    of child abuse findings), and that when she discovers an injury
    to the skin, she can draw certain conclusions about the possible
    source or cause of the injury.              Dr. Baker further testified that
    she had examined more than 3,000 individuals where there was a
    concern    of      possible       past   injury,       and    trained        pediatric
    residents, nurse examiners, and staff doctors on how to perform
    forensic examinations.             Finally, Dr. Baker testified that she
    had been qualified to testify as an expert in over two dozen
    cases, including cases in the District of Maryland.
    Fuertes      and   Ventura    take    issue     with    the    fact    that    Dr.
    Baker’s    “experience      was    almost       entirely    with    juveniles,”       and
    that her “training and experience were not in the formation and
    treatment of adult scars.”           Defs.’ Br. at 47.             But, as explained
    by Dr. Baker, “[o]ther than the extreme,” such as “very old
    17
    people [who] have fragile skin” and “very young children [who]
    are particularly prone [to] . . . things that can be mistaken
    for abuse,” there is no distinction between adults and children
    when it comes to cutaneous findings.                J.A. 1388.        In any event,
    Fuertes    and   Ventura’s    objection       to   Dr.     Baker’s    training      and
    experience goes to the weight, not the admissibility, of her
    testimony, and counsel had the opportunity to cross-examine her
    on these issues.     See Kopf v. Skyrm, 
    993 F.2d 374
    , 377 (4th Cir.
    1993) (“The witness’ qualifications to render an expert opinion
    are [] liberally judged by Rule 702.”).                    Likewise, Fuertes and
    Ventura’s critique that Dr. Baker could not testify about when
    Duenas sustained her injuries was appropriate fodder for cross-
    examination.       The     fact   that    Dr.      Baker      could   not   reach    a
    conclusion as to when Duenas was injured did not render the rest
    of her testimony unhelpful or inadmissible.
    Turning to Fuertes and Ventura’s argument that Dr. Baker
    merely provided an opinion as to whether Duenas was telling the
    truth, this argument must be rejected.               Dr. Baker neither opined
    on Duenas’ credibility, nor offered an opinion as to who caused
    her injuries.     Cf. Scott v. Sears, Roebuck & Co., 
    789 F.2d 1052
    ,
    1054–56 (4th Cir. 1986) (determining that the district court
    erred     in   admitting     expert      testimony       on    “human    factors”).
    Rather, Dr. Baker’s testimony was offered to assist the jury in
    determining whether there were signs and markings that Duenas
    18
    had been physically injured.                   While Dr. Baker’s testimony tended
    to corroborate Duenas’ account of how she sustained her injuries
    (i.e., being hit with a belt or being pushed down onto rocky
    ground),     the       mere        fact    that       expert        testimony      tends     to
    corroborate the testimony of another witness is not grounds for
    exclusion;       indeed,      it     is    surely         the   case     that    most    expert
    opinion    evidence         proffered          by    litigants      is    paired    with    lay
    evidence     that      is     in    some       fashion      supported       by   the     expert
    opinion.     E.g., United States v. Gonzales–Flores, 
    701 F.3d 112
    ,
    115 (4th Cir. 2012) (testimony of confidential informant in drug
    trafficking prosecution corroborated by forensic expert); Barbe
    v.    McBride,      
    521 F.3d 443
    ,          461    (4th     Cir.    2008)       (“[T]he
    prosecution utilized its expert evidence to corroborate J.M.’s
    trial testimony and thus buttress the allegation that Barbe had
    indeed    sexually        abused      her.”).             Thus,    the   district       court’s
    decision    to     admit      Dr.    Baker’s         expert       opinion    testimony     was
    neither erroneous nor an abuse of discretion.
    C.
    Ventura asserts that the district court erred in denying
    his   motion     for    judgment          of    acquittal         with   respect    to   Count
    Seven, possession and use of a firearm in relation to a crime of
    violence, in violation of 18 U.S.C. § 924(c).                               He claims that
    sex trafficking by force, fraud, or coercion, in violation of 18
    U.S.C. § 1591(a), which served as the predicate offense for his
    19
    § 924(c) conviction, is not categorically a crime of violence.
    We agree.
    1.
    As a preliminary matter, we must determine which standard
    of   review   applies.       Ventura        asserts    that   de    novo    review    is
    appropriate in light of his general Rule 29 motion for judgment
    of acquittal.         See United States v. Green, 
    599 F.3d 360
    , 367
    (4th Cir. 2010) (stating that the court reviews de novo the
    district court’s denial of a motion for judgment of acquittal
    pursuant to Rule 29 of the Federal Rules of Criminal Procedure).
    He   argues    that    a    “broadly    stated”       motion       for   judgment     of
    acquittal     is   “sufficient         to    preserve     the       full    range    of
    challenges, whether stated or unstated, to the sufficiency of
    the evidence.”         United States v. Hammoude, 
    51 F.3d 288
    , 291
    (D.C. Cir. 1995).          And, here, because sex trafficking by force,
    fraud, or coercion can never satisfy § 924(c)(3)’s definition of
    a crime of violence, there is insufficient evidence to support
    his conviction on Count Seven.
    The government, however, points out, correctly we think,
    that Ventura’s objection is not about factual or evidentiary
    sufficiency; rather, his argument is a purely legal one.                              As
    explained     by   the     government,       Ventura    takes       issue   with     the
    district court’s instruction to the jury regarding Count Seven—
    in particular, its instruction that sex trafficking by force,
    20
    fraud, or coercion is categorically a crime of violence.                                And,
    because Ventura neither objected to the instruction nor argued
    that Count Seven is not categorically a crime of violence, his
    claim may be reviewed only for plain error.                        See, e.g., United
    States v. Tillery, 
    702 F.3d 170
    , 175 (4th Cir. 2012) (“Because
    [the    defendant]       did     not    object    to    the    jury     instructions      at
    trial, we review the instructions for plain error.”).
    The government’s analysis is the correct one.                             Ventura’s
    motion       for    judgment    of     acquittal,      which    dealt    only    with   the
    sufficiency of the evidence, did not preserve a purely legal
    challenge          to   the    jury     instruction       regarding          Count   Seven.
    Accordingly, to prevail on appeal, Ventura must show: (1) there
    was an error; (2) the error was “clear or obvious, rather than
    subject to reasonable dispute;” (3) “the error affected [his]
    substantial rights, which in the ordinary case means it affected
    the outcome of the district court proceedings;” and (4) “the
    error    seriously       affect[ed]       the    fairness,      integrity       or   public
    reputation of judicial proceedings.”                     United States v. Marcus,
    
    560 U.S. 258
    , 262 (2010) (internal quotation marks omitted).
    2.
    To    sustain     a    conviction    under      18     U.S.C.    §    924(c),    the
    government must prove that the defendant (1) used or carried a
    firearm and (2) did so during and in relation to a “crime of
    violence.”          Section 924(c)(3) defines a “crime of violence” as
    21
    “an offense that is a felony and—(A) has as an element the use,
    attempted use, or threatened use of physical force against the
    person    or    property          of    another,          or       (B)   that    by    its     nature,
    involves    a       substantial         risk    that          physical       force         against   the
    person or property of another may be used in the course of
    committing          the    offense.”           18    U.S.C.          §   924(c)(3).            Section
    924(c)(3)(A) is referred to as the “force clause,” while section
    924(c)(3)(B) is called the “residual clause.”
    In determining whether an offense qualifies as a “crime of
    violence” under either clause, the court may (depending on the
    features       of    the        applicable     statute)             employ      the    “categorical
    approach”       or        the    “modified          categorical           approach.”            “[T]he
    modified approach serves a limited function: It helps effectuate
    the   categorical           analysis      when           a    divisible         statute,       listing
    potential offense elements in the alternative, renders opaque
    which    element          played    a   part        in       the    defendant’s        conviction.”
    Descamps v. United States, 
    133 S. Ct. 2276
    , 2283 (2013).                                             The
    categorical approach, by contrast, applies when the defendant
    was convicted of an offense under “an ‘indivisible’ statute—
    i.e., one not containing alternative elements.”                                 
    Id. at 2281.
    A statute is indivisible when “the jury need not agree on
    anything past the fact that the statute was violated.”                                          Rendon
    v. Holder, 
    764 F.3d 1077
    , 1085 (9th Cir. 2014).                                   “Any statutory
    phrase     that—explicitly               or     implicitly—refers                     to     multiple,
    22
    alternative    means       of    commission        must      still    be    regarded     as
    indivisible if the jurors need not agree on which method of
    committing the offense the defendant used.”                          
    Id. Thus, “mere
    use of the disjunctive ‘or’ in the definition of a crime does
    not automatically render it divisible.”                       Omargharib v. Holder,
    
    775 F.3d 192
    ,    194    (4th    Cir.     2014).          “Only    when     [the]    law
    requires that in order to convict the defendant the jury must
    unanimously    agree    that      he   committed       a     particular      substantive
    offense contained within the disjunctively worded statute are we
    able to conclude that the statute contains alternative elements
    and not alternative means.”             
    Rendon, 764 F.3d at 1086
    (emphasis
    in    original).       Accordingly,          although        §    1591(a)      refers    to
    alternative    means        of     commission,         it        contains    a     single,
    indivisible    set     of       elements,        and   the       categorical      approach
    applies.
    Under the “categorical approach,” the court “look[s] only
    to the fact of conviction and the statutory definition of the []
    offense.”     James v. United States, 
    550 U.S. 192
    , 202 (2007)
    (internal quotation marks omitted), overruled on other grounds,
    Johnson v. United States, 
    135 S. Ct. 2251
    (2015).                                The court
    does not consider the “particular facts disclosed by the record
    of conviction.”        
    Id. (internal quotation
    marks omitted).                          “The
    point of the categorical inquiry is not to determine whether the
    defendant’s conduct could support a conviction for a crime of
    23
    violence, but to determine whether the defendant was in fact
    convicted of a crime that qualifies as a crime of violence.”
    United States v. Cabrera-Umanzor, 
    728 F.3d 347
    , 350 (4th Cir.
    2013) (emphasis in original).
    Applying   the   above    test,    we      consider   first    whether      sex
    trafficking by force, fraud, or coercion qualifies categorically
    as a crime of violence under the force clause, § 924(c)(3)(A).
    It does not.     After Descamps, when a statute defines an offense
    using a single, indivisible set of elements that allows for both
    violent and nonviolent means of commission, the offense is not a
    categorical crime of violence.               Cf. United States v. Aparicio-
    Soria, 
    740 F.3d 152
    , 157–58 (4th Cir. 2014) (en banc) (reasoning
    that, because the Maryland offense of resisting arrest has a
    single and indivisible set of elements that may be committed by
    either   violent     or   nonviolent         means,   it    does    not     qualify
    categorically as a crime of violence under U.S.S.G. § 2L1.2, the
    reentry Guideline); United States v. Royal, 
    731 F.3d 333
    , 341–42
    (4th Cir. 2013) (reasoning that, because the Maryland offense of
    second-degree assault has an indivisible set of elements that
    may be committed by either violent or nonviolent means, it does
    not   qualify    categorically     as        a   “violent   felony”       under    §
    924(e)(1)).      Accordingly, because § 1591(a) specifies that sex
    trafficking     by   force,    fraud,    or      coercion   may     be    committed
    nonviolently—i.e., through fraudulent means—the offense does not
    24
    qualify      as    a    categorical         crime   of    violence     under     the    force
    clause.
    Turning         to   the    residual    clause,        the   government    suggests
    that sex trafficking is categorically a crime of violence under
    § 924(c)(3)(B) because, even where the defendant effects the
    offense by means of fraud, there is still a substantial risk of
    physical injury from the prostitute’s customers, or johns. 5                             This
    argument         misapprehends        the     clear      language     of   the    residual
    clause, which specifies that a felony is a crime of violence
    when       it,   “by    its       nature,    involves     a    substantial       risk   that
    physical force against the person or property of another may be
    used in the course of committing the offense.”                              18 U.S.C. §
    924(c)(3)(B) (emphasis added).                  The residual clause makes plain
    5
    We have considered the parties’ supplemental briefing
    following the Supreme Court’s decision in Johnson v. United
    States, 
    135 S. Ct. 2251
    (2015). We note that in Johnson, 
    id. at 2557-60,
    the Supreme Court held unconstitutionally vague the
    version of the residual clause set forth in 18 U.S.C.
    § 924(e)(2)(B), but the Court had no occasion to review the
    version of the residual clause set forth at 18 U.S.C. §
    924(c)(3)(B), the one at issue in this case. The two
    formulations, one requiring “conduct that presents a serious
    potential risk of physical injury to another,” § 924(e)(2)(B),
    the other requiring proof of “a felony . . . that by its nature
    involves a substantial risk that physical force against the
    person or property of another may be used in the course of
    committing the offense,” § 924(c)(3)(B), are similarly worded
    but not identically so.    For the reasons explained in text, we
    find it unnecessary in this case to explore whether the Supreme
    Court’s invalidation of the former provision applies as well to
    the latter provision. See Ashwander v. Tenn. Valley Auth., 
    297 U.S. 288
    , 346–48 (1936) (setting forth the principle of
    constitutional avoidance).
    25
    (for all its erstwhile murkiness) that the relevant inquiry is
    not whether there is a risk of any person using force in any way
    tangentially related to an on-going offense, but rather whether
    there is a substantial risk of the defendant doing so.
    The    government    nevertheless       relies     on      United    States    v.
    Willoughby, 
    742 F.3d 229
    (6th Cir. 2014), to argue that the risk
    of force need not come from the defendant.                     In Willoughby, the
    Sixth Circuit observed that:
    the act of causing a minor to engage in prostitution—
    even when the defendant’s act does itself not involve
    force—obviously does present a “serious potential risk
    of physical injury” to the victim.         U.S.S.G. §
    4B1.2(a)(2).   There is the risk of physical injury
    from the sex act itself; the risk of violence from
    johns, many of whom . . . are addicted to drugs; and,
    not least, the risk of violence from the pimps
    themselves.
    
    Id. at 242.
          But, unlike the present case, Willoughby involved
    the more expansive definition of a crime of violence found in
    U.S.S.G. § 4B1.2.        See 
    id. (explaining that,
    under U.S.S.G. §
    4B1.2, a “crime of violence” includes “any felony that has as an
    element the use, attempted use, or threatened use of physical
    force   against    the   person    of    another      or       is   burglary   of   a
    dwelling, arson, or extortion, involves use of explosives, or
    otherwise   involves     conduct   that      presents      a    serious   potential
    risk of physical injury to another” (emphasis added) (internal
    quotation marks omitted)).
    26
    In   analyzing       identical        language          to   that   contained      in   §
    924(c)(3)(B), the Supreme Court has indicated that the relevant
    inquiry in determining whether an offense qualifies as a crime
    of violence is not simply whether there is a substantial risk of
    physical injury.          See Leocal v. Ashcroft, 
    543 U.S. 1
    , 10–11 &
    n.7 (2004) (deciphering the term “crime of violence” under 18
    U.S.C. § 16).        Rather, the relevant inquiry is whether there is
    a substantial risk that the defendant will use physical force
    against    the    victim       in   completing          the    crime.      Id.;    see    also
    United States v. Serafin, 
    562 F.3d 1105
    , 1110 (10th Cir. 2009)
    (“[F]or an offense to qualify as a crime of violence under §
    924(c)(3)(B),       we   must       ensure    the       statute      proscribes      conduct
    which not only (1) involves a disregard of a substantial risk of
    force against another—which, by itself, would only satisfy the §
    4B1.2(a)(2) definition—but also (2) where such risk of force
    arises during the course of committing the offense.” (emphasis
    added)).     Thus,       for    example,      “[a]       burglary       would   be   covered
    under § 16(b) not because the offense can be committed in a
    generally reckless way or because someone may be injured, but
    because burglary, by its nature, involves a substantial risk
    that the burglar will use force against a victim in completing
    the   crime.”       
    Leocal, 543 U.S. at 10
       (emphasis     added).          We
    conclude,        therefore,         that     the        district        court     erred       in
    27
    instructing the jury that sex trafficking by force, fraud, or
    coercion is categorically a crime of violence.
    Having determined that the district court erred, we next
    consider whether the error was clear or obvious.                        The government
    argues    that      any   error     could   not   have     been    clear    or    obvious
    because neither this Court nor the Supreme Court has determined
    whether sex trafficking qualifies as a crime of violence under §
    924(c).       Cf. United States v. Wynn, 
    684 F.3d 473
    , 480 (4th Cir.
    2012) (concluding that, where the court never addressed an issue
    and   the     other    circuits     were    split,      “the    issue     has   not   been
    resolved plainly” (emphasis in original)).                        Descamps, however,
    speaks directly to whether § 1591(a) qualifies categorically as
    a crime of violence under § 924(c)’s force clause.                              Moreover,
    despite the government’s argument to the contrary, it is of no
    import that Descamps was decided after the jury verdict in this
    case.     As the Supreme Court has said, “whether a legal question
    was settled or unsettled at the time of trial, it is enough that
    an    error    be   plain      at   the   time    of    appellate       consideration.”
    Henderson      v.     United    States,     133    S.     Ct.     1121,    1130   (2013)
    (internal quotation marks omitted).                    It is sufficient, in short,
    that the district court’s error as to the force clause is plain
    on appeal.
    Likewise, the district court’s error was plain as to the §
    924(c)(3)(B) residual clause.                As stated above, we reject the
    28
    government’s argument that sex trafficking by force, fraud, or
    coercion qualifies as a categorical crime of violence under the
    §    924(c)(3)(B)     residual           clause    because   prostitutes     face    a
    substantial risk of physical injury from johns. 6                    Given the clear
    language of the § 924(c)(3)(B) residual clause, and the Supreme
    Court’s analysis in Leocal, the government cannot credibly claim
    that       the   district        court     lacked      controlling     authority    in
    interpreting § 924(c)(3)(B) and deciding whether sex trafficking
    by   force,      fraud,     or    coercion        is   categorically    a   crime   of
    6
    At oral argument, the government did not advance the
    position that the typical case of sex trafficking by force,
    fraud, or coercion involves a substantial risk that the
    defendant will use physical force as a means to commit the
    offense.   See Oral Argument at 32:42, United States v. Fuertes
    (No. 13-4755) (counsel referred the court to legislative
    findings when questioned about why the government did not
    advance a “typical case” argument).          Following argument,
    however, the government submitted a letter pursuant to Federal
    Rule of Appellate Procedure 28(j), contending that, under the
    Eleventh Circuit’s decision in United States v. Keelan, 
    786 F.3d 865
    (11th Cir. 2015), the “ordinary case” of sex trafficking
    involves a substantial risk that the defendant will use physical
    force.   Keelan has no bearing on this case.      In Keelan, the
    Eleventh Circuit confronted whether 18 U.S.C. § 2422, which
    “prohibits knowingly persuading, inducing, enticing, or coercing
    a minor to engage in sexual activity,” is categorically a crime
    of violence under 18 U.S.C. § 16(b).       
    Id. at 870
    (emphasis
    added). Critical to the court’s determination that the offense
    did so qualify was the fact that the victim was a minor.     See
    
    id. at 871
    (“We [have] found that [i]n cases involving sex
    crimes against minors, . . . there is always a substantial risk
    that physical force will be used to ensure a child’s compliance
    with an adult’s sexual demands.” (internal quotation marks
    omitted)). In any event, we are not persuaded that the ordinary
    case of sex trafficking by force, fraud, or coercion involves a
    substantial risk that the defendant will use physical force as a
    means to commit the offense.
    29
    violence under that provision.               Cf. United States v. Carthorne,
    
    726 F.3d 503
    , 516–17 (4th Cir. 2013), called into question in
    part by Johnson v. United States, 
    135 S. Ct. 2251
    , 2560 (2015). 7
    Finally, we agree with Ventura that the district court’s
    obvious error affected his substantial rights as well as the
    fairness,       integrity,          and   public     reputation       of      judicial
    proceedings.          Ventura cannot be guilty of violating § 924(c),
    and yet he received an additional sixty months’ imprisonment for
    this offense.             “[Five] years of a man’s life is not a trifling
    thing.”        United States v. Ford, 
    88 F.3d 1350
    , 1356 (4th Cir.
    1996).         We    simply     cannot    “require   a    man    to   serve    [five]
    undeserved years in prison when [we] know[] that the sentence is
    improper.”          
    Id. Accordingly, because
    the district court plainly
    erred in instructing the jury that sex trafficking by force,
    fraud,    or    coercion       is   categorically    a   crime   of   violence,    we
    vacate Ventura’s § 924(c) conviction, and remand for entry of
    judgment of acquittal on that count and resentencing.
    7 Our opinion in United States v. Carthorne, 
    726 F.3d 503
    (4th Cir. 2013), analyzed the career offender guideline,
    U.S.S.G. § 4B1.2(a).    
    Id. at 510.
       In that guideline, the
    Sentencing Commission adopted verbatim the residual clause of
    the Armed Career Criminal Act, which the Supreme Court
    invalidated as fatally vague under the Fifth Amendment due
    process clause.   Cf. 
    Johnson, 135 S. Ct. at 2560
    (discussing
    Carthorne).
    30
    D.
    Fuertes argues that the district court erred in denying his
    motion for judgment of acquittal on Count Six, as there was
    insufficient    evidence      that    he    knew     or   recklessly    disregarded
    that Duenas was coerced or forced to engage in commercial sex
    acts. 8    We disagree.
    As    stated   above,   we     review     de    novo   a   district   court’s
    denial of a motion for judgment of acquittal.                     
    Green, 599 F.3d at 367
    .      “[A]ppellate     reversal        on    grounds    of    insufficient
    evidence . . . will be confined to cases where the prosecution’s
    failure is clear.”        
    Id. (internal quotation
    marks omitted).                   In
    reviewing the sufficiency of the evidence, the relevant question
    is whether, viewing the evidence in the light most favorable to
    the government, “any rational trier of fact could have found the
    essential elements of the crime beyond a reasonable doubt.”                        
    Id. (internal quotation
       marks      omitted).           Put    another    way,     a
    reviewing court “cannot set aside a jury’s verdict if it is
    supported by substantial evidence when viewed in the light most
    8The district court instructed the jury that Fuertes was
    guilty of sex trafficking by force, fraud, or coercion if: (1)
    he   knowingly   recruited,   enticed,  harbored,   transported,
    provided, or obtained a person (namely, Duenas) by any means, or
    benefitted financially from participation in a venture engaged
    in any such act; (2) he knew or recklessly disregarded that
    force, fraud, or coercion would be used with respect to Duenas;
    (3) he knew that Duenas would be engaged in a commercial sex
    act; and (4) his conduct was in or affecting interstate
    commerce.
    31
    favorable to the government.”         United States v. Taylor, 
    659 F.3d 339
    , 343 (4th Cir. 2011).
    Here, a reasonable jury could have found that Fuertes knew
    or recklessly disregarded that Duenas was forced or coerced to
    commit commercial sex acts.          As pointed out by the government,
    Fuertes does not dispute “the sufficiency of the evidence of his
    participation    in   the    commercial      sex    enterprise      with   and   on
    behalf of Ventura.”      Gov’t Br. at 43.           Nor does he dispute that
    he was present at most, if not all, of the places where Duenas
    provided sexual services on behalf of Ventura.                    Rather, Fuertes
    disputes that he witnessed one occasion when Ventura beat her
    with a belt.     Although Duenas indicated on direct examination
    that Fuertes was in the same house (but not necessarily the same
    room) when Ventura beat her with a belt, she clarified during
    redirect   examination      that   Fuertes    had    in    fact    witnessed     the
    beating.   Taking the facts in the light most favorable to the
    government, a reasonable trier of fact could have found that
    Fuertes witnessed Ventura beating Duenas, and that the beating,
    combined with the level of Fuertes’ involvement in Ventura’s
    prostitution    business,     constituted     proof       beyond    a   reasonable
    doubt that Fuertes knew or recklessly disregarded that Duenas
    was coerced or forced into prostitution.              Accordingly, we affirm
    the district court’s denial of Fuertes’ motion for judgment of
    acquittal on Count Six.
    32
    III.
    For the reasons stated above, the judgment in No. 13-4755
    is affirmed; the judgment in No. 13-4931 is affirmed in part and
    vacated and remanded in part.
    No. 13-4755 AFFIRMED;
    No. 13-4931 AFFIRMED IN PART AND
    VACATED AND REMANDED IN PART WITH INSTRUCTIONS
    33