United States v. Karani ( 2021 )


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  •           United States Court of Appeals
    For the First Circuit
    No. 19-1031
    UNITED STATES OF AMERICA,
    Appellee,
    v.
    ADARBAAD F. KARANI,
    Defendant, Appellant.
    APPEAL FROM THE UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF MASSACHUSETTS
    [Hon. Rya W. Zobel, U.S. District Judge]
    Before
    Howard, Chief Judge,
    Lynch and Lipez, Circuit Judges.
    Katherine C. Essington for appellant.
    Randall E. Kromm, Assistant United States Attorney, with whom
    Andrew E. Lelling, United States Attorney, was on brief, for
    appellee.
    January 4, 2021
    LIPEZ, Circuit Judge.        After a six-day trial, a jury
    convicted Adarbaad F. Karani, a former officer of the Boston Police
    Department, on two counts of making false statements during the
    purchase of a firearm, in violation of 
    18 U.S.C. § 922
    (a)(6), and
    one count of making a false statement in a record required to be
    kept by federal law, in violation of 
    18 U.S.C. § 924
    (a)(1)(A).
    The district court sentenced Karani to concurrent three-month
    terms of imprisonment, followed by a one-year term of supervised
    release.
    Karani   appeals   his    conviction    on   all   three   counts,
    arguing that we must vacate the conviction because the district
    court's jury instructions contained several legal and factual
    errors.     In particular, Karani claims that the decision of the
    district court to define the terms "gift" and "actual purchaser,"
    used in a document essential to the purchase of the firearms,
    invaded the province of the jury.            He also argues that the court
    provided inconsistent, mistaken, and confusing instructions on the
    first count of making false statements during the purchase of a
    firearm in violation of § 922(a)(6).1
    After careful review of the record and the law, we
    affirm.
    1   This case does not implicate any Second Amendment concerns.
    - 2 -
    I.
    A.   The Ilnicki Transfer
    We recount the facts, most of which are undisputed, as
    the jury could have found them.             In November 2015, the Boston
    Police Department ("BPD") recovered and transferred to the Federal
    Bureau of Alcohol, Tobacco, Firearms and Explosives ("ATF") a Glock
    .45 caliber pistol with serial number YVT194.            ATF agents traced
    the firearm's ownership to David Ilnicki, who had reported the gun
    stolen about a month earlier.         Ilnicki told police that the gun
    was a "gift" from a "friend."        ATF's investigation revealed that
    the original purchaser of the firearm ("the Ilnicki gun") was
    appellant Karani.
    Karani    met   Ilnicki    while    working   police   details   at
    nightclubs in Boston where Ilnicki worked as a security manager
    and promoter.   Ilnicki testified that he initially sought to build
    a rapport with Karani to ensure security ran smoothly at the clubs,
    but they eventually became friends.          In August 2015, Ilnicki asked
    Karani via text message whether Karani knew if any BPD officers
    were selling unwanted firearms at a discounted price.                Karani
    responded that he would "hook [Ilnicki] up."            The pair discussed
    the various firearms of interest to Ilnicki, who ultimately settled
    on a Glock, model 30S, .45 caliber pistol.
    That model did not meet Massachusetts' consumer safety
    standards and, therefore, could be purchased from an FFL in
    - 3 -
    Massachusetts only by qualified law enforcement officers, which
    precluded Ilnicki from purchasing the gun on his own.                      See 
    Mass. Gen. Laws ch. 140, § 123
        (prohibiting    the    sale   of    certain
    categories of firearms in Massachusetts); 501 Mass. Code Regs. §
    7.02 (identifying the categories of firearms that are prohibited);
    see also 18 U.S.C. § 926B (providing that, "[n]otwithstanding any
    other provision of the law of any State . . . a qualified law
    enforcement officer . . . may carry a concealed firearm that has
    been       shipped       or   transported    in     interstate    commerce,"     except
    machine guns, firearm silencers, or other destructive devices).
    As a police officer, however, Karani could purchase the pistol and
    was also eligible to receive a manufacturer discount.2                         With the
    discount, Karani paid $530 to purchase the Ilnicki Gun from
    Precision Point Firearms, a federal firearms licensee ("FFL")
    located in Woburn, Massachusetts.
    To complete the purchase of the gun, Karani filled out
    ATF Form 4473, a document that FFLs must use to gather the details
    that they are required by federal law to report about persons
    purchasing firearms.             See 
    18 U.S.C. § 923
    (g); 
    27 C.F.R. § 478.124
    .
    That data includes the purchaser's name, address, date of birth,
    2
    In particular, Karani was eligible for Glock, Inc.'s "Blue
    Label Program," which offers members of law enforcement,
    firefighters, paramedics, and military personnel a $75-$100
    discount on certain Glock pistols. See GLOCK Blue Label Program,
    GLOCK, Inc., https://us.glock.com/buy/blue-label-program (last
    visited Nov. 17, 2020).
    - 4 -
    ethnicity, height, and weight.       Form 4473 also assists FFLs in
    collecting the information needed for the criminal background
    checks required under federal law.
    Form 4473 also contains a series of questions intended
    to assess whether an individual may lawfully purchase and possess
    a firearm.    For example, Questions 11.c. and 11.k. ask whether the
    potential purchaser is a felon or illegally present in the United
    States, statuses that preclude the possession of a firearm.            See
    
    18 U.S.C. § 922
    (g)(1),(5)(A).     Of relevance to this case, Question
    11.a. asks whether an individual is "the actual transferee/buyer"
    of   the   firearm.    Question   11.a.   also   offers   the    following
    admonition: "Warning: You are not the actual buyer if you are
    acquiring the firearm(s) on behalf of another person.           If you are
    not the actual buyer, the dealer cannot transfer the firearm(s) to
    you.   (See Instructions for Question 11.a.)."            The associated
    instructions state:
    Question 11.a. Actual Transferee/Buyer: For
    purposes of this form, you are the actual
    transferee/buyer if you are purchasing the
    firearm for yourself or otherwise acquiring the
    firearm for yourself (e.g., redeeming the
    firearm    from   pawn/retrieving    it    from
    consignment, firearm raffle winner). You are
    also the actual transferee/buyer if you are
    legitimately purchasing the firearm as a gift
    for a third party.     ACTUAL TRANSFEREE/BUYER
    EXAMPLES: Mr. Smith asks Mr. Jones to purchase
    a firearm for Mr. Smith. Mr. Smith gives Mr.
    Jones the money for the firearm. Mr. Jones is
    NOT THE ACTUAL TRANSFEREE/BUYER of the firearm
    and must answer "NO" to question 11.a.      The
    - 5 -
    licensee may not transfer the firearm to Mr.
    Jones.   However, if Mr. Brown goes to buy a
    firearm with his own money to give to Mr. Black
    as a present, Mr. Brown is the actual
    transferee/buyer of the firearm and should
    answer "YES" to question 11.a.
    The answer to Question 11.a. must be "Yes" for the sale
    to proceed; that is, the individual filling out the form must
    attest that he is the actual transferee/buyer of the gun.              As the
    instructions explain, an individual falls into that category if he
    purchases the gun either for himself or as a gift for a third
    party.   The Form does not, however, ask an individual to identify
    which of those two scenarios applies.3
    In September 2015, Karani checked "Yes" in response to
    Question    11.a.,    attesting        that      he   was     the      "actual
    transferee/buyer" of the Ilnicki gun.           He did not indicate to the
    FFL whether he was purchasing the firearm for himself or as a gift
    and the FFL did not ask.
    In   addition   to   Form    4473,    Karani     also    signed   an
    "Affidavit in Support of Handgun Purchase for Official Duty" ("the
    Ilnicki Affidavit" or "the Affidavit").          By signing the Affidavit,
    Karani swore, under penalty of perjury, that he was purchasing the
    3 If an FFL nonetheless becomes aware during a transaction
    that the individual is purchasing a firearm as a gift, the FFL
    might, as a matter of practice, keep the firearm in the store until
    the recipient picks it up, at which point the recipient himself
    will complete ATF Form 4473 and undergo a background check. There
    does not seem to be any law or regulation that explicitly requires
    this practice.
    - 6 -
    firearm to "directly or indirectly supply [himself] with a handgun
    for [his] official duties as a law enforcement official or member
    of the United States military."4
    Either before or shortly after Karani purchased the gun,
    Ilnicki provided Karani confirmation of his firearms license and
    paid Karani $500 in cash.        Ilnicki testified that he intended to
    give Karani $530, but the ATM would allow him to take out only
    $500.       When Ilnicki said he would owe Karani $30, Karani responded
    that Ilnicki could make up the difference with a round of drinks.
    When Karani completed the documents to transfer the gun
    to Ilnicki, he entered the incorrect serial number.5       That serial
    number -- XRF158 -- belonged to another Glock firearm that was
    4
    The FFL testified at trial that the Affidavit was prepared
    by his attorney for the FFL's own "peace of mind" and to protect
    him from liability under state law by confirming Karani's status
    as a law enforcement officer. In closing, however, defense counsel
    argued that the sole purpose of the Affidavit was to confirm
    Karani's eligibility for the Glock discount. Although the impetus
    for the Affidavit is thus somewhat unclear, this uncertainty does
    not affect the issues presented in this case. The Affidavit was
    withdrawn from the jury's consideration for the reasons explained
    infra in Section I.F.
    5
    Mass. Gen. Laws ch. 140, §§ 128A and 128B require all gun
    sales, transfers, inheritances, or losses to be reported to the
    Massachusetts Department of Criminal Justice Information Services
    Firearms Records Bureau through the online Massachusetts Gun
    Transaction Portal.    See Massachusetts Gun Transaction Portal,
    https://mircs.chs.state.ma.us/fa10/action/home?app_context=home&
    app_action=presentHome (last visited Nov. 4, 2020). The required
    information includes a detailed description of the transferred
    weapon (caliber, make, model, and serial number) and the name and
    address of both the seller/transferor and buyer/transferee. Mass.
    Gen. Laws ch. 140, § 128B.
    - 7 -
    purchased by Karani less than a year earlier and was transferred
    to another individual, Joseph DePasquale, just two days after its
    purchase.   The timing of that transfer aroused ATF's suspicion and
    led agents to investigate whether Karani had unlawfully purchased
    the gun on behalf of DePasquale.
    B.   The DePasquale Transfer
    Like Ilnicki, Karani knew DePasquale through working in
    the Boston nightlife industry.     DePasquale's father owned various
    restaurants and nightclubs in Boston for which Karani regularly
    provided police detailing services.      DePasquale testified that,
    after he told Karani that he was getting his gun license, Karani
    offered to help him purchase a firearm at a law enforcement
    discount.    Based on DePasquale's preferences, Karani purchased a
    Glock, model 27, .40 caliber pistol ("the DePasquale gun") in
    November 2014, from FFL North Shore Firearms, LLC, in Middleton,
    Massachusetts.    DePasquale was prohibited from purchasing that
    model Glock on his own because it could be purchased from an FFL
    in Massachusetts only by qualified law enforcement officers for
    the same reasons described above with respect to the Ilnicki gun.
    See 
    Mass. Gen. Laws ch. 140, § 123
    ; 501 Mass. Code Regs. § 7.02;
    see also 18 U.S.C. § 926B.     Karani also purchased a holster for
    the DePasquale gun.
    Karani completed and signed an ATF Form 4473 for the
    DePasquale gun identical to the one described above with respect
    - 8 -
    to the Ilnicki gun.              Karani similarly checked "Yes" to Question
    11.a.       He also signed a document titled "Certification Letter,"
    stating,      not    under       penalty   of   perjury,    that   he    was   a   law
    enforcement officer purchasing the firearm for "on or off duty use
    and . . . not .           .    . for resale."6
    On November 19, 2014, Karani sent DePasquale a text
    message stating: "picked up your piece today.                 gotta good deal on
    it. . . . came out to $500 w/tax.                  should wait a few days before
    we do the transfer."             DePasquale agreed to pay Karani the "exact
    amount" and sent Karani a picture of his valid firearms license.
    On   November       21,       Karani   completed    the   paperwork     to   transfer
    ownership of the firearm to DePasquale.
    A week later, Karani transferred physical possession of
    the gun to DePasquale and arranged for payment at a later date.
    6
    At trial, a seventeen-year ATF veteran explained the
    function of the Letter somewhat inconsistently. Compare Docket
    No. 106, at 136 (explaining that the Letter was prepared by the
    wholesaler/distributor and had the dual effect of confirming
    Karani was a law enforcement officer eligible to purchase a gun
    that was otherwise prohibited under Massachusetts law, and
    providing assurance to the manufacturer that Karani was eligible
    to receive the manufacturer's law enforcement discount), with
    Docket No. 106, at 141-42 (explaining that the Letter was not
    prepared for the manufacturer to confirm eligibility for the
    discount, but instead was a form that an FFL is required by
    Massachusetts law to keep in his records). For reasons we will
    explain infra at note 14, however, the origin and purpose of the
    Certification Letter do not impact our analysis of the issues
    presented in this appeal.
    - 9 -
    DePasquale ultimately paid Karani $540, which was the total cost
    of the firearm and holster with Karani's law enforcement discount.
    C.   The Indictment
    In April 2017, Karani was indicted on four counts of
    knowingly making a false statement in connection with purchasing
    a firearm.    Counts 1 and 2 alleged violations of 
    18 U.S.C. § 922
    (a)(6), which makes it unlawful for any individual "knowingly
    to make any false or fictitious oral or written statement . . .
    with respect to any fact material to the lawfulness" of a federal
    firearms sale.     Counts 3 and 4 alleged violations of 
    18 U.S.C. § 924
    (a)(1)(A), which provides that whoever "knowingly makes any
    false statement . . . with respect to the information required
    . . . to be kept in the records" of an FFL, "shall be fined[,]
    . . . imprisoned not more than five years, or both."
    Counts    1   and   3   involved   Karani's   purchase   of   the
    DePasquale gun under the respective statutes.            Count 1 alleged
    that Karani made two false statements in violation of § 922(a)(6):
    (1) by claiming that he was the "actual transferee/buyer" of the
    DePasquale gun on the ATF Form 4473 that he completed at the time
    of purchase; and (2) by stating on the Certification Letter that
    he was purchasing the DePasquale gun for "official use and not for
    - 10 -
    resale."7   Count 3 alleged that Karani's statement on the ATF Form
    4473 alone also violated § 924(a)(1)(A).
    Counts 2 and 4 involved Karani's purchase of the Ilnicki
    gun under the respective statutes.          Count 2 alleged that Karani
    made two false statements in violation of § 922(a)(6): (1) by
    asserting that he was the "actual transferee/buyer" of the Ilnicki
    gun on the ATF Form 4473 that he completed at the time of purchase;
    and   (2)   by   claiming   on   the   Ilnicki   Affidavit   that   he   was
    "indirectly or directly" purchasing the gun for "official use."
    Count 4 alleged that Karani's statement on the ATF Form 4473 alone
    also violated § 924(a)(1)(A).
    D.    Karani's Defense at Trial
    In his opening statement, Karani presented the essence
    of his defense: he "reasonably view[ed] the transfer of the two
    firearms at the police discount as being a gift to his friends"
    within the meaning of Form 4473.            On the third day of trial,
    however, the court informed counsel that it intended to charge the
    jury "that [Form 4473] pertains to a transfer of a gun or gift of
    a gun, not of a discount, and that it is not a defense to the case
    to say that Karani was giving a discount."               Defense counsel
    objected to no avail, arguing that the court was upending the
    7The indictment incorrectly quotes the Certification Letter,
    which actually states that the gun was purchased for "on or off
    duty use and . . . not . . . for resale." This discrepancy is
    discussed in further detail infra in Section II.E.
    - 11 -
    defense and that whether the "gift" in ATF Form 4473 refers to the
    gun itself or the transfer of a discount was a factual question
    for the jury to decide.
    Testifying on the fourth day of trial, Karani conceded
    that he never intended to keep either the DePasquale or the Ilnicki
    gun.    In both instances, he intended to use his law enforcement
    status to purchase a gun at a discounted price for a friend.
    Despite the court's warning that it would instruct the jury that
    the discount was not a gift, Karani maintained that he was truthful
    in his purchases because he reasonably believed that the discount
    constituted   a   gift.    Recognizing   that   the   court's   previewed
    instruction foreclosed that defense, Karani also testified that
    the guns themselves were gifts because he transferred them without
    profit, was reimbursed only after he had purchased the guns with
    his own money, was not reimbursed fully for the Ilnicki gun, and
    was not compensated for his time or travel expenses.
    E.     Jury Instructions
    The district court instructed the jury on the fifth day
    of trial.    The court began by explaining that Karani was indicted
    on four counts of knowingly making a false statement under two
    different statutes, with respect to two different purchases.          In
    defining a "gift" ("the gift instruction"), the court stated:
    Now, Form 4473 describes an actual buyer/transferee
    as one who buys a firearm for his own use or one
    who legitimately buys a firearm as a gift for [a]
    - 12 -
    third party.    A "gift" means something that is
    voluntarily transferred to someone without payment,
    without compensation. In Form 4473, "gift" refers
    to the firearm, not the discount.
    The court further explained that the jury had to decide Karani's
    intent ("the actual purchaser instruction"):
    Was [Karani] buying the firearm for himself or as
    a gift for someone else or did he buy it for another
    with the intention to transfer the gun to that
    person with the expectation that the person would
    pay for it and did so, in which case he is not the
    actual purchaser.
    The court pointed out that Karani was charged with making
    two false statements concerning each purchase in Counts 1 and 2:
    one each on ATF Form 4473 and a supporting document.      The court
    informed the jury that, even though the indictment alleged that
    Karani made both false statements for each gun purchase, there is
    an indictment convention that "and" means "or" and "or" means
    "and."8   Accordingly, the court explained, "the [g]overnment d[id]
    not have to prove . . . that the [d]efendant made a false statement
    in two documents."9   The court further informed the jury that "all
    12 of you have to be in agreement as to one or the other or both;
    8 The parties cite no such generally applicable indictment
    convention. See infra at note 31.
    9 This instruction, when read in the context of the complete
    jury charge, sought to inform the jury that, even though Counts 1
    and 2 each alleged two separate false statements (one each in ATF
    Form 4473 and a supporting document), the government needed to
    prove only one false statement on each count in order to sustain
    a conviction on that count.
    - 13 -
    that if all of you do not agree that the [d]efendant made a false
    statement in at least one of these documents and which one, you
    must find him not guilty."
    Following the jury charge, defense counsel objected only
    to the court's gift instruction.
    F.   Questions from the Jury
    On   the   first   afternoon   of   deliberations,   the   jury
    submitted three questions to the court, two of which are relevant
    to this appeal: (1) "Under which counts is a false statement on a
    4473 a violation?" and (2) "Under which counts would a false
    statement on the affidavits signed at the FFL(s) (not the 4473) be
    a violation?"10   After a lengthy discussion with counsel, the court
    responded: (1) "[O]n all counts, 1 through 4, a false statement on
    Form 4473 is a violation of law";11 and (2) "Count 1 is the only
    count that references an affidavit on which the [d]efendant is
    accused of representing that the 'purchase was for official use
    and not for resale.'"12
    10 The third question asked for a transcript of Karani's
    testimony, which the court informed the jury was not yet available.
    11 As noted, there were two ATF Form 4473s at issue: one
    involving the DePasquale gun on Counts 1 and 3 and one involving
    the Ilnicki gun on Counts 2 and 4.
    12 Although the court used the term "affidavit," it was
    referencing the Certification Letter in Count 1. The implications
    of the court's misuse of the word affidavit are discussed infra in
    Section II.E.
    - 14 -
    This explanation modified an earlier instruction of the
    court that a conviction could be sustained on Count 2 for the
    Ilnicki gun based on either the ATF Form 4473 or the Ilnicki
    Affidavit.13     The court's revised instruction left only the ATF
    Form 4473 as grounds for conviction on Count 2, but left Count 1
    untouched.     For the DePasquale gun, the subject of Count 1, either
    the ATF Form 4473 or the Certification Letter could sustain a
    conviction.      Defense   counsel   objected   to   this   modification,
    insisting that the court's logic on Count 2 applied equally to
    Count 1, and that a false statement on an ATF Form 4473 was
    necessary for a conviction on either count.      Specifically, defense
    counsel argued that because the Certification Letter was not
    required for the sale to proceed under federal law, a false
    statement on the Certification Letter was not an independent basis
    for a conviction on Count 1.14
    13 After much back and forth with counsel, the court decided
    that the Affidavit cited in Count 2 was too "broad" to be submitted
    to the jury because, unlike the Certification Letter, it did not
    include a statement that Karani was not purchasing the gun for
    resale.      This supplemental instruction triggered several
    additional questions from the jury relating to the Count 2
    Affidavit. As we shall further explain at the end of this section,
    that back and forth affected the jury's ultimate task on each
    count.
    14On appeal, Karani no longer argues that the Certification
    Letter could not support a conviction on Count 1, which charged a
    violation of 
    18 U.S.C. § 922
    (a)(6).     He argues only that the
    court's original and supplemental instructions regarding the
    Certification Letter were incorrect and confused the jury. The
    rationale for this change of position seems clear.    To prove a
    violation of § 922(a)(6), the government needed to prove that an
    - 15 -
    Approximately one hour later, the jury submitted two
    additional questions not relevant to this appeal.15    Less than a
    half hour after the court answered those questions, the jury posed
    two additional questions, one of which is relevant here:16
    Count 2 on the indictment indicated that [Karani]
    signed an affidavit that the purchase was for
    official use. Per your first note, you said only
    Count 1 [] references the affidavit. The second
    count would fall to a unanimous vote if the
    affidavit is relevant. So, we just want to check
    on if that would be true.
    After another lengthy conversation with counsel, the
    court concluded that it would not retract its previous instruction
    oral or written statement was made knowingly, was false, and was
    material to the lawfulness of a federal firearms sale. 
    18 U.S.C. § 922
    (a)(6). Unlike its counterpart, § 924(a)(1)(A), there is no
    requirement in § 922(a)(6) that the statement be made in a record
    required by law to be kept by an FFL.       Neither is there any
    requirement that the statement be made in a form required by law
    or even be one that an individual was required by state or federal
    law to make. Id. The manner or form of a knowingly false statement
    is irrelevant so long as the statement is material to the lawful
    sale of the firearm. Id. Assuming, then, that the statement in
    the Certification Letter was material to the lawfulness of the
    sale, a proposition which Karani does not challenge, it was
    actionable under § 922(a)(6).
    15 In the first question, the jury requested a copy of the
    indictment, which the court provided. In the second question, the
    jury again asked for a transcript of Karani's testimony and also
    requested a transcript of the testimony of one of the government's
    witnesses.    The court informed the jury that the requested
    transcripts could not be prepared "within a reasonable time."
    16 In the additional question, the jury asked the court
    "[p]ursuant to [its] last answer, what [qualifies as] a 'reasonable
    time'" for the requested transcripts.      The court provided the
    requested transcripts to the jury the following business day.
    - 16 -
    directing the jury to disregard the Ilnicki Affidavit in Count 2.
    Yet, given the jury's continuing confusion about the focus of its
    deliberations, the court deemed it appropriate to provide the jury
    with the following supplemental verbal instruction:
    All of the Counts, 1, 2, 3 and 4, allege that the
    false statement was that the [d]efendant was the
    actual purchaser, and that was made on Form 4473.
    Now, for each count, it's the same allegation on
    each count and the same form for each count. Count
    1 also alleges substantially the same false
    statement on an affidavit that says that he bought
    for official use and not for resale.
    For purposes of 4473, in all counts he is an actual
    purchaser if he buys for his own use or is buying
    to make a gift of the firearm to someone else. For
    purposes of the affidavit in Count 1, he is a buyer
    if he bought for official use and not for resale.
    Those are the facts that you need to examine the
    evidence, as to which you need to examine and as to
    which you make a determination. Did he buy for his
    own use or did he buy for official use or did he
    buy for resale. . . .
    So that is really what I can explain to you. I'm
    not sure I can give you a whole lot more explanation
    and now the question for you is does that explain
    enough for you to be able to determine your verdict?
    The foreperson responded "No," and again asked about the
    Ilnicki   Affidavit   and   its   relation   to   Count   2.   The   court
    responded: "Don't worry about Count 2.        The affidavit in Count 2
    you can ignore."      To clarify further the jury's task, the court
    explained that the jury
    should first look at 4473 and see whether [Karani]
    falsely made a statement on that. If you find he
    did not, then in Count 1 go to the affidavit. And
    - 17 -
    if he did not with respect -- if you find that he
    did not make a false statement under the affidavit
    on Count 1 as well, then you may find -- must find
    him not guilty. On Counts 2, 3 and 4, if you find
    he did not make a false statement knowingly on the
    form, 4473, then you also must find him not guilty
    as to Counts 2, 3 and 4.
    The jury submitted yet another question to the court on
    the morning of the sixth trial day:
    Sorry for continuing to ask questions regarding the
    affidavit in Count 1, but assuming the jury is
    unable to reach a consensus in regards to whether
    the [d]efendant knowingly made a false statement on
    the 4473, but can [all capitals double underlined]
    reach a consensus that he lied on the affidavit
    knowingly, would the jury find the [d]efendant
    guilty on Count 1 or would it continue to be hung?
    The court17   conferred with counsel and provided the
    following verbal answer: "[Y]es, if the jury finds unanimously
    that the [d]efendant knowingly made a false statement in the
    affidavit,   then   the   jury   should    return   a   guilty   finding   on
    Count 1."     The court also gave the jury an Allen18 charge in
    response to its suggestion that it was hung.
    At this point, after the numerous exchanges between the
    court and the jury, this was the posture of the case: (1) a false
    17On the sixth day of trial, Judge Leo T. Sorokin covered for
    Judge Rya W. Zobel, who was unavailable.
    18An Allen charge is a "supplemental jury instruction given
    by the court to encourage a deadlocked jury, after prolonged
    deliberations, to reach a verdict."   Allen Charge, Black's Law
    Dictionary (11th ed. 2019); see also Allen v. United States, 
    164 U.S. 492
    , 501-02 (1896).
    - 18 -
    statement that Karani was the actual buyer of the DePasquale gun
    on ATF Form 4473 was sufficient to sustain a conviction on Count 1
    and necessary to sustain a conviction on Count 3; (2) a false
    statement that the DePasquale gun was for on or off duty use and
    not for resale on the Certification Letter was an independent basis
    for conviction on Count 1; (3) a false statement that Karani was
    the actual buyer of the Ilnicki gun on ATF Form 4473 was necessary
    for a conviction on both Counts 2 and 4; and (4) a false statement
    on the Ilnicki Affidavit charged in Count 2 was no longer a basis
    for conviction on Count 2.
    Approximately   one   hour   later,   the   jury   reported   by
    general verdict that it had found Karani guilty on Counts 1, 2,
    and 4, and not guilty on Count 3.19
    II.
    Karani argues that his convictions must be vacated, and
    a new trial ordered, because of prejudicial errors in the jury
    instructions.   First, he asserts that the court's instructions and
    19 The convictions on Counts 1, 2, and 4 have this internal
    logic. The jury must have determined that Karani's statement that
    he was the actual buyer of the Ilnicki gun on Form 4473 was false
    because that statement was the sole basis for a guilty verdict on
    Counts 2 and 4. The jury found no falsity in Karani's statement
    that he was the actual buyer of the DePasquale gun on Form 4473
    because that statement was the sole basis for Count 3, on which
    Karani was acquitted. The jury's conviction on Count 1 must have
    been based on the Certification Letter alone because its acquittal
    on Count 3 meant that it necessarily found no falsity in the
    DePasquale Form 4473, the alternative basis for a conviction on
    Count 1.
    - 19 -
    supplemental   instruction   on   the   terms   "gift"   and   "actual
    purchaser" were incorrect and effectively directed a verdict for
    the government. Second, Karani avers that the court misrepresented
    the content and legal effect of the Certification Letter.          He
    contends that if either ground is insufficient on its own to
    warrant a new trial, the cumulative effect of the court's errors
    requires that outcome.
    A.   Standard of Review
    When addressing a preserved claim of legal error in jury
    instructions, we review de novo.        See, e.g., United States v.
    Figueroa-Lugo, 
    793 F.3d 179
    , 190-91 (1st Cir. 2015). This standard
    applies to Karani's challenge to the gift instruction.
    Karani concedes, however, that he did not preserve his
    objection to the court's actual purchaser instruction or the
    court's treatment of the Certification Letter. We therefore review
    those portions of the charge and the supplemental instructions for
    plain error.   United States v. Velázquez-Aponte, 
    940 F.3d 785
    , 800
    (1st Cir. 2019).    To demonstrate plain error, Karani must show
    that (1) the district court erred, and that (2) the error was clear
    and obvious, (3) it affected his substantial rights, and (4) it
    "seriously impaired the fairness, integrity, or public reputation
    of judicial proceedings."    
    Id. at 793
     (quoting United States v.
    Montañez-Quiñones, 
    911 F.3d 59
    , 63-64 (1st Cir. 2018)).
    - 20 -
    B.   Legal Background
    Karani was found guilty on Counts 1 and 2 of making a
    false statement during the purchase of a firearm in violation of
    
    18 U.S.C. § 922
    (a)(6), which provides, in relevant part:
    It shall be unlawful for any person in connection
    with the acquisition . . . of any firearm . . .
    knowingly to make any false or fictitious oral or
    written statement . . . with respect to any fact
    material to the lawfulness of the sale or other
    disposition of such firearm . . . .
    Karani does not contest the materiality of his statements on
    appeal, presumably because the Supreme Court has conclusively
    determined that statements regarding whether an individual is
    engaging in a straw purchase -- i.e., a sale in which an individual
    purchases a firearm on behalf of another while claiming the firearm
    is for himself -- are material to the lawfulness of a firearms
    purchase.     See Abramski v. United States, 
    573 U.S. 169
    , 188-89
    (2014).
    Relatedly,   
    18 U.S.C. § 924
    (a)(1)(A),   the    basis   for
    Karani's conviction on Count 4, prohibits an individual from
    "knowingly mak[ing] any false statement or representation with
    respect to the information required by [Chapter 44 of Title 18] to
    be kept in the records of [an FFL]."           Although there is some
    overlap between these two provisions, § 922(a)(6) encompasses all
    materially false statements made regarding the legality of the
    firearm     sale,   whereas   § 924(a)(1)(A)    lacks    a     materiality
    - 21 -
    requirement and applies only to statements made in records an FFL
    is required to maintain.
    The "twin goals" of these provisions, within the broader
    statutory scheme, are "to keep guns out of the hands of criminals
    and others who should not have them, and to assist law enforcement
    authorities in investigating serious crimes."              Abramski, 573 U.S.
    at   180.     Exercising     congressionally      delegated      authority,   the
    Attorney General authorized ATF to develop Form 4473 as a means of
    implementing these goals.        See id. at 172-73.
    The   Supreme    Court    has     explained    that   the    federal
    firearms laws reflect a congressional intent to regulate straw
    purchases regardless of whether the "true purchaser" -- i.e., one
    who sends an agent to the FFL to purchase a gun on his behalf --
    was lawfully entitled to possess the gun.                 Id. at 186-87.      The
    Court noted that Congress chose to enforce gun regulations by
    requiring a purchaser to transact directly with an FFL when that
    individual is purchasing a gun from the FFL.               Id.
    C.    The Gift Instruction
    ATF Form 4473 states that a person is an actual purchaser
    if he purchases a gun for his own personal use or as a gift.                  In
    its instructions to the jury, the district court defined a "gift,"
    as that term is used in Form 4473, as "[a] firearm, not [a]
    discount,"    that   is    transferred       voluntarily    "without     payment,
    without     compensation."        Karani       contends    that    the    court's
    - 22 -
    definition is inaccurate and, because the term is not defined in
    Form 4473 or the applicable statutes, the court erred in defining
    what constitutes a "gift" for the jury.
    We need look no further than the plain and ordinary
    meaning of the language in Form 4473, however, to conclude that
    the court properly defined a gift in these circumstances.                      Cf.
    Textron Inc. v. Comm'r of Internal Revenue, 
    336 F.3d 26
    , 31 (1st
    Cir. 2003) ("[I]f the language of a statute or regulation has a
    plain and ordinary meaning, courts need look no further and should
    apply the regulation as it is written.").                  The instructions to
    Question 11.a. state that an individual is an actual purchaser if
    he buys a "firearm as a gift for a third party."                  That language
    makes clear that it is the firearm itself -- not a discount or any
    other associated benefit of the transfer -- that must be "given."
    To discern when a firearm is transferred as a "gift," we
    look to the ordinary meaning of that term.                 Legal and non-legal
    dictionaries alike define a gift by using terminology comparable
    to   that     used   by    the   district    court   --    a   transfer   without
    remuneration.        See Gift, Black's Law Dictionary (11th ed. 2019)
    ("The   voluntary         transfer    of    property      to   another    without
    compensation");        Gift,     Merriam-Webster's     Collegiate    Dictionary
    (11th   ed.    2014)      ("[S]omething     voluntarily    transferred    by   one
    person to another without compensation").                 The Supreme Court has
    described a gift in these circumstances using similar language in
    - 23 -
    dicta.    See Abramski, 573 U.S. at 186-88 (explaining that ATF
    sought to allow bona fide gifts and prohibit straw purchases where
    an   individual   purchases    a      gun   on    behalf      of   another    with
    compensation or reimbursement); see also id. at 199 (Scalia, J.,
    dissenting)    (explaining    that,    under     the   government's       view,   a
    transfer lawfully qualifies as a gift "[s]o long as no money
    changes hands, and no agency relationship is formed").                    Based on
    the foregoing, we conclude that the district court properly defined
    the term "gift" in Form 4473 as a firearm, not a discount,
    transferred without compensation.
    Karani contends that he was nevertheless entitled to
    submit his own understanding of the term "gift" to the jury because
    his understanding of that term was inextricably intertwined with
    whether he (1) made a false statement on Form 4473 and (2) did so
    knowingly.    In making this argument, Karani relies first on United
    States v. DiRico, 
    78 F.3d 732
     (1st Cir. 1996).
    In DiRico, where materiality was an element of the
    offense, we reversed the district court's determination that the
    materiality of a statement on a tax return was a legal question
    for it, rather than the jury, to decide.           
    Id. at 736
    .       Although it
    was the duty of the court to "properly instruct the jury on the
    legal    definition   of   materiality,"         the   jury    had   to      decide
    materiality based on the evidence proffered at trial.                 
    Id.
    - 24 -
    Here, unlike in DiRico, the court did not remove an
    element of the offense from the jury's consideration.         Indeed, the
    term "gift" is not an element of the false statement offenses.
    Instead, it is a term relevant to the determinations that the jury
    had to make on the elements of the offenses -- for Counts 1 and 2:
    knowledge, falsity, and materiality; for Counts 3 and 4: knowledge,
    falsity, and appearance in a record that an FFL was required to
    keep by law.      The court had a responsibility to define the term
    "gift" because the jury's understanding of that term was essential
    to its determinations on the elements of the offenses.
    Moreover, contrary to Karani's assertion, the court's
    definition of "gift" did not necessitate a finding that his
    statements were false.      After the court informed the parties that
    it would instruct the jury that it must find that the firearm
    itself, not the discount, was a gift, Karani adjusted his defense.
    Although he still argued in closing that the discount was a gift,
    he also argued that the firearms themselves were gifts under the
    court's definition because he did not profit from their transfers,
    he expended time and resources for which he was not compensated,
    and he paid for the guns out-of-pocket before he was reimbursed.
    Thus, the court's definition of gift did not invade the duty of
    the jury to decide whether Karani's statements were false.
    We find similarly unavailing Karani's argument, relying
    on   Cheek   v.   United   States,   
    498 U.S. 192
       (1991),   that   his
    - 25 -
    understanding of the term "gift," even if it was wrong, was a
    mistake of law that was critical to the jury's determination of
    whether he knowingly made a false statement.                   In Cheek, the
    defendant was charged with willfully violating income tax laws.
    
    Id. at 194
    .    Although the defendant conceded that he violated the
    law, he argued that his violation was not willful because he
    sincerely believed that income taxes were unconstitutional.                   
    Id. at 195-96
    .      The district court instructed the jurors that an
    "objectively reasonable good-faith misunderstanding of the law
    would negate willfulness."         
    Id. at 196-97
    .      However, it also told
    them that the defendant's belief that he had no legal duty to pay
    taxes was not objectively reasonable.             
    Id.
         The Supreme Court
    reversed, explaining that the sincerity of the defendant's belief
    as   to   whether   he   had   a   legal   duty   to    pay   taxes,   even    if
    unreasonable, was a jury question because it went to the heart of
    whether he had committed a "willful" violation of the tax code.
    
    Id. at 203
    .
    Cheek is inapt precedent for Karani's knowledge-based
    claim of error.     As the Supreme Court has explained, the "highly
    technical"    tax   code   risks    "ensnaring    individuals     engaged     in
    apparently innocent conduct."         Bryan v. United States, 
    524 U.S. 184
    , 194 (1998).     To counteract that risk, "willful" mens rea in
    certain portions of the tax code requires specific intent to
    violate a known legal duty.         
    Id. at 193-96
    .       If the jury credits
    - 26 -
    a   defendant's       proffered      ignorance   or   misunderstanding   of    the
    specific legal duty he is charged with violating, he cannot be
    held criminally liable. Cheek, 
    498 U.S. at 202
    . Cheek thus carves
    out    a    limited      exception    for   certain   tax   violations   to    the
    traditional rule that a mistake of law does not excuse a violation
    of the law.20       See 
    id. at 203-04
    ; see also Bryan, 
    524 U.S. at
    194-
    96.
    In Bryan v. United States, to demonstrate the limited
    applicability of Cheek, the Court considered specifically whether
    
    18 U.S.C. § 924
    (a)(1)(D),21 which imposes an increased penalty for
    "willful" violations of certain federal firearms laws, carried a
    Cheek-like mens rea requirement, such that mistake of the law was
    a valid defense.           Bryan, 
    524 U.S. at 194-96
    .        Despite Congress'
    use of the same term -- willful -- the Court held that Cheek was
    inapplicable because the federal firearms laws did not present the
    same       danger   of    ensnaring     apparently     innocent   conduct     that
    motivated the decision in Cheek.              
    Id. at 195
    .     Hence, the Court
    20
    That ignorance of the law is no excuse for violation of the
    law is "deeply rooted in the American legal system." Cheek, 
    498 U.S. at 199
    . It is premised on the notion that "the law is definite
    and knowable" and, for that reason, we presume, unless Congress
    provides otherwise, that every person knows the law. 
    Id.
     (citing
    Oliver Wendell Holmes, Jr., The Common Law 47-48 (1881)).
    21
    Pursuant to § 924(a)(1)(D), "whoever willfully violates any
    . . . provision of [this chapter except as otherwise provided]
    shall be fined under this title, imprisoned not more than five
    years, or both."
    - 27 -
    held that "willful" in the federal firearms laws "d[id] not carve
    out an exception to the traditional rule that ignorance of the law
    is no excuse."     Id. at 196.
    Drawing on Bryan, we conclude that, if Cheek does not
    apply to a willful violation of the federal firearms laws, it
    likewise does not apply to the lesser, knowing violation at issue
    here.    See id. at 193 (explaining that a willful state of mind
    requires an "evil-meaning mind," which is more than a knowing state
    of mind). Indeed, we recognized as much in United States v. Meade,
    
    175 F.3d 215
     (1st Cir. 1999), although we considered a different
    subsection of the firearms laws.             There, we explained that "it
    simply    does   not    appear   plausible"    that   Congress   intended    a
    "knowing" violation of § 922(g), which criminalizes the possession
    of   a   firearm   by   prohibited    persons,    "to   carry    a   mens   rea
    requirement of actual knowledge of the law."            Meade, 
    175 F.3d at
    226 n.5; see also Acosta v. Loc. Union 26, UNITE HERE, 
    895 F.3d 141
    , 145 & n.5 (1st Cir. 2018) (explaining that courts presume,
    absent a material variation in the surrounding text, that a word
    bears the same meaning throughout a statutory provision).
    Accordingly, to prove a knowing violation of the federal
    firearms laws at issue here -- §§ 922(a)(6) and 924(a)(1)(A) --
    the government only needed to prove that Karani "knowingly [made]
    - 28 -
    a[] false . . . statement."22        In other words, it needed to show
    that when Karani signed the relevant documents affirming that he
    was purchasing the gun either for himself or as a gift for a third
    party, he knew the facts contrary to those representations -- i.e.,
    that he was purchasing a gun on behalf of another and would be
    reimbursed -- and, hence, he knew his statements were false.          To
    assist the jury in making that determination, the district court
    properly and accurately instructed the jury on the legal meaning
    of the term "gift," and, in doing so, did not direct a verdict on
    any element of the offense or otherwise invade the province of the
    jury.        We therefore detect no error in the district court's gift
    instruction.
    D.      Actual Purchaser Instruction
    Karani argues for the first time on appeal that there
    were multiple errors in the district court's actual purchaser
    instruction, which asked the jury to consider whether:
    [Karani was] buying the firearm for himself or as
    a gift for someone else or did he buy it for another
    with the intention to transfer the gun to that
    person with the expectation that the person would
    pay for it and did so, in which case he is not the
    actual purchaser.
    22
    The other requirements of either provision are not at issue
    here because (1) again, Karani does not challenge materiality under
    § 922(a)(6), and (2) the false statements alleged to violate
    § 924(a)(1)(A) in Counts 3 and 4 were made in Form 4473s, which
    are "required by [Chapter 44 of Title 18] to be kept in the records
    of [an FFL]," see 
    18 U.S.C. § 923
    (g); 
    27 C.F.R. § 478.124
    .
    - 29 -
    As noted above, we review this challenge only for plain error.
    See Velázquez-Aponte, 940 F.3d at 800.
    Karani initially contends that the actual purchaser
    instruction presupposed that a transfer of a firearm at a discount
    could never be considered a gift.        As we have explained, the
    availability of a discount does not render a firearm purchase a
    "gift." Accordingly, the district court did not err by instructing
    the jury that a gun purchased by someone who intends to transfer
    the firearm to someone else, with reimbursement for the cost, is
    not a "gift" and, hence, the transferor is not the actual buyer.
    Karani also objects to the actual purchaser instruction
    quoted above on the ground that the court directed the jury to
    find that Karani was not an actual purchaser because it used the
    facts of this case as an example, and stated that, under those
    facts, the defendant could not be considered an actual purchaser.
    This claim of error also fails.     Although it would be
    easy to mistake the example used in the court's instruction for
    the facts of this case -- an individual purchasing a gun for
    another with the expectation that the person would, and did, pay
    for the gun -- the instruction merely illustrated a quintessential
    straw purchase.   That Karani admitted to facts that have a strong
    resemblance to a typical straw purchase does not render the court's
    instruction erroneous.
    - 30 -
    Indeed, the district court mirrored language routinely
    used by the Supreme Court and our sister circuits in describing a
    straw versus actual purchaser.       See, e.g., Abramski, 573 U.S. at
    171-72 (describing a straw purchaser as "a person who buys a gun
    on someone else's behalf while falsely claiming that it is for
    himself"); United States v. Blake, 
    394 F.3d 1089
    , 1090 (8th Cir.
    2005) (describing a straw purchaser as one who "purchased [guns]
    from [FFLs] on behalf of others who provided the money for the
    guns"); United States v. Ortiz, 
    318 F.3d 1030
    , 1038 (11th Cir.
    2003) (identifying a straw transaction as one where the defendant
    "at the time of completing Form 4473 had no intention of keeping
    the firearms or giving them as a gift").
    Accordingly, we discern no error in the court's actual
    purchaser instruction.23
    E.   The Certification Letter
    Karani asserts that the district court committed several
    errors in instructing the jury on Count 1 concerning the substance
    and legal effect of the Certification Letter.        Those errors can be
    divided   into   two   categories:    (1)   claims     that   the   court
    mischaracterized the Certification Letter, and (2) claims that the
    court improperly instructed the jury on the significance of the
    23 Because we conclude that the district court's gift and
    actual purchaser instructions were not erroneous, we need not
    consider appellant's argument that the alleged errors were
    structural.
    - 31 -
    Certification Letter to Count 1.24       Karani concedes that these
    claims were not preserved and, therefore, we review for plain
    error.
    1. Mischaracterization of the Certification Letter
    Karani correctly points out that the district court
    inaccurately referred to the Certification Letter as an affidavit
    -- mirroring the language of the indictment -- and also misquoted
    the Certification Letter's language on several occasions.        He
    contends that these instructional errors resulted in an improper
    variance between the charges against him and the proof at trial.
    To prevail on a claim of improper variance, an appellant
    must "show a material factual difference between the crime charged
    in the indictment and the crime proved at trial."     United States
    v. Rodríguez-Milián, 
    820 F.3d 26
    , 33 (1st Cir. 2016).       He must
    also demonstrate that the variance resulted in prejudice.       
    Id.
    None of Karani's contentions concerning the Certification Letter
    satisfies these requirements.
    First, Karani argues that the court's instructions and
    supplemental instructions were improper because the Certification
    Letter was not signed under penalty of perjury and was, therefore,
    not an affidavit.    Karani is correct; the Letter was not an
    24Again, we note that Karani does not argue on appeal that
    the Certification Letter itself was a legally insufficient basis
    for his conviction on Count 1. See supra note 14.
    - 32 -
    affidavit.     Indeed, the government concedes as much, even though
    Count 1 of the indictment classifies the Certification Letter as
    an affidavit and both parties used that term to describe the
    Certification Letter at trial.         The Ilnicki Affidavit, which was
    signed under penalty of perjury and, as previously discussed,
    ultimately withdrawn from the jury's consideration on Count 2, was
    apparently the source of this confusion.
    Nevertheless, Karani fails to explain how the court's
    mischaracterization of the Certification Letter as an affidavit
    resulted in a material factual difference between the crime charged
    and the crime proven at trial, or prejudiced him in any way.          As
    we have already explained, to prove a violation of § 922(a)(6) on
    Count 1, the government had to prove only that Karani knowingly
    made a false statement that was material to the legality of the
    federal firearms purchase.25    The statute is not concerned with the
    form of the statement so long as it is material, and Karani does
    not   challenge    materiality.26      See   § 922(a)(6).   Whether   the
    Certification Letter was an affidavit is simply not relevant to
    whether a statement made within the document is a violation of
    25   See supra note 14 and Section II.B.
    26
    See supra note 14 and Section II.B. The allegedly false
    statement in the Certification Letter -- that the DePasquale gun
    was for "on or off duty use and . . . not . . . for resale" --
    was material to the lawfulness of the sale because it concealed
    that Karani was engaging in a straw purchase. See Abramski, 573
    U.S. at 188-89.
    - 33 -
    § 922(a)(6).     Accordingly, the court's errors did not cause a
    prejudicial variance.
    Second, Karani claims that the court instructed the jury
    that he declared on the Certification Letter that he purchased the
    DePasquale gun "for official use and not for resale," when, in
    fact, the Letter states that he purchased the firearm for "on or
    off duty use and . . . not . . . for resale."27     Karani contends
    that the jury could have found that he purchased the gun for his
    own off-duty use -- meaning that his statement on the Certification
    Letter would be true -- but convicted him based on the court's
    incorrect instruction that the Certification Letter stated that
    the gun was only for official use.      Karani further asserts that
    the jury must have relied on the Certification Letter in finding
    him guilty on Count 1.
    For reasons we have already explained, we agree with
    Karani's contention that the jury likely convicted him on Count 1
    based solely on his statements in the Certification Letter.28
    Nevertheless, Karani fails to demonstrate the requisite prejudice
    27 The court's instruction quotes the language in Count 1 of
    the indictment, which states that Karani "signed an affidavit that
    the purchase was for official use and not for resale." It is the
    Affidavit in Count 2, however, not the Certification Letter in
    Count 1, that states that Karani was purchasing the firearm to
    "directly or indirectly supply [himself] with a handgun for [his]
    official duties as a law enforcement official."
    28   See supra note 19.
    - 34 -
    resulting from the court's misstatement of the Letter's specific
    language.     The jury was given the Certification Letter and was
    therefore able to review the language itself.               Moreover, the
    distinction between a purchase for his own official or off-duty
    use is inconsequential in the circumstances of this case.                The
    question before the jury was whether Karani purchased the firearm
    for his own use (official or otherwise) or for resale.                   By
    insisting that he purchased the guns as gifts for his friends, he
    conceded that he did not purchase the guns for his own use.           Hence,
    the court's imperfect use of language had no impact on the trial
    and is not reversible plain error.
    2. Certification Letter's Significance to Count 1
    Karani argues that, mistaken description aside, the
    instructions     related     to   the      Certification     Letter     were
    substantively problematic in multiple respects.           He contends that
    the court (1) confused the jury by giving inconsistent instructions
    regarding whether the government was required to prove a false
    statement in both the Certification Letter and ATF Form 4473, as
    alleged in Count 1 of the indictment; (2) failed to address the
    duplicity in the indictment; and (3) overlooked the government's
    waiver of reliance on the Certification Letter as a basis for
    conviction on Count 1.      We address each argument in turn.
    a. Inconsistent instructions.        Karani is correct that
    the   court    provided    conflicting     instructions    concerning    the
    - 35 -
    significance of the Certification Letter to the Count 1 charge.
    In some parts of its instructions, the court told the jury that a
    false statement in either the Certification Letter or Form 4473
    could support a conviction on Count 1, and at other times it
    referenced only the statement in the Form 4473.29     At the end,
    however, when the jurors asked for clarification during their
    deliberations, the court instructed them, correctly, that either
    statement could form the basis for a conviction on Count 1.30   We
    presume jurors follow a district court's curative instruction.
    See e.g., United States v. Sepulveda, 
    15 F.3d 1161
    , 1185 (1st Cir.
    1993).
    b. Duplicitous indictment.   Count 1 of the indictment
    states that Karani "represented on ATF Form 4473 that he was the
    actual transferee/buyer of the firearm and signed an affidavit
    29 For example, the court explained to the jury that the
    "indictment charges that the Defendant represented on 4473 that he
    was the actual purchaser of the firearm, and at the end of Counts
    1 and 2 signed an affidavit that the purchase was for official use
    and not for resale." Docket No. 109, at 66. In another instance,
    the court stated that "[a] false statement is one that gives
    information that is not true or correct.     Here the Defendant's
    answer to Question 11A on this Form 4473, that he was the actual
    purchaser of the firearm, that's the alleged false statement."
    Docket No. 109, at 65.      In yet another instance, the court
    explained to the jury that Counts 1 and 2 alleged that Karani made
    a false statement by representing on "ATF Form 4473 as to each
    sale that he was the actual buyer for his own official use and was
    not buying for resale when he actually did buy to sell to someone
    else." Docket No. 109, at 64.
    30See supra Section I.F. discussing the posture of the case
    following the court's several supplemental instructions.
    - 36 -
    that the purchase was for official use and not for resale."
    (Emphasis added.) Karani claims that the indictment's use of "and"
    required the government to prove a false statement in both the
    Form 4473 and the Certification Letter and, for that reason, the
    district court improperly instructed the jury that Karani could be
    found guilty on Count 1 based on either one of the two documents.
    Although this claim highlights a flaw in the indictment,
    Karani's   assertion    of   error   in   the   court's   instructions   is
    unavailing.    Because the indictment charges two distinct and
    complete violations of the same statute in a single count joined
    by the conjunctive "and," it is duplicitous.         See United States v.
    Newell, 
    658 F.3d 1
    , 22 (1st Cir. 2011) ("[T]his indictment [i]s
    duplicitous in consolidating multiple complete offenses under
    single counts.").      The remedy for a duplicitous indictment is a
    specific unanimity instruction to ensure that the jury understands
    that its verdict must be unanimous as to which instance of the
    alleged statutory violation resulted in a crime.            See 
    id. at 28
    ("[T]he failure to provide a specific unanimity instruction [for
    the duplicitous charges] was error."). The district court provided
    such an instruction:
    It is enough if [the government] proves that
    [d]efendant made a false statement on either Form
    4473 or the affidavit or on both documents, but all
    12 of you have to be in agreement as to one or the
    other or both; that if all of you do not agree that
    the [d]efendant made a false statement in at least
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    one of these documents and which one, you must find
    him not guilty.
    No more was required.31
    c. Government waiver. Finally, to the extent that Karani
    argues that the court's instructions failed to account for the
    government's abandonment of the Certification Letter as a basis
    for conviction on Count 1, his argument fails.            Although the
    government did not use the phrase "Certification Letter" in its
    closing   argument,    the   government   referred   generally   to   the
    substance of the Certification Letter and referenced the Letter
    itself consistently throughout trial -- in its opening statement,
    in direct examination of the various witnesses, and in cross-
    examination of Karani. Accordingly, the government did not abandon
    reliance on the Certification Letter, and Karani's argument that
    the court committed plain error in failing to so instruct the jury
    fails.
    Affirmed.
    31 Any error resulting from the court's pronouncement that
    there is a general indictment convention that, without limitation,
    "'and' means 'or' and 'or' also means 'and,'" was harmless because
    the court properly addressed the duplicitous indictment by
    instructing the jury in the disjunctive and providing a unanimity
    instruction. See Newell, 
    658 F.3d at 28
    .
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