United States v. Cadden ( 2020 )


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  •           United States Court of Appeals
    For the First Circuit
    Nos. 17-1694, 17-1712, 17-2062
    UNITED STATES OF AMERICA,
    Appellee, Cross-Appellant,
    v.
    BARRY J. CADDEN,
    Defendant, Appellant, Cross-Appellee.
    APPEALS FROM THE UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF MASSACHUSETTS
    [Hon. Richard G. Stearns, U.S. District Judge]
    Before
    Barron, Stahl, and Lipez,
    Circuit Judges.
    Bruce A. Singal, with whom Michelle R. Peirce, Lauren E.
    Dwyer, and Barrett & Singal, P.C. were on brief, for
    appellant/cross-appellee.
    David M. Lieberman, Attorney, Criminal Division, Appellate
    Section, United States Department of Justice, with whom Andrew E.
    Lelling, United States Attorney, Amanda P. Strachan, Assistant
    United States Attorney, George P. Varghese, Assistant United
    States Attorney, Brian A. Benczkowski, Assistant Attorney General,
    and Matthew S. Miner, Deputy Assistant Attorney General, were on
    brief, for appellee/cross-appellant.
    July 9, 2020
    BARRON, Circuit Judge.              For years, the New England
    Compounding    Center   ("NECC")   was     a    growing    pharmacy   business
    engaged in the practice of "compounding," which involves combining
    drugs with other substances to produce specialized medications for
    use by patients.    In the fall of 2012, however, patients across
    the country became seriously ill -- and many eventually died --
    after receiving injections of NECC-compounded medications that had
    been contaminated by fungi and bacteria.                  A federal criminal
    investigation into NECC's compounding practices soon followed,
    which then led to the convictions and punishments that are at issue
    in the two related appeals that are now before us.
    The first of these appeals is brought by Barry Cadden,
    who was the founder and part-owner, as well as the president, of
    NECC at the time that the company manufactured and distributed the
    contaminated    medications   from   its        facilities   in   Framingham,
    Massachusetts.    He challenges his 2017 federal convictions in the
    United States District Court for the District of Massachusetts for
    one count of racketeering, see 18 U.S.C. § 1962(c); one count of
    racketeering conspiracy, see
    id. § 1962(d);
    fifty-two counts of
    mail fraud, see
    id. § 1341;
    and three counts of violating the
    Federal Food, Drug, and Cosmetic Act, see 21 U.S.C. §§ 331(a),
    333(a).   He also challenges the $7.5 million forfeiture order that
    the District Court imposed on him.               The other appeal that we
    address is brought by the government.             It takes aim at both the
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    District Court's forfeiture order against Cadden and the 108-month
    prison sentence that he received.
    We affirm each of the convictions that Cadden challenges
    on appeal.     We vacate and remand his prison sentence due to the
    errors that the government correctly points out that the District
    Court made in calculating Cadden's recommended sentencing range
    under the United States Sentencing Guidelines ("Guidelines").            We
    also vacate and remand the forfeiture order in consequence of
    separate errors that Cadden and the government, respectively,
    identify in the way that the District Court determined the amount
    of the forfeiture.
    I.
    For years, NECC produced large volumes of compounded
    medications and sold them without incident to hospitals and other
    medical facilities throughout the United States.              In the early
    fall of 2012, however, patients across the country started to fall
    sick with fungal meningitis, spinal or paraspinal infections, and
    other seemingly related illnesses.          Over time, additional cases of
    patients   suffering    from   these    illnesses   arose   throughout   the
    United States that seemed to be tied to the earlier ones.
    A federal investigation into this unusual outbreak of
    seemingly related illnesses ensued. It traced the outbreak's cause
    to patients having been injected with a heavily contaminated
    medication     that   NECC   had   compounded.      That    medication   was
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    methylprednisolone acetate ("MPA"), which is a steroid that is
    injected primarily into the backs or knees of patients to help
    them to alleviate their pain.
    At that point, federal investigators began looking into
    NECC's compounding practices.        The investigators discovered what
    they determined were significant deficiencies in the clean room
    where NECC had compounded the contaminated MPA as well as in other
    aspects of NECC's operations. Among the deficiencies were apparent
    violations of Chapter 797 of the "United States Pharmacopeia," or,
    as it is otherwise known, "USP-797," which the Massachusetts
    Pharmacy Board requires pharmacists to follow, see 247 Mass. Code
    Regs. 901(3), and which regulates the compounding of "high-risk"
    sterile medications like MPA.       Such medications are so deemed due
    to the nature of the harm that can befall patients who use them if
    they have not been properly prepared.               The investigation also
    revealed that NECC had employed a pharmacy technician, Scott
    Connolly, who did not have a license that the Massachusetts
    Pharmacy Board required in order for him to be permitted to engage
    in the compounding work that he performed for the company.
    Based    on   the   investigation,       a    federal    grand     jury
    indicted   Cadden   on   December    16,    2014,       in   the   District    of
    Massachusetts for a broad range of criminal conduct. These charges
    included fifty-three counts of mail fraud in violation of 18 U.S.C.
    § 1341, one count of racketeering in violation of 18 U.S.C.
    - 5 -
    § 1962(c), one count of racketeering conspiracy in violation of 18
    U.S.C. § 1962(d), one count of conspiracy to defraud the United
    States in violation of 18 U.S.C. § 371, and forty-one counts of
    Federal Food, Drug, and Cosmetic Act ("FDCA") violations, see 21
    U.S.C. §§ 331(a), 333(a).
    Many     of      the        charges        centered        on      fraudulent
    representations that NECC representatives had allegedly made to
    customers about the safety standards that the company followed in
    compounding various medications -- including the contaminated MPA
    -- that were shipped to customers between March 25, 2010, and
    September 27, 2012.       In particular, each of the fifty-three mail
    fraud    counts     identified      a       specific     shipment       of    compounded
    medications that NECC sent to one of its customers after having
    made    inaccurate    representations           to     that    customer       about   the
    standards NECC would adhere to in preparing those medications.
    The racketeering and racketeering conspiracy charges,
    too, were based on a "pattern of racketeering activity," 18 U.S.C.
    1961(5),    that    centered       on   mail        fraud,    see
    id. § 1961(1)(B)
    (defining    mail    fraud     as       a    "racketeering          activity").       The
    racketeering offense itself alleged seventy-eight separate acts of
    racketeering as part of that pattern, of which the lion's share
    -- fifty-three acts -- were mail fraud acts that matched the
    alleged mail fraud acts set forth in the corresponding counts that
    charged Cadden with mail fraud as a stand-alone offense.                              The
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    racketeering conspiracy charge, moreover, alleged that Cadden
    conspired with others to commit a racketeering violation involving
    a pattern of racketeering activity consisting of predicate acts of
    racketeering involving mail fraud, although it did not identify
    any of those acts of mail fraud specifically.
    Even though many of the charges against Cadden centered
    on alleged misrepresentations about NECC's compounding practices
    to its customers, the one for racketeering was not based only on
    such allegations.       And, as we will explain, a number of the issues
    that Cadden raises on appeal concern the fact that the racketeering
    charge alleged not only that Cadden's pattern of racketeering
    activity involved fifty-three predicate acts of mail fraud but
    also that it involved twenty-five predicate acts of second-degree
    murder,   which   is    itself   a   racketeering     activity.         See
    id. § 1961(1)(A).
        Each of these alleged predicate acts of second-
    degree murder was associated with a death of a patient that
    allegedly had been caused by that individual having been injected
    with the contaminated MPA that NECC had compounded.            (By the time
    of Cadden's trial, 753 patients had been identified as having been
    afflicted    in   the    outbreak    that    had   been   traced   to    NECC's
    contaminated MPA, of whom sixty-four had died in consequence of
    having been injected with that medication.)
    The indictment charged thirteen others along with Cadden
    for their roles in alleged criminal conduct connected to NECC's
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    compounding    operations.          The    District   Court    severed    Cadden's
    trial, however, from those for the others.                Moreover, near the end
    of Cadden's ten-week trial, the District Court dismissed one of
    the stand-alone mail fraud counts that Cadden faced, as well as
    the alleged predicate act of racketeering involving mail fraud
    that corresponded to that stand-alone mail fraud count.
    The    jury      ultimately       found    Cadden    guilty     of    the
    racketeering and racketeering conspiracy counts, all fifty-two of
    the remaining stand-alone mail fraud counts, and three of the FDCA
    violations, each of which related to the introduction of misbranded
    drugs into interstate commerce.              Cadden was found not guilty both
    of conspiring to defraud the United States and of the other FDCA
    counts.   In a special verdict form, moreover, the jury indicated
    that,   with   respect      to    the     racketeering     charge,   it   did    not
    unanimously find beyond a reasonable doubt any of the alleged
    predicate acts of racketeering involving second-degree murder.
    The special verdict form further indicated that the jury found
    forty-seven      of   the        fifty-two      alleged    predicate      acts   of
    racketeering involving mail fraud, and thus it was on the basis of
    those mail-fraud-based predicate acts of racketeering alone that
    the jury's finding that there was a "pattern of racketeering
    activity" depended.
    The District Court entered judgments of conviction and
    sentenced Cadden to a prison term that was at the very high end of
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    the range that it had calculated under the Guidelines: 108 months'
    imprisonment.   Based on Cadden's racketeering and racketeering
    conspiracy   convictions,   the    District   Court   also   imposed   a
    forfeiture order on him in the amount of $7,545,501.           Cadden's
    appeal and the government's appeal followed.
    II.
    Cadden first takes aim at the sufficiency of the evidence
    to support the allegations of mail fraud that underlie thirty of
    his fifty-two stand-alone mail fraud convictions1 as well as his
    two convictions for, respectively, racketeering2 and racketeering
    1 The federal criminal statute outlining the crime of mail
    fraud reads as follows:
    Whoever, having devised or intending to devise any
    scheme or artifice to defraud, or for obtaining money or
    property by means of false or fraudulent pretenses,
    representations, or promises . . . for the purpose of
    executing such scheme or artifice or attempting so to
    do, places in any post office or authorized depository
    for mail matter, any matter or thing whatever to be sent
    or delivered by the Postal Service, or deposits or causes
    to be deposited any matter or thing whatever to be sent
    or delivered by any private or commercial interstate
    carrier, or takes or receives therefrom, any such matter
    or thing, or knowingly causes to be delivered by mail or
    such carrier according to the direction thereon, or at
    the place at which it is directed to be delivered by the
    person to whom it is addressed, any such matter or thing,
    shall be fined under this title or imprisoned not more
    than 20 years, or both.
    18 U.S.C. § 1341.
    2 The provision of the racketeering statute that Cadden was
    alleged to have violated states that
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    conspiracy.3         In challenging these convictions on this ground,
    Cadden zeroes in on whether the evidence sufficed to support, with
    respect to any of these convictions, a finding beyond a reasonable
    doubt       that   the   alleged   fraudulent   representation   by   an   NECC
    representative on which each conviction depended in fact had been
    made.       In the alternative, he contends that the evidence did not
    suffice to show that the representation -- even if made -- was
    material, as it must have been for the government to prove the
    alleged mail fraud.           Thus, he contends on the basis of these
    arguments that each of these convictions must be reversed.
    We begin our analysis with the challenges that Cadden
    brings to the stand-alone mail fraud convictions.           We then turn to
    the essentially identical challenges that Cadden makes to his
    racketeering and racketeering conspiracy convictions.             We find no
    merit to any of them.
    [i]t shall be unlawful for any person employed by or
    associated with any enterprise engaged in, or the
    activities of which affect, interstate or foreign
    commerce, to conduct or participate, directly or
    indirectly, in the conduct of such enterprise’s affairs
    through a pattern of racketeering activity or collection
    of unlawful debt.
    18 U.S.C. § 1962(c).
    3
    The racketeering conspiracy statute states that "[i]t shall
    be unlawful for any person to conspire to violate any of the
    provisions of subsection (a), (b), or (c) of this section." 18
    U.S.C. § 1962(d). Cadden was alleged to have conspired to violate
    18 U.S.C. § 1962(c).
    - 10 -
    A.
    For the thirty stand-alone mail fraud convictions at
    issue, the government needed to prove beyond a reasonable doubt:
    "(1) a scheme to defraud based on false pretenses; (2) [Cadden's]
    knowing and willing participation in the scheme with the intent to
    defraud; and (3) the use of interstate mail . . . communications
    in furtherance of that scheme."             United States v. Soto, 
    799 F.3d 68
    , 92 (1st Cir. 2015) (alteration in original) (quoting United
    States v. Hebshie, 
    549 F.3d 30
    , 35 (1st Cir. 2008)); see also 18
    U.S.C. § 1341.4      We start with the ten stand-alone mail fraud
    convictions that concern, respectively, ten separate shipments of
    cardioplegic solution that NECC had made between March 25, 2010,
    and August 8, 2012, and that had been produced with the assistance
    of the NECC pharmacy technician, Scott Connolly, who lacked a
    license      from   the    Massachusetts        Board   of    Pharmacy      that
    Massachusetts law required him to have to engage in the work that
    he performed for the company.          We then address the twenty other
    stand-alone mail fraud convictions that Cadden challenges.                  Each
    of   these   convictions    is   for   a     count   that   rests   on   alleged
    fraudulent representations concerning other shipments that NECC
    4While the jury convicted Cadden on all fifty-two of the mail
    fraud counts and found that he committed forty-seven of the
    corresponding predicate acts, it did not find that he committed
    five charged predicate acts of mail fraud relating to shipments of
    expired drugs -- even though it found Cadden guilty of the five
    mail fraud counts relating to those same shipments.
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    made to its customers between July 7, 2011, and September 27, 2012.
    These     convictions     were      premised         on    allegedly       fraudulent
    representations that NECC's representatives made to customers of
    the   company   that    have    nothing        to   do    with   either    Connolly's
    involvement in the compounding process or technician licensure at
    the company more generally.               Instead, these convictions were
    premised on alleged fraudulent representations about, among other
    things, the company's compliance with USP-797.
    1.
    Cadden's challenges to each of the ten Connolly-related
    convictions rest on the contention that the evidence in the record
    does not suffice to show that NECC had falsely represented to the
    customer that received any of the shipments associated with these
    convictions that only licensed pharmacy technicians were involved
    in compounding them.       Cadden acknowledges that Connolly, who was
    not licensed, helped in compounding the medications contained in
    those shipments.        But, he contends that there is no basis for
    finding that each of the shipments had been distributed pursuant
    to a scheme to defraud.         That is so, he contends, because, by the
    government's own account, the fraudulent scheme alleged in these
    ten mail fraud counts involved as a necessary component the company
    falsely    representing        to   its    customers        that    only     licensed
    technicians had been used in compounding its medications.
    - 12 -
    Our review of this preserved challenge is de novo.                See
    United States v. Diaz, 
    300 F.3d 66
    , 77 (1st Cir. 2002).                        In
    undertaking this review, though, we must assess the record evidence
    "in the light most favorable to the prosecution" and affirm so
    long as the "body of proof, as a whole, has sufficient bite to
    ground a reasoned conclusion that the government proved each of
    the elements of the charged crime beyond a reasonable doubt."
    United States v. Lara, 
    181 F.3d 183
    , 200 (1st Cir. 1999).
    Cadden's sufficiency challenge plainly fails as to the
    three   Connolly-related       convictions      that   were      based   on   the
    shipments of cardioplegic solution that NECC sent to Sunrise
    Medical Center.    The record includes the testimony of Wilson Chu,
    the pharmacy director at Sunrise Medical Center.                  Chu testified
    that NECC's use of an unlicensed pharmacy technician would have
    been a "red flag" if he had known about it and his employer would
    not have done business with NECC in consequence.              The record also
    includes Chu's testimony that communications from NECC led him to
    "[d]efinitely" think that such technicians would be licensed while
    working there.    No more was needed to permit a juror reasonably to
    find the allegedly fraudulent representations about technician
    licensure on which these three convictions depend had been made.
    Representatives     of    the     customers    who    received    the
    shipments   at    issue   in   the    seven    remaining      Connolly-related
    convictions did not testify       -- in the way that Chu had testified
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    with respect to the shipments to Sunrise Medical Center -- about
    what NECC had represented to them about technician licensure. But,
    we conclude, the circumstantial evidence in the record was strong
    enough to make up for that evidentiary gap.              We thus reject
    Cadden's sufficiency challenges to these convictions, too.
    Kenneth Boneau, a salesperson for NECC, testified that
    the company was keenly aware in making its pitches to prospective
    customers   that   they   might   be   reluctant   to   purchase   from   a
    compounding pharmacy like NECC, due in part to concerns about price
    and in part to concerns about the need for every medication ordered
    from NECC to be matched to a patient who would be receiving a
    requested medication that the company would compound. Thus, Boneau
    testified, an important part of NECC's pitch to its prospective
    customers was that, as an outside pharmacy, it had a "commitment
    to quality" that better ensured that the products that it produced
    would not be contaminated than the hospitals or medical facilities
    could ensure if they were to make such products on their own.             In
    fact, to that end, Boneau testified, NECC presented itself to
    prospective customers as "the Rolls-Royce of compounding."
    In addition, the government put forth evidence that
    directly addressed the representations that the company made -- in
    making this pitch about quality control -- to prospective customers
    about pharmacy technician licensure.       Here, the government's case
    consisted not only of the testimony from Chu described above but
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    also of Boneau's testimony about a particular exhibit that the
    government introduced at trial and in which he described the
    exhibit as "our marketing material . . . for hospitals."
    The cover page of that exhibit was labeled with the NECC
    logo and the word "Hospital," and the material inside indicated
    that it included a "Company Overview" of NECC.                     Boneau also
    explained in his testimony that he personally "would bring" this
    material with him on visits to potential customers and that, over
    the course of his time working for NECC, he "[l]eft it behind . . .
    probably hundreds of times."              He further testified that while
    "oftentimes" he left it at "an ophthalmology department or a pain
    department within a hospital . . . most of the time" he left it at
    a hospital's "inpatient pharmacy."
    Significantly, this marketing material, as part of the
    "Company Overview," made representations about the qualifications
    of    NECC's     "Personnel."    Those      representations    included     the
    statement that NECC's personnel included "Highly Specialized and
    Extensively       Trained   Compounding       Pharmacists     and     Certified
    Technicians."       (emphasis added).
    The reference to the use of "Certified Technicians"
    permitted the inference that those technicians, because they were
    certified, would have had a license that a state pharmacy board
    required them to have.       Nor does Cadden dispute that the customers
    who   received     the   shipments   on    which   these   seven    convictions
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    depended     were   "hospitals"       within     the     meaning   of    Boneau's
    testimony.
    Thus, we conclude that a juror reasonably could find
    that there was a sufficient circumstantial basis to draw the
    inference that the allegedly fraudulent representations concerning
    technician licensure had been made in each instance for these seven
    convictions, notwithstanding the absence of direct evidence to
    that effect.     See United States v. Ridolfi, 
    768 F.3d 57
    , 61 (1st
    Cir. 2014) (noting that a jury may make "reasonable, common sense
    inferences    drawn   from    the    evidence").         Accordingly,    Cadden's
    sufficiency challenge to these seven Connolly-related convictions
    for the stand-alone offense of mail fraud fails, just as it fails
    as to the other three Connolly-related stand-alone mail fraud
    convictions.
    Cadden does separately contend that the evidence did not
    suffice to show that any of the customers who received shipments
    on which the ten Connolly-related convictions depend -- Sunrise
    Medical Center included -- received the supposedly fraudulent
    representation about technician licensure after NECC had hired
    Connolly.     But, Cadden identifies no evidence to indicate that,
    once   Connolly     came     on     board,     NECC,     through   any   of   its
    representatives (including Cadden himself), corrected any prior
    representation that licensed pharmacy technicians would be used
    even though Connolly was not licensed.                 A juror reasonably could
    - 16 -
    find,   therefore,   that   NECC's     decision   to   produce     and   ship
    medications compounded by someone who was not a licensed pharmacy
    technician after the company had represented otherwise to its
    customers itself constituted a use of the mails in furtherance of
    a fraudulent scheme.
    Finally, Cadden shifts his angle of attack and focuses
    on what he contends is the lack of record evidence sufficient to
    show that any of the misrepresentations concerning technician
    licensure induced any customer to make a purchase from NECC.             But,
    there is no force to this contention, which takes aim at the
    evidentiary support for the materiality element of mail fraud.
    See United States v. Prieto, 
    812 F.3d 6
    , 13 (1st Cir. 2016) (noting
    the existence of a materiality requirement).
    To secure a mail fraud conviction, the government "need
    not prove that the decisionmaker actually relied on the falsehood,"
    so long as the falsehood that was made is a "material" one.
    Id. (first quoting
    United States v. Appolon, 
    715 F.3d 362
    , 368 (1st
    Cir. 2013)).   To prove materiality, the government need only show
    that the false statement "had 'a natural tendency to influence, or
    [was] capable of influencing'" its target's decision.
    Id. (quoting Appolon,
    715 F.3d at 368); see also United States v. Berroa, 
    856 F.3d 141
    , 149-50 (1st Cir. 2017) (explaining that, under the mail
    fraud   statute,   the   defendant's   fraud   must    be   "the   mechanism
    - 17 -
    naturally inducing" the victim to act (quoting Loughrin v. United
    States, 
    573 U.S. 351
    , 363 (2014))).
    Reviewing the sufficiency of the evidence of materiality
    de novo, see United States v. Sebaggala, 
    256 F.3d 59
    , 63 (1st Cir.
    2001), we find that the evidence sufficed here.             Chu's testimony
    about the importance of pharmacy technician licensure to his
    hospital's purchasing decisions clearly permitted a reasonable
    juror to find the materiality element satisfied as to the three
    Connolly-related   convictions       that   involved   shipments   of   NECC
    medications to Sunrise Medical Center.           But, that same testimony
    --   in   combination   with   the    emphasis     placed   on   "Certified
    Technicians" in the marketing materials that Boneau testified that
    NECC routinely used to pitch its products to hospitals -- also
    supported the reasonable inference that a representation about
    pharmacy technician licensure would have mattered to such NECC
    customers generally.    Accordingly, we reject Cadden's materiality
    challenge to these ten convictions.
    2.
    Having rejected Cadden's challenges to the ten Connelly-
    related convictions, we now come to his challenges to the twenty
    other stand-alone mail fraud convictions that he asks us to reverse
    for insufficient evidence.     Here, too, his contention is that the
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    evidence       did     not     suffice     to     show       that     the      fraudulent
    representations on which they depended had been made.5
    The government contends that our review is only for
    plain       error,    but    Cadden's    reply    below       to    the     government's
    opposition to the motion for judgment of acquittal raised these
    same challenges.            Thus, our review is de novo, although we still
    must review the evidence in a verdict-friendly light.                          See 
    Diaz, 300 F.3d at 77
    ; 
    Lara, 181 F.3d at 200
    .
    The     government       identifies       a    range       of    allegedly
    fraudulent representations for each of these twenty convictions
    that it contends were adequately supported by the record evidence.
    But, we need not focus on what the evidence showed as to whether
    each of those allegedly fraudulent representations had been made.
    It is enough, as we will explain, that the evidence sufficed to
    support       a      juror    finding     that     the       allegedly         fraudulent
    representations concerning NECC's compliance with USP-797 had been
    made.       And that is because, as Cadden does not dispute, the mail
    fraud count for each of these twenty convictions alleged that such
    a representation had been made to the customer who received the
    5
    Cadden does not contest that the record evidence supportably
    showed that each customer involved in the remaining twenty-two
    mail fraud counts received a fraudulent representation. He limits
    his challenge to the twenty counts he identifies because no
    representatives from customers of shipments identified in these
    counts testified at trial about the representations they received
    from NECC.
    - 19 -
    shipments referenced in each of those counts.                         See United States
    v.   Gaw,    
    817 F.3d 1
    ,    5    (1st   Cir.     2016)       (holding     that    where
    "alternative,        independently            sufficient       grounds"         exist     for
    upholding a conviction, "adequate proof of one obviates any need
    for proof of the other" and the conviction can be affirmed on one
    ground alone (quoting United States v. Cruz–Arroyo, 
    461 F.3d 69
    ,
    73 (1st Cir. 2006))).
    Specifically,            the   record     shows       that   numerous       NECC
    salespersons testified that NECC touted the company's adherence to
    the USP-797 standards in their communications with customers, and
    that   one    salesperson,            Boneau,    even       testified      that    USP-797
    compliance was "a big selling point" for NECC that Cadden himself
    had emphasized. In addition, the evidence contained NECC marketing
    materials that highlighted the company's supposed compliance with
    USP-797, and several NECC customers testified that they received
    representations            from        marketing           materials       and      company
    representatives       that        indicated     that        NECC    was   following       the
    standards laid out in USP-797.
    We thus reject Cadden's contention that the evidence
    failed to suffice to permit a juror reasonably to find that a
    fraudulent representation concerning USP-797 compliance had been
    made   to    each    of    the     customers,        for    each    of    the    referenced
    shipments, for these twenty stand-alone mail fraud convictions.
    Instead, we conclude that the evidence sufficed to permit a juror
    - 20 -
    to draw such an inference in finding Cadden guilty of each of the
    twenty counts on which these twenty convictions were based.             See
    
    Ridolfi, 768 F.3d at 61
    (expressing approval of the jury's use of
    "reasonable, common sense inferences drawn from the evidence").
    Cadden does also contend that these twenty convictions
    must be reversed because the evidence did not suffice to show that
    the false representation about USP-797 compliance -- even if made
    -- was material as to any of the shipments involved.           But, here,
    too, the record shows otherwise.
    Many NECC customers testified that they relied on the
    company's representations that it was producing quality products
    that were USP-compliant, and the evidence made clear that such
    representations were a "big selling point."            We thus have no
    trouble concluding that a juror reasonably could find that the
    representations    regarding   USP-797    compliance    had    a   natural
    tendency to induce NECC's customers to purchase its products,
    especially given that this particular safety standard applied to
    those compounded medications that -- if prepared improperly --
    posed such a risk of harm to patients.
    B.
    That leaves only Cadden's sufficiency challenges to his
    racketeering and racketeering conspiracy convictions, insofar as
    these challenges also take aim at whether there was adequate
    evidence   that   the   fraudulent   representations   on     which   these
    - 21 -
    convictions depended -- given that they were for a pattern of
    racketeering activity based on mail fraud -- had been made. Cadden
    does not contend, however, that the mail fraud alleged to support
    these racketeering-related convictions is any different from the
    mail fraud alleged to support the thirty stand-alone mail fraud
    convictions that we have just addressed.        Thus, because the only
    arguments that Cadden makes to us as to why the evidence did not
    suffice to support those allegations of mail fraud are without
    merit, we must reject his sufficiency challenges to these two
    convictions as well.
    III.
    Cadden has one last set of sufficiency challenges to his
    convictions that we need to address.     This set concerns only his
    convictions for racketeering and racketeering conspiracy.        As to
    the racketeering conviction, Cadden contends that, even if the
    evidence sufficed to support the predicate acts of racketeering
    involving mail fraud that underlie it, it still must be reversed
    because the evidence did not supportably show that those mail-
    fraud-based predicate acts of racketeering, taken together, formed
    a "pattern of racketeering activity."         18 U.S.C. § 1962(c).   He
    then further contends that this same weakness in the government's
    case   also   renders   his    racketeering     conspiracy   conviction
    insufficiently supported.     But, we do not agree.
    - 22 -
    A.
    For there to be a "pattern of racketeering activity"
    there must be "at least two acts of racketeering activity."
    Id. § 1961(5).
        In addition, those predicate acts, each of which must
    have occurred within ten years of one another, see
    id., (1) must
    be "related" to each other, and (2) must "amount to or pose a
    threat of continued criminal activity."       H.J. Inc. v. Nw. Bell
    Tel. Co., 
    492 U.S. 229
    , 239 (1989).
    Cadden argues that the evidence did not suffice to show
    that the predicate acts of racketeering that the jury found
    satisfied, when considered together, either the "relatedness" or
    the "continuity" requirements.     He thus contends his racketeering
    conviction must be reversed because the evidence did not suffice
    to satisfy the "pattern" element of that racketeering offense.
    We first address the proper standard of review.   We then
    consider, in turn, his contentions regarding what the record shows
    about relatedness and continuity. We conclude, as we will explain,
    that there is no merit to any of them.
    1.
    The government contends that our review is only for plain
    error because Cadden failed to raise his "pattern of racketeering
    activity"-based challenge that he now presents to us on appeal in
    the motion for acquittal that he made below pursuant to Federal
    Rule of Criminal Procedure 29.     But, Cadden's post-verdict motion
    - 23 -
    for judgment of acquittal incorporated by reference his challenge
    to "the lack of relatedness or continuity of the remaining isolated
    mailings," which he had previously aired to the District Court in
    his motion to dismiss each of these racketeering-related counts.
    Our review of this challenge, therefore, is de novo, though, of
    course, we still must consider the evidence in the light most
    favorable to the verdict.       See 
    Diaz, 300 F.3d at 77
    ; 
    Lara, 181 F.3d at 200
    .
    2.
    We begin with Cadden's arguments about the insufficiency
    of the evidence as to the relatedness requirement.          The test for
    showing relatedness, however, "is not a cumbersome one." Feinstein
    v. Resolution Tr. Corp., 
    942 F.2d 34
    , 44 (1st Cir. 1991).             It
    merely requires "[a] showing that predicate acts 'have the same or
    similar purposes, results, participants, victims, or methods of
    commission,    or   otherwise   are    interrelated   by   distinguishing
    characteristics and are not isolated events.'"
    Id. (quoting H.J.,
    492 U.S. at 240).    We conclude that the evidence sufficed to show
    that test was met here.
    Cadden argues otherwise, first, by pointing to what he
    contends is an inconsistency in the state of mind of the defendant
    that the government was required to prove for second-degree murder
    compared to mail fraud.    But, while it is true that the indictment
    alleged both types of predicate acts of racketeering activity in
    - 24 -
    the racketeering charge, the special verdict form makes clear that
    the jury did not rely on the alleged predicate acts of racketeering
    activity based on second-degree murder to find the requisite
    "pattern of racketeering activity."        See United States v. Torres
    Lopez, 
    851 F.2d 520
    , 523 (1st Cir. 1988) (using a special jury
    form to determine which predicate acts the jury found for the
    purposes of a federal racketeering conviction).
    Thus, we do not see how the mere fact that predicate
    acts of racketeering involving second-degree murder were alleged
    bears on whether the evidence sufficed to satisfy the relatedness
    test based on the predicate acts of racketeering involving mail
    fraud that the jury actually found.         Nor does Cadden develop any
    argument as to how they might.      As a result, the key question for
    us concerns only whether the evidence sufficed to permit a juror
    reasonably to find that the predicate acts of mail fraud that the
    jury found were themselves related to one another.
    Cadden contends that the evidence did not so suffice
    because those predicate acts of mail fraud included both some that
    were    based   on   fraudulent   representations         about   technician
    licensure -- mirroring the mail fraud allegations set forth in the
    ten    Connolly-related,   stand-alone     mail   fraud    counts   that   we
    earlier addressed -- and some based on fraudulent representations
    that involved NECC's failure to produce these drugs in compliance
    with USP-797.    But, even if we assume that it would not be enough
    - 25 -
    for two or more of the predicate acts within one of these distinct
    sets of predicate acts of mail fraud to be related to one another,
    the argument that Cadden advances still lacks merit.
    These      predicate    acts     --   even    though     involving
    fraudulent representations concerning technician licensure and
    compliance with the USP -- all reflect the same crime (mail fraud),
    the same category of victims (medical providers), the same purpose
    (profit),     similar     fraudulent    misrepresentations          (claims   of
    compliance     with     regulatory     schemes),     similar     methods      of
    communicating those representations (NECC marketing materials),
    similar participants (employees of NECC), and the same method of
    commission (medication sales through NECC). They also all occurred
    within the same time frame.          Thus, a juror reasonably could find
    that they were related, despite their differences.             See 
    Feinstein, 942 F.2d at 44
    (recognizing that predicate acts with the "same or
    similar purposes, results, participants, victims, or methods of
    commission"     or    that   are    "otherwise     . . .    interrelated      by
    distinguishing characteristics and . . . not isolated events" are
    related (quoting 
    H.J., 492 U.S. at 240
    )).
    3.
    We proceed, then, to consider Cadden's contention that
    the evidence did not suffice to permit a juror reasonably to find
    the continuity requirement met.             Once again, though, we are not
    persuaded.
    - 26 -
    The government may satisfy the continuity requirement by
    demonstrating either closed-ended continuity, which refers to "a
    closed period of repeated conduct," or open-ended continuity,
    which encompasses "past conduct that by its nature projects into
    the future with a threat of repetition."            
    H.J., 492 U.S. at 241
    .
    Cadden contends that the evidence did not suffice on either score.
    But, even assuming that it did not suffice to show closed-ended
    continuity,    we   find   that   it   did    suffice   to   show   open-ended
    continuity.
    There are at least two types of racketeering enterprises
    that, by their nature, extend into the future and therefore
    demonstrate open-ended continuity:           those that "involve a distinct
    threat of long-term racketeering activity, either implicit or
    explicit" and those where "the predicate acts or offenses are part
    of an ongoing entity's regular way of doing business."
    Id. at 242.
    The latter type not only includes enterprises that are wholly
    criminal but also those in which the predicate acts of racketeering
    "are a regular way of conducting defendant's ongoing legitimate
    business."
    Id. at 243.
    The record suffices to permit a juror reasonably to find
    that, at least as of 2012, it was "business as usual" at NECC to
    distribute medications to customers by representing to them that
    the medications had been compounded in compliance with standards
    - 27 -
    that the company was not meeting.        Thus, the record suffices to
    establish open-ended continuity.
    Specifically,   the   record    shows   that   NECC   employees
    testified that the company "[r]outinely" sent out medications
    subject to USP-797 to customers prior to testing them, even though
    USP-797 forbade that practice; that the practice of "botching lots"
    to mix old, tested medications with new, untested ones and labeling
    the resulting USP-797-covered mixture with the old label was
    "prevalent" as of 2012 and occurred prior to that time, even though
    USP-797 required otherwise; and that "[i]t was kind of protocol"
    for NECC to ship even USP-797-covered medications that used expired
    ingredients, despite USP-797's contrary command.          Evidence also
    showed that NECC had sterilized its compounded medications subject
    to USP-797 for an insufficient amount of time under that standard
    since at least 2009, and that it had a practice of failing to use
    biological indicators for those compounded medications, when USP-
    797 dictated otherwise.
    Moreover, these facts and others led the government's
    expert witness to testify that he had concluded that NECC's method
    for sterilizing large lots of MPA was "completely inconsistent
    with the requirements of" USP-797.         In addition, the evidence
    sufficed to permit a reasonable juror to find, for the reasons set
    forth above, see supra at 19-21, that, despite this evidence of a
    pattern of NECC failing to adhere to USP-797, NECC routinely
    - 28 -
    advertised to customers through its sales staff and standard
    marketing materials that it was in compliance with that standard
    when it was not.
    As we also have explained, the record supportably shows
    that, during this same time period, NECC had permitted some of its
    products to be compounded by an unlicensed pharmacy technician in
    violation of state law.   Yet, the record also supportably showed,
    as we have explained, that NECC routinely represented to customers
    during this time that it was permitting only certified technicians
    to engage in such work, given the marketing materials that Boneau,
    the sales representative for NECC, had described in his testimony.
    A juror thus could reasonably find from such evidence
    that, as of 2012, the mail fraud alleged in each of the predicate
    acts of racketeering that the jury found was "part of an ongoing
    entity's regular way of doing business."   
    H.J., 492 U.S. at 242
    .
    Accordingly, a juror reasonably could find that the evidence
    demonstrated open-ended continuity.
    Cadden does stress that, at least on his account of the
    record, the company had regularly produced safe products prior to
    2012.   But, because the evidence that it was a routine business
    practice of NECC to market its medications through fraudulent
    misrepresentations about the standards that its operations met was
    strong, a juror reasonably could find that the company's pattern
    of conduct as of 2012 would continue into the future.
    - 29 -
    Cadden does also contend that his acquittal on most of
    the FDCA counts and the conspiracy to defraud the United States
    count indicates that the jury found him not guilty of participating
    in an open-ended racketeering operation.      To make that case, he
    urges us to infer from those acquittals that the jury necessarily
    found that Cadden lacked the mens rea necessary to commit fraud.
    But, the jury necessarily found that Cadden intended to defraud
    when it found that he committed the mail fraud alleged in the mail-
    fraud-based predicate acts of racketeering.    And, Cadden does not
    dispute that the evidence sufficed to permit a reasonable juror to
    so find.      Nor is there any inherent inconsistency in the jury
    having made such findings while acquitting him of the FDCA counts
    and the conspiracy to defraud the United States count, given that
    the elements of those distinct crimes differ from the elements of
    mail fraud.    See 18 U.S.C. § 371; 21 U.S.C. §§ 331(a), 333(a)(2),
    351(a)(2)(A).
    B.
    For these reasons, we reject Cadden's sufficiency-of-
    the-evidence challenges to his racketeering conviction insofar as
    he challenges the sufficiency of the evidence to support the
    "pattern of racketeering" element of that offense.     And, because
    his sufficiency-of-the-evidence challenges to his racketeering
    conspiracy conviction rely on the same unpersuasive arguments, we
    reject them, too.
    - 30 -
    IV.
    We next consider a set of challenges in which Cadden
    takes aim at each of his convictions, rather than only a subset of
    them.     Moreover, in these challenges, he seeks merely to vacate
    -- rather than to reverse -- each of these convictions, as he
    contends that each was tainted by a trial error that so prejudiced
    the jury's finding of guilt in each instance that the resulting
    conviction cannot stand.
    Cadden's focus here is on what he contends was the unduly
    prejudicial       effect   of   certain    evidence    that   the    government
    introduced at trial that related to the persons who died, or fell
    ill, from using the contaminated MPA that NECC had shipped to its
    customers.        That evidence includes photographs of patients who
    died after having been injected with the contaminated MPA, which
    the government displayed during opening and closing arguments,
    testimony given by three family members of such patients, and
    graphic testimony and photographs illustrating the harm that the
    MPA did to the patients.
    Cadden does not clearly spell out the legal authority
    that grounds these challenges in his briefing to us.                But, he does
    appear to be challenging the admission of this evidence under
    Federal Rule of Evidence 403.         See Fed. R. Evid. 403 ("The court
    may     exclude    relevant     evidence    if   its   probative      value   is
    substantially outweighed by a danger of . . . unfair prejudice
    - 31 -
    . . . .").     Insofar as the government disputes whether Cadden has
    in fact advanced this argument on appeal, we may proceed on the
    assumption that he did.          For, even if this Rule 403 challenge is
    properly before us and was preserved below, such that our review
    is for abuse of discretion, see United States v. Merritt, 
    945 F.3d 578
    , 586 (1st Cir. 2019), we find no merit to it.
    A.
    Cadden argues that the patient-related evidence, which
    he contends bore at most on the alleged predicate racketeering
    acts involving second-degree murder, lacked enough probative value
    to outweigh its obvious prejudicial effect.                  In pressing this
    contention, Cadden at various points actually goes so far as to
    assert that there was not enough evidence of either the causation
    or mens rea elements of second-degree murder to support a finding
    of that offense at all and that the patient-related evidence could
    not   itself   make   up   for    those    fatal    evidentiary   gaps   in   the
    government's case on that score.               Notably, that contention would
    suggest that there was no probative value to the patient-related
    evidence, such that there would be no need to engage in the
    traditional weighing of the probative value of evidence against
    its prejudicial impact.           See Fed. R. Evid. 104(b) ("When the
    relevance of evidence depends on whether a fact exists, proof must
    be introduced sufficient to support a finding that the fact does
    exist.").      But,   as   we    will    explain,    that   contention   is   not
    - 32 -
    supported by the record.   In fact, it is evident that the patient-
    related evidence was quite probative of at least the mens rea
    element of second-degree murder.      We then go on to explain why, in
    light of the probative value of this evidence, the District Court
    did not err under Rule 403 in permitting the jury to hear it,
    notwithstanding the danger of unfair prejudice.
    1.
    Although Cadden asserts that sufficient evidence to
    permit a finding as to the causation element of second-degree
    murder was lacking, we fail to see why.      He concedes that the MPA
    that NECC compounded caused the deaths associated with the alleged
    predicate acts of racketeering involving second-degree murder.     In
    fact, he offered to stipulate as much and then conceded that aspect
    of causation at trial.     Cadden also does not dispute that the
    record shows that deficient means were used by NECC in compounding
    the contaminated MPA that led to the deaths at issue in those
    alleged predicate acts.    Nor does he dispute that the evidence
    presented at trial sufficed to permit a reasonable juror to find
    that the risks of contamination associated with the poor practices
    that NECC engaged in were high even compared to other non-USP-797-
    compliant compounding pharmacies.6
    6 Consider in this regard that there was substantial expert
    witness testimony that NECC's operations were "completely
    inconsistent with the requirements" imposed by USP-797, the
    - 33 -
    Against   that    evidentiary        backdrop,   a   juror   could
    reasonably infer that the deficient compounding practices by NECC
    must have been the cause of such a singular mass casualty outbreak
    as the one that occurred here.         After all, an official with the
    United States Centers for Disease Control testified at trial that
    the outbreak caused by the contaminated MPA compounded by NECC was
    a "public health tragedy" that in his fifteen years of work
    investigating outbreaks had only been matched by the Ebola epidemic
    --   and   was   unmatched   (at   least    at    that   time)   in   terms   of
    consequences within the United States.               See United States v.
    O'Brien, 
    14 F.3d 703
    , 708 (1st Cir. 1994) ("[I]n . . . choosing
    from among competing inferences, jurors are entitled to take full
    advantage of their collective experience and common sense.               There
    are limits to coincidence." (internal citations omitted)).
    Cadden does contend that the evidence still failed to
    suffice to show that he personally took any action that resulted
    governing rules for sterile compounding facilities, and that the
    company "repeatedly, week after week after week . . . had
    excursions and data that told them that their facility was out of
    a state of control" but nevertheless "ignored that for weeks and
    weeks and weeks on end." Consider, too, that there was also expert
    testimony that asserted that the USP standards that the evidence
    supportably showed that Cadden was consciously flouting were of
    the utmost importance because "in the event there is a nonsterile
    event . . . it can harm a lot of patients," possibly leading to
    "[m]ass casualty." In fact, still other expert testimony stated
    that the USP-797 cleaning requirements that NECC was not adhering
    to were necessary because "contamination" of the clean room
    environment "can make its way into the final preparation and harm
    or kill patients."
    - 34 -
    in the contamination of the MPA with which those patients were
    injected.    But, he does not dispute that he knew of the alleged
    deficiencies with NECC's compounding practices.            In addition, the
    record supportably shows that Cadden claimed to have "direct[ed]
    sales" for NECC and to have made "every important decision [for
    the company] on a daily basis."           The record further suffices to
    illustrate specific instances of his directing the shipment of
    orders. Thus, a reasonable juror could conclude that Cadden caused
    the deaths of patients by directing the shipment of the deficiently
    prepared medications that caused the deaths, even though a juror
    reasonably could also find otherwise.
    2.
    The evidence as to the mens rea element also sufficed,
    contrary to Cadden's contention.            Regarding this element, the
    District Court provided the jury with seven different sets of
    instructions on the state of mind necessary for second-degree
    murder -- one for every state where a patient identified in a
    murder allegation was located -- and asked the jury to apply to
    each murder allegation the mens rea standard of the state in which
    the patient had resided.           Nevertheless, despite the distinct
    language used in the seven separate instructions, the District
    Court   concluded   that    the   mens    rea   standard   was   functionally
    identical   between   the    states,      and   neither    party   on   appeal
    identifies any material differences between the standards.
    - 35 -
    In fact, in its briefing to us, the government presents
    the Michigan second-degree murder standard, applicable to eight of
    the murder charges, as representative of the appropriate mens rea
    standard for all twenty-five instances of second-degree murder,
    and Cadden does not contend otherwise.      Under Michigan law, a
    defendant must act with "malice" to be guilty of second-degree
    murder, which requires, for our purposes, a showing that the
    defendant "inten[ded] to do an act in wanton and wilful disregard
    of the likelihood that the natural tendency of such behavior is to
    cause death or great bodily harm."    People v. Goecke, 
    579 N.W.2d 868
    , 878 (Mich. 1998).   We thus apply the Michigan standard in
    reviewing Cadden's challenge to the sufficiency of the evidence of
    mens rea, and we find that the evidence sufficed to meet it.
    In addition to the expert testimony described above
    concerning the risks associated with not complying with USP-797,
    other testimony indicated that in 2002, Cadden was informed by an
    investigator for the United States Food and Drug Administration of
    the risk that, if NECC's compounded medications were contaminated,
    "people can get really sick or die."      This testimony provided
    support for a finding that Cadden was well aware of the type of
    risk that he was running by operating NECC in an unsafe manner and
    then permitting a high-risk sterile compounded medication like MPA
    to be distributed under the false representation that it had been
    compounded in accord with USP-797.     So, too, did the extensive
    - 36 -
    number of people potentially endangered by Cadden's conduct over
    a lengthy period of time, cf. 2 Wayne R. LaFave et al., Substantive
    Criminal Law § 14.4(a) (3d ed. 2019) ("[T]he situation may be such
    that the risk of death is too slight for murder where only one
    person is endangered by defendant's conduct, whereas the risk is
    sufficient where several are thus hazarded . . . ."), and the vivid
    accounts of the suffering endured by those who received injections
    of the contaminated MPA, as those accounts permitted a juror to
    assess Cadden to have been indifferent to the harm that such
    fraudulent shipping of such a deficiently compounded, high-risk
    sterile compounded medication could have caused.
    Cadden does point to evidence that showed that NECC had
    produced MPA and other similar steroids in large quantities since
    2006 without problems.    But, as Cadden concedes, the evidence
    supportably showed that problems at NECC had gotten significantly
    worse by 2012, as NECC increased its production.   For instance, an
    NECC employee testified that the practice of mislabeling lots to
    cover up the use of untested medications became much more prevalent
    in 2012, and cleaning became much less frequent.      The evidence
    also showed that, in 2012, NECC sent eye-block to a hospital that
    contained insufficient anesthetic, leading to pain and headaches.
    A juror thus would have been justified in concluding from this
    evidence that NECC's record prior to 2012 was of limited relevance
    to Cadden's mens rea during that year.
    - 37 -
    3.
    In   finding    that    the    evidence       sufficed     to    permit    a
    reasonable    juror     to   find    the    predicate       acts   of   racketeering
    involving second-degree murder, we in no way mean to second-guess
    the jury's determination, made apparent on the special verdict
    form, that the government did not prove them. Such a determination
    by the jury was based on a consideration of a wealth of evidence
    during an extensive trial that lasted more than two months.                       It is
    also the final word as to whether the government proved the serious
    allegations contained in the racketeering count that sets forth
    the alleged predicate acts involving second-degree murder.                         But,
    while there is no question the jury's actual finding on that score
    was that the government had not proved its case against Cadden,
    that finding is not determinative of whether he is right in
    pressing his Rule 403 challenge.                   For, in the aspect of that
    challenge at issue, he contends that a juror would not have had a
    sufficiently supportable evidentiary basis for finding second-
    degree   murder    on   this      record    given    the    lack   of   evidence       of
    causation and mens rea and thus that the patient-related evidence
    offered in support of it was simply not probative at all because
    it could not itself fill in those evidentiary gaps.                          The jury's
    finding does not speak to that issue.
    Similarly,      we    are     aware    that,    at    sentencing,      the
    District Court commented on the weakness of the government's case
    - 38 -
    for   finding       that    Cadden's   conduct   constituted       second-degree
    murder.      But, the District Court was not addressing whether the
    evidence     of     the    second-degree   murder   predicate      acts   was   so
    inadequate that it precluded a juror from finding them as a matter
    of law. Thus, the District Court was not addressing the contention
    that Cadden now makes in pressing his Rule 403 challenge about the
    probative value of the patient-related evidence.7
    B.
    That the murder predicates were sufficiently supported,
    and   that    the    patient-related-evidence       offered   to    prove   those
    predicates had probative value because of its capacity to show his
    mens rea, does not, of course, determine in and of itself whether
    the District Court violated Rule 403 by admitting that evidence.
    There remains the question whether the prejudicial impact of that
    evidence so outweighed its probative value that it should have
    7For these same reasons, we reject Cadden's challenge insofar
    as he means to make a claim of retroactive misjoinder -- as the
    government understands him to be making. For, even assuming there
    are no other obstacles to that argument, it is premised on the
    evidence of second-degree murder having been insufficient, which
    we conclude it was not. See United States v. Jones, 
    16 F.3d 487
    ,
    493 (2d Cir. 1994) (explaining that "'[r]etroactive misjoinder'
    arises where joinder of multiple counts was proper initially, but
    later developments -- such as a district court's dismissal of some
    counts for lack of evidence . . . -- render the initial joinder
    improper"); cf. United States v. Mubayyid, 
    658 F.3d 35
    , 72 n.39
    (1st Cir. 2011) ("Retroactive misjoinder occurs where joinder was
    proper initially because of a conspiracy allegation, but where
    later developments . . . appear to render the initial joinder
    improper." (quoting United States v. Deitz, 
    577 F.3d 672
    , 693 (6th
    Cir. 2009))).
    - 39 -
    been excluded nonetheless.          But, we conclude that the District
    Court did not abuse its discretion in answering that question as
    it did.
    Cadden is right that he conceded at trial -- after
    offering to make a stipulation -- that each of the twenty-five
    patients tied to each of the alleged second-degree murder predicate
    acts    of    racketeering   was   injected   with   MPA   from   one   of   the
    contaminated lots compounded by NECC, that each of those patients
    received at least one contaminated injection, and that each of
    those patients died from receiving a contaminated injection of
    MPA.    We thus agree with Cadden that, in consequence, the patient-
    related evidence could have at the most only marginal probative
    value to the causation showing that the government had to make to
    prove        the   second-degree-murder-based        predicate      acts      of
    racketeering.       Moreover, while the government is right that the
    United States Supreme Court has recognized that "the availability
    of alternative proofs of [an] element . . . , such as an admission"
    by the defendant that the element exists, does not make direct
    evidence of that element wholly irrelevant, Old 
    Chief, 519 U.S. at 179
    , Cadden is also right to point out that "a lack of dispute or
    concession of a central allegation may significantly reduce the
    probative value of particular evidence," 
    Kilmartin, 944 F.3d at 335
    ; see also Old 
    Chief, 519 U.S. at 184
    (concluding that "what
    counts as the Rule 403 'probative value' of an item of evidence
    - 40 -
    . . . may be calculated by comparing evidentiary alternatives").
    Indeed, given the "delicate balance between" the "probative value"
    of evidence and "the risk that the evidence will inflame the
    jurors' passions," 
    Kilmartin, 944 F.3d at 336
    , we have recognized
    that agreement between the parties on a key fact might sometimes
    tip the balance against admissibility of evidence of that fact, at
    least where the risk of unfair prejudice is especially high, see
    United States v. Ford, 
    839 F.3d 94
    , 109-10 (1st Cir. 2016).
    Nonetheless, largely for the reasons we have already
    explained, we agree with the argument that the government made in
    its opposition to Cadden's motion in limine below, though, oddly,
    not in its brief to us on appeal:         the patient-related evidence
    was "highly probative" of Cadden's "extremely reckless behavior."
    See United States v. Brown, 
    669 F.3d 10
    , 21 (1st Cir. 2012) ("[W]e
    may affirm a district court's evidentiary ruling on any ground
    apparent in the record . . . .").         Testimony from the patients'
    family members, for example, explained why the patients were
    reliant on the drugs compounded by NECC and the pain and suffering
    caused by the contaminated drugs that were injected into their
    bodies.   In contrast, the concession mirroring the bare-bones
    stipulation   was   not   a   complete    substitute   for   one   of   the
    government's primary instruments for explaining the danger that an
    experienced pharmacist like Cadden was disregarding by operating
    his pharmacy in an unsafe manner.         See United States v. Balsam,
    - 41 -
    
    203 F.3d 72
    , 84 (1st Cir. 2000) (explaining that the government is
    usually     entitled    to    present     "evidence   creating    a   coherent
    narrative     of     [the    defendant's]       thoughts    and   actions    in
    perpetrating the offense for which he is being tried" (quoting Old
    
    Chief, 519 U.S. at 192
    )); see also United States v. Morales-
    Aldahondo, 
    524 F.3d 115
    , 120 (1st Cir. 2008) ("The court is not
    required to scrub the trial clean of all evidence that may have an
    emotional impact, where the evidence is 'part of the Government's
    narrative.'" (quoting United States v. Dean, 
    135 F. Supp. 2d 207
    ,
    209-10 (D. Me. 2001))).
    To be sure, the District Court was obliged to take
    account of the potential prejudicial impact of the patient-related
    testimony, which was sure to pack an emotional punch.                 But, the
    District Court was not insensitive to this concern.               In fact, it
    limited the government to presenting only three family members of
    patients     as    witnesses     and     precluded    the   government      from
    introducing       graphic    autopsy    photographs   of    the   patients    to
    mitigate the risk of prejudice.
    Thus, keeping in mind that "the district court must be
    ceded considerable latitude in steadying the balance which Rule
    403 demands," United States v. Rodriguez-Estrada, 
    877 F.2d 153
    ,
    156 (1st Cir. 1989), we identify no abuse of discretion in the
    District Court's balancing under Rule 403 of the probative value
    - 42 -
    of the evidence against its potential for prejudice.                 We thus
    reject this ground for overturning Cadden's convictions.
    V.
    Cadden next seeks to vacate his convictions based on
    another claimed trial error -- the District Court's partial denial
    of his pre-trial motion to "preclude [the] government from relying
    on environmental monitoring requirements other than those in USP
    797."8   But, here, too, we find no error.
    A.
    The motion at issue related to environmental monitoring
    data that NECC collected from its clean rooms during the period
    that the contaminated lots of MPA were produced.              NECC gathered
    this data by measuring the level of microbial growth in different
    parts of its clean rooms.
    At trial, the government repeatedly compared the results
    of this measuring to particular "alert" and "action" levels for
    microbial    activity   laid    out       in   NECC's   Standard    Operating
    Procedures ("SOPs").     The government asserted that those levels
    signaled    the   possibility   of    a    "drift   from   normal   operating
    conditions" concerning the cleanliness of the clean rooms.
    For example, during closing argument, the government
    presented a PowerPoint slideshow that highlighted each week in
    8 The District Court granted the motion as to requirements
    predating January 2012.
    - 43 -
    2012 in which either air or surface monitoring results exceeded
    the action or alert levels in the SOPs.              The evidence supportably
    showed that NECC did not take responsive action.
    Cadden's    motion    below     asked    the     District   Court   to
    preclude the government from making arguments that relied on this
    comparison between the environmental monitoring results in one of
    NECC's clean rooms and the alert and action levels of the SOPs.
    In support of that motion, Cadden contended to the District Court
    -- as he contends to us -- that he was charged with making
    fraudulent representations related to compliance with USP-797, not
    the SOPs.   Cadden thus argued below -- as he does to us -- that he
    was not charged with falsely claiming to comply with the SOPs in
    connection with any of the mail fraud allegations underlying any
    of the counts he faced.         He also argues that, under the terms of
    the SOPs themselves, the levels set out in the SOPs were not
    operative in 2012, given that NECC had recently transferred many
    of its operations to a new clean room and that it needed time
    before   establishing     new    levels   specific      to    that   clean   room.
    Rather, he asserts that, until NECC had gathered enough data to
    establish a baseline tailored to its new facilities, the SOPs
    designated the less stringent action levels outlined in the USP-
    797 as the operative levels.
    As   a   result,    according    to     Cadden,    the   government's
    repeated references to the triggering of the SOP "alert" and
    - 44 -
    "action" levels were problematic in two respects.                  They were
    irrelevant to any material issue in the case and were unfairly
    prejudicial, and they also were likely to mislead the jury into
    thinking there was a failure to comply with the SOPs when, because
    they were not operative, there was not.
    At oral argument, Cadden's attorney characterized his
    challenge to the denial of the motion as one that concerned the
    relevance   and   unfairly    prejudicial     nature   of   certain    of   the
    evidence that had been admitted.            But, Cadden's motion to the
    District Court was styled as a motion to "preclude the government
    from relying on" certain "environmental monitoring requirements,"
    not one to exclude any evidence.          As we read Cadden's brief to us,
    moreover, he does not appear to be challenging the admission of
    evidence    regarding   the   SOPs   or    the   environmental     monitoring
    results.      Rather,   he    challenges      the   government's      repeated
    references to, and reliance on, the SOPs, particularly in opening
    and closing argument.
    We need not resolve the precise nature of the challenge,
    though.    The government does not dispute Cadden's contention that
    we should review the District Court's denial of the motion as if
    it had been properly preserved or that we should review its denial,
    as Cadden contends we must, for an abuse of discretion.               We thus
    proceed on the basis of that shared view in reviewing Cadden's
    challenge as, even if we do, it fails.           The reason is that, as we
    - 45 -
    will explain, the challenge -- however it is best characterized
    -- rests on a fatally mistaken premise about what the government
    was trying to prove by referencing the deviations from the SOPs.
    B.
    In front of the District Court, the government argued
    that   the   comparison   between   NECC's   environmental   monitoring
    results and the standards outlined in the SOPs was probative not
    just of Cadden's commission of mail fraud, but also of his "extreme
    recklessness" -- the mens rea standard it needed to show to prove
    the second-degree murder predicate acts.        And, notably, even on
    Cadden's own account, the action and alert levels set forth in the
    SOPs were the ones used in NECC's old clean room.       Thus, even if
    we accept Cadden's contention that the SOPs were not formally in
    effect in 2012, the District Court did not err in permitting the
    government to make the case to the jury that those levels set a
    reasonable benchmark by which to assess the cleanliness of a
    compounding facility, that Cadden himself was well aware of them
    at the time NECC made the fatal shipments of contaminated MPA, and
    thus that deviations from them were probative of his reckless state
    of mind.     For, even if NECC had not yet collected enough data to
    determine baseline measurements for the new facility, it was
    entirely reasonable for the government to turn to the action and
    alert levels that NECC had relied on for its old clean room to
    - 46 -
    make the case to the jury that Cadden was aware its new one was
    unsanitary.
    As the government put it to the District Court,
    Cadden's failure to properly monitor his clean
    room or come up with a plan for doing so
    effectively, as he was required to do by the
    USP, should hardly be the basis for an order
    excluding   the   [environmental   monitoring]
    results showing contamination in his clean
    rooms from evidence; he simply should not be
    allowed to pretend that his consistent
    violations of his own policies, especially
    beginning in early 2012, did not happen.
    Nor does Cadden develop any argument to the contrary, as he makes
    no contention that the content of the SOP-standards reference was
    so obviously misleading as a measure of the state of NECC's new
    clean room as to require the District Court to exclude all mention
    of those standards even if they could have been probative of the
    second-degree   murder      predicate      acts.    Thus,   his   challenge
    necessarily fails.    See United States v. Zannino, 
    895 F.2d 1
    , 17
    (1st Cir. 1990) ("[I]ssues adverted to in a perfunctory manner,
    unaccompanied   by   some   effort   at     developed   argumentation,   are
    deemed waived.").
    VI.
    Cadden's final set of challenges to his convictions
    targets the District Court's denial of his motion for a new trial
    based on allegations of prosecutorial misconduct at trial.                In
    seeking to vacate his convictions on this basis, Cadden first
    - 47 -
    argues that, in several instances, the government presented false
    evidence to the jury that suggested that he had failed to take
    adequate action even after he learned about the existence of the
    contaminated MPA that caused the 2012 outbreak.       He next takes
    issue with a binder of evidence that the government gave to the
    jury without either his or the District Court's knowledge.      Our
    review of the District Court's denial of his motion for a new trial
    on these grounds is for abuse of discretion, see United States v.
    Casas, 
    425 F.3d 23
    , 39 (1st Cir. 2005), and we see none.
    A.
    We have held that "a prosecutor 'may not knowingly use
    false evidence, including false testimony, to obtain a tainted
    conviction regardless of whether the prosecutor solicits false
    evidence or . . . allows false evidence to go uncorrected when it
    appears.'"     United States v. Flores-Rivera, 
    787 F.3d 1
    , 31 (1st
    Cir. 2015) (alteration in original) (quoting United States v.
    Mangual–Garcia, 
    505 F.3d 1
    , 10 (1st Cir. 2007)). Such a conviction
    "must be set aside if there is any reasonable likelihood that the
    false testimony could have affected the judgment of the jury."
    United States v. Bulger, 
    816 F.3d 137
    , 158 (1st Cir. 2016) (quoting
    United States v. Agurs, 
    427 U.S. 97
    , 103 (1976)).
    The most troubling allegations concern the testimony of
    Wendy Huffman, the director of an entity -- the South Bend Clinic
    -- that purchased medications from NECC.    We thus begin with those
    - 48 -
    allegations.      We then consider two other alleged uses of false
    evidence by the government that Cadden identifies.
    1.
    Huffman testified at trial that, on September 21, 2012,
    she received a call from Cadden, in which he allegedly told her
    that she should pull the MPA that NECC had sold to the South Bend
    Clinic from its shelves.          The government put forth Huffman's
    testimony to show that Cadden had known about the contamination on
    September 21 and thus well before September 26, when other evidence
    showed that he notified his other customers of the problem.
    The   Huffman    testimony    was   potentially   damning.     It
    suggested   that    Cadden    attempted    to   conceal   evidence   of   the
    contamination from his other customers, which in turn supported
    the government's theory that he possessed the state of mind
    necessary for second-degree murder.
    On February 5, 2017, shortly after Huffman testified,
    Cadden moved to strike Huffman's testimony on the ground that it
    was clearly false.    Cadden based his motion, in part, on telephone
    records that indicated that Huffman had not received a call from
    Cadden on the date that she testified she had and on what he
    contended was the inconsistency between her testimony and other
    evidence about NECC's response to the outbreak.
    The District Court denied that motion on the ground
    that it was the jury's responsibility to sort through the parties'
    - 49 -
    factual dispute on the issue.           On March 3, 2017, however, near the
    close    of    the    government's     case,    the   District   Court      held   a
    conference with counsel.           At the conference, the District Court
    asked counsel for the government whether it "shouldn't consider
    withdrawing [Huffman's] substantive testimony about a call on the
    21st of September," as "[n]one of your other evidence is consistent
    with" Huffman's receipt of a recall notice on that date.
    In response, on March 7, the government filed a brief
    that    opposed       Cadden's   earlier   motion     to   strike    the   Huffman
    testimony and requested that the District Court strike Cadden's
    evidence on this point.            On March 8, the District Court again
    concluded that "whatever its private opinion may be, contested
    issues of fact are for the jury" and declined to strike any of the
    contested evidence.
    At the close of the defense's case on March 13, though,
    Cadden once again moved to strike evidence relating to the Huffman
    call.     Again, the District Court denied the motion, noting to
    Cadden that "[y]ou have an awfully strong argument, I think, on
    the point to the jury," but concluding that "it's a factual issue
    that I don't think I have the power to shape at this point."
    Finally, Cadden in his post-verdict motion for judgment
    of acquittal moved for a new trial based on the government's
    putting       forth    the   Huffman    testimony      despite      the    evidence
    indicating that it was false.              This time, the District Court
    - 50 -
    rejected Cadden's argument on somewhat different grounds.                   It held
    that any misconduct that the government committed did not prejudice
    Cadden and so did not warrant a new trial.
    Before reaching that conclusion, however, the District
    Court found that it was "clear that . . . [Huffman] had confused
    a call from a patient advocate inquiring about an appointment . . .
    with the warning call she did receive from Cadden the following
    week."        And while the District Court did not make an express
    finding of misconduct by the government in relying on the evidence
    despite the indications that it was false, it stated that the
    government's "persistence in defending the Huffman testimony," in
    spite    of    Cadden's      repeated   objections     and    its    own   explicit
    suggestion          that   the    government     retract     the    evidence,   was
    "perplexing at best, and at worst, inconsistent with the obligation
    of the government to serve the higher interest of justice."
    We    share   the    District     Court's     concern    about   the
    government's conduct.            In fact, the government does not attempt on
    appeal to rebut the substance of Cadden's objections to the
    accuracy of Huffman's testimony.                 The government notes instead
    only that it "is not forbidden to call witnesses whose reliability
    in one or many particulars is imperfect or even suspect."                   United
    States v. McGovern, 
    499 F.2d 1140
    , 1143 (1st Cir. 1974).                   But, the
    leeway afforded the government to present flawed testimony does
    not sanction its "knowing reliance upon false evidence."
    Id. - 51
    -
    Nonetheless, like the District Court, we may resolve this challenge
    without deciding whether the government's conduct was proper,
    because Cadden has not shown the requisite prejudice.
    Huffman's testimony was introduced to prove Cadden's
    state of mind for the purpose of proving only the second-degree-
    murder-based predicate acts of racketeering.            The government made
    no argument that her testimony was otherwise probative.             Yet, the
    jury, after having heard all the competing evidence that Cadden
    relies on concerning Huffman's testimony, did not find those
    predicate acts of racketeering proved.
    At the very least, then, we find no indication in the
    jury   verdict   that   the   jury   disagreed   with   what   we   read   the
    overwhelming weight of the evidence to indicate about Huffman's
    testimony -- it was inaccurate.           We thus have no reason to be
    concerned that, despite having been extensively rebutted, her
    testimony influenced the jury with respect to the only issue for
    which it was put forward by the government.
    Nor is the Huffman testimony the sort of evidence that
    in its nature is likely to spill over and interfere with the jury's
    deliberations over the other counts (or predicate acts), such as
    those concerning mail fraud, that it was not put forward to prove.
    The straightforward testimony of Huffman, about a phone call that
    she allegedly received, was not likely -- at least after having
    been so thoroughly undermined -- to "'evoke an improper emotional
    - 52 -
    response'   and    distract[]   'from       careful    consideration    of   the
    relevant issues.'"      
    Kilmartin, 944 F.3d at 335
    (quoting United
    States v. Fulmer, 
    108 F.3d 1486
    , 1498 (1st Cir. 1997)). That being
    so, it would be too speculative to conclude, contrary to the
    District Court, that the Huffman testimony so tainted the trial
    that the verdicts for which the evidence was not presented must be
    overturned.
    Cadden contends that his ability to introduce evidence
    that   Huffman's    testimony    was    false    does    not   wipe   away   the
    possibility of prejudice.       He points out that much of the evidence
    supporting his rebuttal of Huffman's testimony only came out six
    weeks later during the presentation of his evidence.                    Cadden
    presents no support, however, for the notion that a delay between
    the government's case and the defense's case -- a standard feature
    of criminal trials -- prejudices defendants by making their case
    less persuasive in the eyes of the jury.              We thus decline to base
    a prejudice finding on such an assertion.
    2.
    The two other incidents in which Cadden alleges that the
    government relied on false testimony are less concerning.                     We
    consider each in turn.
    First, at trial, Annette Robinson, an NECC employee,
    testified that Cadden instructed her to do fungal testing, a
    request he had not made before, "a few weeks before the outbreak."
    - 53 -
    Cadden contends that the testing records show that testing only
    began on September 27, 2012, however, which could suggest that
    Robinson was wrong that testing had begun earlier than the date of
    the outbreak.
    But, it was not clear precisely when "the outbreak"
    occurred or how long "a few weeks" might be.                 There was also a
    lack of evidence about how long it took NECC to ship medications
    to the testing facility.       We thus cannot conclude that Robinson's
    testimony was false, let alone that the government relied on it
    while knowing that it was.
    Second,    two   witnesses     from   another    clinic   that    had
    purchased   medications      that   NECC    compounded      --   Michigan    Pain
    Specialists -- testified at trial that Cadden had failed to notify
    their clinic on September 26, when he recalled the contaminated
    MPA from NECC's other customers.             The testimony suggested that
    there was a gap between when Cadden was aware of the contamination
    -- even assuming that he first became aware of it on September 25
    -- and when he took action to notify at least one of his customers.
    Contrary    to   the    witnesses'     testimony,      however,     a
    document admitted at trial showed that NECC had faxed over a recall
    notice to Michigan Pain Specialists on September 26.                    Cadden
    contends on that basis that the testimony from the Michigan Pain
    Specialists witnesses was false and that the government committed
    misconduct by advancing it at trial.
    - 54 -
    But,   Cadden   concedes    that,   at   trial,   his   attorney
    succeeded in "surpris[ing]" one of the clinic's witnesses with a
    copy of the fax.    There is no indication that the government knew
    of this document when it presented the witness, thus making it
    hard to see how there is a basis for finding that the government
    engaged in misconduct.
    In any event, the jury heard the same evidence that
    would allow us to conclude that the government's evidence was
    false.   The special verdict form also shows that the jury did not
    accept the government's theory of second-degree murder.            Yet the
    contested testimony was admissible to prove the alleged predicate
    acts of racketeering based on that racketeering activity.            Thus,
    for substantially the same reasons that lead us to find that the
    admission of Huffman's testimony does not provide grounds for a
    new trial, we reject Cadden's challenge regarding the Michigan
    Pain Specialists testimony as well, given the minimal inherent
    risk of prejudice that it posed once undermined.
    B.
    Cadden also brings a misconduct-based challenge to his
    convictions because the prosecution gave the jury, without his
    knowledge or the knowledge of the District Court, a binder of
    admitted evidence that the government assembled.         It is troubling
    that this binder, which was not itself admitted into evidence
    though the exhibits within it were, made its way to the jury for
    - 55 -
    deliberations unbeknownst to Cadden or the District Court until
    after the jury had rendered its verdict.                 The District Court
    acknowledged as much.        But, we conclude that the District Court
    did not err in determining that, due to a lack of prejudice, there
    was no ground for a new trial.
    1.
    The   binder   compiled   evidence   that    had    already    been
    introduced    throughout     the   trial,   and   it   purported     to    prove
    deficiencies in the medications that corresponded to many of the
    stand-alone mail fraud counts and predicate acts of racketeering
    involving mail fraud.        The binder was divided into three parts.
    Each part related to a different set of the stand-alone mail fraud
    counts that Cadden was charged with committing.                 Each part also
    contained admitted exhibits that related to test results that
    indicated that shipments that were at issue in each of those mail
    fraud counts were nonsterile or subpotent.               The binder did not
    include evidence that Cadden had introduced at trial to prove that,
    contrary to the government's allegations, some of the shipments at
    issue contained medications that were in fact sterile.
    The first mention of this binder at trial occurred during
    closing argument.       That is when the government highlighted the
    existence of a government-created binder to the jury by describing
    it as "a binder that we put together for you where we've collected
    - 56 -
    the test results that are in evidence for these [fraudulent]
    shipments."
    Cadden apparently did not notice or object to the binder
    when the government referred to it, even though no such binder had
    been admitted into evidence or had otherwise been approved to go
    the jury.     The government then provided the binder to the court
    clerk, who transmitted it to the jury room without giving any
    additional notice to Cadden or the District Court.
    On   the   third    day   of   jury    deliberations,      the   jury
    requested exhibits that related to ten of the predicate acts of
    racketeering      involving     mail   fraud,   some    of   which    the   binder
    contained.    At the District Court's request, the parties assembled
    responsive exhibits.       The District Court organized these exhibits
    and submitted them to the jury.
    On the same day, during a conversation between counsel
    and the District Court about a response to a different jury
    question,     Cadden's     counsel       objected      to    the     government's
    transmission of the binder and the jury's reliance on it. By then,
    he apparently had learned that the jury had obtained a binder
    filled with exhibits of government-friendly test results.
    In response, counsel for the government claimed not to
    be aware of the location of the binder.             The District Court relied
    on that representation in mistakenly concluding that the binder
    - 57 -
    had not been sent to the jury and declining to take additional
    action at the time.
    After the jury returned its verdict, however, it became
    clear that government attorneys had, in fact, provided the binder
    to the jury.   The government later conceded the same.
    Cadden now argues, as he did to the District Court in a
    motion for a new trial, that the government's provision of the
    binder to the jury and denial that it had done so constitutes
    misconduct that warrants a new trial.   The District Court denied
    Cadden's motion.
    The District Court conceded that the binder's presence
    in the jury room without court approval was a "mistake."   However,
    the District Court did not find that it was the product of
    intentional misconduct by the government.    Rather, the District
    Court bypassed a definitive ruling on that issue and found that
    the binder, even though received by the jury without the knowledge
    of Cadden or the District Court, was not so prejudicial as to
    require a new trial.   Among the District Court's reasons for so
    finding were that all of the documents contained in the binder had
    been admitted into evidence and that the District Court would have
    admitted the completed binder into evidence if the government had
    requested that it do so.
    - 58 -
    2.
    In general, government "misconduct alone is insufficient
    to reverse a conviction absent a showing of prejudice."     United
    States v. Gentles, 
    619 F.3d 75
    , 81 (1st Cir. 2010); see also United
    States v. Best, 
    939 F.2d 425
    , 429 (7th Cir. 1991) (en banc)
    (asking, in a similar situation, whether "there was some prejudice
    or substantial right affected by the presence of the binders in
    the jury room during deliberations").   Nor does Cadden argue that
    the provision to the jury of a government binder that had not
    itself been admitted into evidence is presumptively prejudial to
    the defendant, let alone that one that contains only documents
    that themselves have been admitted into evidence is.9    See 
    Best, 939 F.2d at 430
    .   Instead, he contends that the binder presented
    the evidence that it contained in a manner favorable to the
    government's position and, for that reason, caused prejudice that
    necessitates a new trial.
    To support this challenge, Cadden highlights the title
    of the binder, "Nonsterile and Sub/Super-Potent Results."       He
    contends that title could be read to suggest that the binder
    9 Cadden also does not frame his claim as one rooted in the
    jury's "improper exposure to extrinsic material," United States v.
    Pagán-Romero, 
    894 F.3d 441
    , 446 (1st Cir. 2018), and the District
    Court did not treat it as one. We thus apply the standards that
    have been developed for reviewing claims of prosecutorial
    misconduct rather than the somewhat distinct standards for
    reviewing claims of exposure to extrinsic evidence. See
    id. at 446-47.
    - 59 -
    included all the relevant test results, rather than only the
    government's preferred evidence concerning testing.
    As the District Court itself noted, however, the jury
    specifically requested "exhibits already allegedly included in the
    binder."     The jury's request strongly suggests that it did not
    rely on the binder to the exclusion of other evidence, or assume,
    as     Cadden's    argument     for   prejudice       would    imply,     that   the
    government's binder contained the only exhibits about testing
    relevant to the mail fraud counts in question.
    Moreover, the very title of the binder that Cadden
    complains of implies, not, as he suggests, that the binder includes
    all test results that relate to the shipments at issue in the mail-
    fraud-based       counts,    but    rather,    that    it     includes    only   all
    "Nonsterile and Sub/Super-Potent Results" that relate to those
    counts.    Cadden's evidence of competing test results, however, was
    also    introduced.         Those   results    purported      to   show   that   the
    shipments contained medications that were sterile.                    It would be
    too speculative to conclude that the jury would have assumed a
    binder explicitly labeled as including "Nonsterile . . . Results"
    would have been the sole place to look to find the non-trivial
    number of exhibits that showed that the medications were sterile,
    especially when Cadden repeatedly had highlighted those exhibits
    at trial and when the jury requested exhibits concerning test
    results that were in the binder.
    - 60 -
    We note, too, that the government flagged the existence
    of the government-produced binder for the jury during closing
    argument and described it as presenting its evidence.                  Thus, the
    jury was on notice that it would have access to a binder produced
    by   the   government      that   contained    evidence      of    test   results
    introduced to prove the instances of mail fraud alleged in the
    indictment.    In fact, the binder had the United States Department
    of   Justice   seal   on   the    front   cover,    and    the    District     Court
    reasonably found the presence of the seal "would have made it clear
    to   the   jury   that     the    exhibits    had   been    assembled     by    the
    government."
    Further supporting the District Court's no-prejudice
    finding is the fact that Cadden, when faced at closing argument
    with the government's assertion that it intended to present the
    jury with a binder full of government evidence regarding the
    fraudulent shipments of medications, neither objected nor took the
    opportunity to assemble a comparable binder of defense evidence.
    Cadden asserts that his counsel believed that the government was
    alluding to other binders that had been admitted into evidence
    during trial.     But, he identifies no other binders that match the
    description offered by the government.              The silence by Cadden's
    counsel at that moment thus accords with the District Court's
    assessment that the binder was not of a sort that would cause
    - 61 -
    prejudice    merely    by   having   been     given   to   the   jury   for   its
    deliberations.
    The District Court's determination as to prejudice also
    accords, as the government contends, with the most analogous
    precedent:     Best.   There, a sharply divided Seventh Circuit held
    en banc that, under somewhat similar circumstances, improper entry
    of a binder of admitted evidence into the jury room was not
    prejudicial.     
    See 939 F.2d at 430-31
    .          In fact, the record here
    reveals, if anything, less prejudice than was present there.
    The dissenters in Best were understandably concerned
    that the binder at issue there was "a roadmap to a guilty verdict,"
    id. at 433
    (Posner, J., dissenting), and we see much force in their
    views.    But, this binder was different.             It merely grouped the
    admissible evidence that it contained by shipment and thus deployed
    a commonsense -- rather than a tendentious -- organizational
    scheme. In fact, the District Court itself expressed concern about
    "the confusion that the erratic numbering of government and defense
    exhibits caused during the trial," urged the parties to organize
    the evidence into binders, and indicated that, notwithstanding the
    structure of the binder, it would have allowed it into evidence
    anyway.
    The dissenters in Best also emphasized that the record
    there strongly suggested that the jury relied heavily, although
    perhaps not exclusively, on the government's binder of evidence.
    - 62 -
    Id. at 432-35.
         But, nothing in the record suggests comparable
    reliance on the binder by the jury in this case.       In fact, the
    jury's request for exhibits that related to each of several counts
    addressed by the binder suggests the exact opposite.
    To be sure, Cadden was deprived of knowing that the
    binder went to the jury and thus of choosing how to respond to
    that fact.   But, he has not explained, and we do not see, what
    responsive action he could have taken that would show that he was
    so prejudiced by being denied the chance to take it that the
    District Court acted beyond its discretion in denying the motion
    for new trial.     In fact, the record shows that the jury was aware
    that the binder was produced by the government and contained its
    evidence and that his counsel made no objection to the jury being
    provided the binder when the government first stated its intention
    to provide it.10
    10 Aside from the false testimony and the binder incident,
    Cadden identifies a slew of other examples of what he deems to be
    government misconduct.   However, as stated in Cadden's opening
    brief, he only "summarized" these events "briefly" in order to
    show that "the government's behavior" regarding the primary
    incidents "was not an aberration."       In his reply brief, he
    reiterated that he "points to this litany [of alleged instances of
    misconduct] to demonstrate the pattern [of misconduct] and that
    the pattern was deliberate."      Because we do not resolve the
    question of what state of mind the government attorneys possessed
    in taking the primary actions Cadden complains of, as Cadden has
    not demonstrated that any instances of potential misconduct
    resulted in prejudice, we do not need to address the other
    incidents that Cadden highlights that allegedly show their
    behavior was deliberate. Even to the extent that Cadden does mean
    - 63 -
    VII.
    We have, to this point, addressed and rejected all the
    challenges that Cadden brings to his convictions.          We thus now
    turn to the challenges that concern his punishment.       We begin with
    the challenges to his prison sentence, which are brought solely by
    the government in its appeal.      We then turn to the challenges that
    Cadden, in his appeal, and the government, in its, bring to the
    order of forfeiture.
    A.
    The   District   Court    determined   that   Cadden's   total
    offense level under the Guidelines was twenty-nine.       Based on that
    determination and Cadden's lack of any prior criminal history, the
    District Court calculated a sentencing range under the Guidelines
    of 87-to-108 months' imprisonment and handed down a sentence at
    the top end of that range.
    for these other incidents to serve as distinct grounds for a new
    trial, he has not developed any of the arguments or their
    prejudicial effects in sufficient detail, either in front of the
    District Court or in front of us, and has thus waived them. See
    
    Zannino, 895 F.2d at 17
    ("[I]ssues adverted to in a perfunctory
    manner, unaccompanied by some effort at developed argumentation,
    are deemed waived.").
    We also reject Cadden's suggestion that, even if none of the
    alleged instances of misconduct prejudiced him in isolation, the
    sum total of the alleged misconduct amounts to cumulative prejudice
    warranting a new trial. For the reasons already discussed, none
    of the instances of possible misconduct Cadden identifies resulted
    in prejudice. Thus, even when combined with one another, they do
    not require vacatur of any of Cadden's convictions.
    - 64 -
    The government contends that the District Court erred by
    understating     the   loss   attributable   to    Cadden's   offenses,   see
    U.S.S.G. § 2B1.1(b)(1), and by failing to apply two enhancements
    that would have increased Cadden's total offense level, see
    id. §§ 2B1.1(b)(16),
    3A1.1(b).           We    review     the     District   Court's
    "interpretation and application of the sentencing guidelines" de
    novo, United States v. Flores-Machicote, 
    706 F.3d 16
    , 20 (1st Cir.
    2013),   and     factual   findings,   including    the    District    Court's
    "calculation of the amount of loss, for clear error," United States
    v. Ihenacho, 
    716 F.3d 266
    , 276 (1st Cir. 2013).
    1.
    The District Court calculated the loss attributable to
    Cadden's offenses as $1,427,000, which led to a fourteen-level
    increase    in    Cadden's    total    offense    level.       See    U.S.S.G.
    § 2B1.1(b)(1)(H). The calculation was based on the "[a]ctual loss"
    suffered by victims, which refers to "the reasonably foreseeable
    pecuniary harm that resulted from the offense."                 See U.S.S.G.
    § 2B1.1 cmt. n.3(A)(i).
    The District Court limited the loss calculation to the
    total value of shipments of medications that had been identified
    as deficient in some manner and that were listed in five trial
    exhibits.      These shipments were deficient either because the
    medications were expired, contaminated, nonsterile, sub-potent,
    super-potent, or compounded by an unlicensed technician.
    - 65 -
    The government contends, however, that all NECC sales of
    medications during the period in question constituted pecuniary
    harm suffered by NECC's customers. For that reason, the government
    contends that the loss amount should have been at least $75.6
    million.    If the loss amount were that high, then the loss
    enhancement would have increased Cadden's total offense level an
    additional ten levels from twenty-nine to thirty-nine.              See
    id. § 2B1.1(b)(1)(M).
       That increase would have shifted his Guidelines
    sentencing range upward dramatically.         See
    id. ch. 5,
    pt. A.11
    Insofar   as   NECC   sold   a   product   using   a   fraudulent
    representation, there is a strong argument that the entire value
    of the product constituted a "loss" for Guidelines purposes.            See
    U.S.S.G. § 2B1.1 cmt. n.3(F)(v) ("In a case involving a scheme in
    which . . . goods for which regulatory approval by a government
    agency was required but not obtained . . . loss shall include the
    amount paid for the property . . . with no credit provided for the
    value of those items . . . ."); United States v. Gonzalez-Alvarez,
    
    277 F.3d 73
    , 80 (1st Cir. 2002) ("[C]onsumers here who reasonably
    believed they were purchasing milk compliant with all government
    health regulations, but in fact received a different product of
    11 While the government initially took issue with the time
    period adopted by the District Court, in its reply brief, the
    government concedes that, at least for purposes of this appeal, it
    merely argues that "the racketeering period started no later than
    2010 -- as the district court's written orders contemplate." Thus,
    we do not address its arguments on this point.
    - 66 -
    unknown safety, were denied the benefit of their bargain and
    suffered an actual loss.").      But, trial evidence showed that NECC
    produced a number of products in a separate area from the area in
    which NECC's sterile compounding took place.      The government makes
    no developed attempt to explain how conditions were such in other
    areas in NECC's facilities that sales of all the products produced
    in those areas also were fraudulently sold.        Thus, we do not see
    how the District Court erred in finding that not all products sold
    by NECC were sold fraudulently.
    The government separately appears to argue that, even if
    some of NECC's sales were not made via fraudulent representations,
    those sales would still constitute a "loss."            The government's
    theory is that if these customers had "known that NECC's production
    methods violated the USP and NECC's safety assurances, they would
    have   never   purchased   the   drugs."   But,   the   cases   that   the
    government relies are ones in which the buyer did not receive the
    benefit of the anticipated bargain.        See 
    Gonzalez-Alvarez, 277 F.3d at 80
    ("Where a product has a value of zero as a matter of
    law, but consumers pay for the product as if it had value, the
    buyers have been robbed of the benefit of their bargain."); United
    States v. Bhutani, 
    266 F.3d 661
    , 670 (7th Cir. 2001) ("[T]here was
    indeed loss to consumers because consumers bought drugs under the
    false belief that they were in full compliance with the law.");
    United States v. Marcus, 
    82 F.3d 606
    , 610 (4th Cir. 1996) ("Given
    - 67 -
    the unchallenged finding that consumers would not purchase a drug
    of unknown safety and efficacy at any price, the district court
    correctly concluded that [the company's] gross sales were the
    appropriate measure of the actual loss suffered by consumers
    . . . .").    Those precedents provide no support for finding that
    a customer has experienced a pecuniary loss when, as here, he gets
    exactly what he was told he was paying for from the seller but he
    might have reconsidered the choice to become a customer at all if
    he had been aware of the seller's other fraudulent sales.                    See
    U.S.S.G. § 2B1.1 cmt. n.3(A)(iii) ("'Pecuniary harm' means harm
    that is monetary or that otherwise is readily measurable in
    money.").
    The government also contends that the District Court's
    loss amount fails to account for even all of the medications that
    NECC    shipped   that,   at     a     minimum,    were   made   with    false
    representations concerning compliance with USP-797.              The District
    Court   perhaps   could   have       swept   up   additional   sales    in   its
    calculation of loss for this reason, just as the government
    contends.    But, the record shows that the government only advanced
    at sentencing its flawed theory that all NECC sales in the relevant
    period should be included in the loss calculation, even including
    those that were not sold fraudulently.              The government did not
    identify or attempt to document a narrower loss figure that would
    reflect the actual losses suffered by fraud victims but that would
    - 68 -
    have been greater than the loss amount that the District Court
    calculated.
    Thus, given the information presented to the District
    Court, it did not commit clear error in relying on the value of
    the shipments that it could pin down with reasonable certainty as
    fraudulent to determine the "loss" amount.12   See U.S.S.G. § 2B1.1
    cmt. n.3(C) ("The court need only make a reasonable estimate of
    the loss . . . . [T]he court's loss determination is entitled to
    appropriate deference."); United States v. Flete-Garcia, 
    925 F.3d 17
    , 28 (1st Cir. 2019) ("[A] loss calculation need not be precise:
    the sentencing court need only make a reasonable estimate of the
    range of loss.").   We note in this regard that, even on appeal,
    the government still has not identified that amount.    Nor has it
    explained how it was denied a fair opportunity to provide that
    amount below.   We thus reject the suggestion that the government
    made in its briefing to remand Cadden's sentence for the District
    Court to redo the loss calculation to account for potential
    12Contrary to the government's suggestion that the District
    Court demanded proof that medications contained in the shipments
    were "defective or dangerous" before it included them in the loss
    calculation, the District Court included in the loss amount the
    value of shipments of medications that were compounded by an
    unlicensed technician, even though there was no evidence that all
    of the medications he compounded were in some way defective or
    dangerous.   This conclusion aligns with the District Court's
    statement that it included all shipments that were "potentially
    contaminated or degraded," not merely those that were shown to be.
    (emphasis added).
    - 69 -
    additional fraudulent sales.                  See United States v. Mayendía-
    Blanco, 
    905 F.3d 26
    , 34 (1st Cir. 2018) (applying plain error
    review to a challenge to a loss calculation not made below);
    
    Zannino, 895 F.2d at 17
    ("It is not enough merely to mention a
    possible argument in the most skeletal way, leaving the court to
    do counsel's work, create the ossature for the argument, and put
    flesh on its bones.").
    2.
    We   next    take    up    the    government's     challenge    to   the
    District Court's refusal, at sentencing, to apply a two-level
    enhancement because Cadden's "offense involved . . . the conscious
    or reckless risk of death or serious bodily injury."                        U.S.S.G.
    § 2B1.1(b)(16).13          The     District       Court   reasoned      that      this
    enhancement was only based on "the offense of conviction" and not
    "on acquitted or even relevant conduct."                       Thus, to find the
    enhancement applicable, the District Court concluded that, given
    the nature of the offense of mail fraud, it would have to find
    that    Cadden    had    committed      second-degree     murder,    and    although
    Cadden      may   have     been        "negligen[t]"      or    "even      gross[ly]
    negligen[t]," the evidence did not "c[o]me close to establishing
    . . . that he acted with [the] state of knowledge that a conviction
    for second-degree murder under relevant state law requires."
    13
    At the time of sentencing, the enhancement was codified at
    U.S.S.G. § 2B1.1(b)(15).
    - 70 -
    The government now challenges that determination on the
    ground that the District Court incorrectly focused on whether
    Cadden had committed second-degree murder, instead of whether his
    "relevant conduct" in the commission of his mail fraud offense
    carried with it the requisite risk of death under the Guidelines.
    See U.S.S.G. § 2B1.1(b)(16).          We agree.
    For   the    purpose    of     determining        whether     Cadden's
    "offense" involved the requisite risk under § 2B1.1(b)(16), the
    District Court should have looked at not only Cadden's "offense[s]
    of conviction" -- which included mail fraud and racketeering
    premised on mail fraud -- but also at all of his "relevant conduct"
    as defined by the Guidelines.
    Id. § 1B1.1
    cmt. n.1(I) (defining
    "offense"). Under the Guidelines, the "relevant conduct" for which
    Cadden   is    held   accountable     includes     "all       acts   and   omissions
    committed,      aided,     abetted,        counseled,        commanded,     induced,
    procured, or willfully caused by the defendant . . . that occurred
    during   the    commission     of    the    offense     of    conviction."
    Id. § 1B1.3
    (a)(1)(A). 
            The Guidelines base a defendant's sentence on
    a range of actions that may extend beyond those the government
    must prove to secure a conviction because "[t]he focus [of the
    Sentencing Guidelines] is on the specific acts and omissions for
    which the defendant is to be held accountable . . . rather than on
    whether the defendant is criminally liable for an offense . . . ."
    Id. § 1B1.3
    cmt. n.1.
    - 71 -
    Thus, if Cadden's acts during the commission of mail
    fraud -- for instance, by directing the shipment of medications he
    knew to be substandard and highly dangerous in consequence --
    "involved . . . the conscious or reckless risk of death or serious
    bodily injury,"
    id. § 2B1.1(b)(16),
    then the District Court should
    have found that the enhancement applied.14         That is true even if,
    as the District Court apparently found, his "offense of conviction"
    did not itself inherently involve that risk.
    We also cannot accept Cadden's contention that we may
    treat the District Court as having concluded that the relevant
    conduct   associated   with   the   mail   fraud    did   not   involve   a
    "conscious" or "reckless" risk of death or serious bodily injury.
    The District Court did state that the evidence did not establish
    that Cadden had the requisite mens rea for second-degree murder.
    But, in so concluding, the District Court stated that Cadden did
    not act "with actual knowledge that his acts, or more accurately
    his failures to act, were almost certain to result in the death of
    another."    (emphases added).      As the government points out, the
    District Court in doing so at no point directly addressed in
    sentencing whether a preponderance of the evidence nonetheless
    established that Cadden's relevant conduct associated with the
    14The government has made no argument that any actions Cadden
    took in relation to his convictions for introducing misbranded
    drugs into commerce carried the requisite risk for the risk-of-
    death enhancement to apply.
    - 72 -
    mail fraud involved a "conscious or reckless risk of death or
    serious   bodily   injury."      U.S.S.G.   § 2B1.1(b)(16);    cf.   United
    States v. Lucien, 
    347 F.3d 45
    , 56-57 (2d Cir. 2003) (concluding
    that a conscious risk is one "known to the defendant" while a
    reckless risk is "the type of risk that is obvious to a reasonable
    person and for which disregard of said risk represents a gross
    deviation from what a reasonable person would do").            To be sure,
    the District Court found that the government was not "close" to
    showing the mens rea required for second-degree murder. But, here,
    too, the District Court did so without directly referencing the
    Guidelines standard in connection with Cadden's relevant conduct
    in committing the mail fraud.
    Thus, we remand for the District Court to do what it has
    not yet done:      directly address the narrow issue of whether
    Cadden's actions warranted the application of the risk-of-death
    enhancement based on the appropriate mens rea standard and scope
    of relevant conduct.    In doing so, we pass no judgment on whether
    Cadden did in fact possess the state of mind necessary for the
    enhancement   to   apply,   or   whether    any   other   barriers   to   the
    application of the enhancement might exist.15
    15The government additionally argues that the District Court
    mistakenly held that the only "victims" that could matter for the
    purpose of the risk-of-death enhancement were the direct victims
    of Cadden's mail fraud crimes, namely the hospitals who purchased
    drugs from NECC.   We are not convinced that the District Court
    - 73 -
    3.
    We come, then, to the government's last challenge to the
    sentence imposed by the District Court.              It concerns another
    enhancement    that    the   District   Court    declined    to   apply:   the
    "vulnerable victim" enhancement.            This enhancement bumps up the
    offense level by two "[i]f the defendant knew or should have known
    that a victim of the offense was a vulnerable victim," U.S.S.G.
    § 3A1.1(b)(1), and raises it by another two if "the offense
    involved   a   large   number   of    [such]    vulnerable   victims,"
    id. § 3A1.1(b)(2).
    The District Court declined to apply the enhancement.
    It ruled that, for the purposes of the Guidelines provision in
    question, "the victims at issue, given the nature of the jury's
    verdict, were the purchasers of the drugs," rather than the
    patients who received the drugs.
    The Guidelines do not define the word "victim" as it is
    used in the vulnerable victim enhancement. But, they do make clear
    that a "victim" means "a person . . . who is a victim of the
    offense of conviction and any conduct for which the defendant is
    rested its holding on this alternative ground. However, insofar
    as it matters on remand, we agree with the government that nothing
    in the Guidelines restricts the scope of the relevant "risk of
    death or serious bodily injury" analysis to those individuals who
    were directly defrauded by a defendant's illegal scheme.       See
    U.S.S.G. § 2B1.1(b)(16).
    - 74 -
    accountable under § 1B1.3 (Relevant Conduct)."                        U.S.S.G. § 3A1.1
    cmt. n.2.
    We have previously read this language to indicate that
    "[t]o come within the guidelines' definition" of "victim," "one
    need not be a victim of the charged offense so long as one is a
    victim of the defendant's other relevant conduct."                          United States
    v. Souza, 
    749 F.3d 74
    , 86 (1st Cir. 2014).                      As we have previously
    explained,        Cadden's     "relevant     conduct"        included,       among   other
    things,     any     actions    that   he    took     to     direct    the    shipment    of
    contaminated medications to hospitals during the commission of
    mail fraud.16 The "victims" of that conduct could plausibly include
    the    patients       who     foreseeably      would      use      those    contaminated
    medications.        Thus, we agree with the government that the District
    Court committed an error of law in holding that, due to the nature
    of    Cadden's      convictions,      the    reach     of    the     vulnerable      victim
    enhancement is necessarily limited to those "victims" who were
    defrauded -- namely, the customers of NECC itself.                            See United
    States      v.    Sidhu,    
    130 F.3d 644
    ,   655      (5th     Cir.    1997)    ("[A]
    physician's patients can be victimized by a fraudulent billing
    scheme directed at insurers or other health care providers.").
    16
    The government does not argue that any of Cadden's conduct
    during the commission of his FDCA offenses for introducing
    misbranded drugs into commerce harmed any vulnerable victims.
    - 75 -
    Cadden argues that, in any event, we may affirm the
    District Court's determination on the alternative ground that the
    patients, even if "victims," were not "vulnerable."                          But the
    District Court determined that the patients were necessarily not
    "victims" at all.        So, it has not yet passed on the question of
    their vulnerability.           We thus decline to do so in the first
    instance.      Instead,    we     leave     it    for   the    District     Court   to
    determine, on remand, whether, for example, Cadden is comparably
    situated to a defendant who "market[s] an ineffective cancer cure"
    and who would warrant the enhancement, U.S.S.G. § 3A1.1 cmt. n.2,
    and what effect, if any, the presence of the intermediary medical
    facilities    who     purchased      the   medications        on   behalf   of   their
    patients     should     have    on    the       assessment     of    the    patients'
    vulnerability.
    4.
    Because we find that the District Court's reasons for
    declining to apply two enhancements were legally erroneous, the
    District Court may on remand find that the enhancements should
    have been applied and that the Guidelines range it originally
    calculated requires modification.                If it updates the Guidelines
    range to account for the application of one or both of these
    enhancements, it should of course consider the parties' updated
    arguments for what Cadden's sentence should be in light of the
    modified range.       The District Court may not, however, reconsider
    - 76 -
    on remand other enhancements or aspects of its initial sentencing
    calculation       beyond    those   issues       narrowly   required    by    its
    reconsideration of the two enhancements that we have identified.
    B.
    We turn, finally, to the challenges that are before us
    that concern the forfeiture order of $7,545,501 that the District
    Court imposed pursuant to 18 U.S.C. § 1963(a)(3).              That provision
    requires defendants convicted of racketeering offenses to forfeit
    "any property constituting, or derived from, any proceeds which
    the person obtained, directly or indirectly, from racketeering
    activity."        The District Court determined the forfeiture amount
    based on "the total amount of NECC proceeds that were paid to Barry
    Cadden personally during the life of the racketeering enterprise,
    that is, from March 26, 2010 to October 31, 2012."
    We    start   with   the    government's   challenges     and   then
    consider Cadden's.         "[W]e review pure 'questions of law de novo,
    but, to the extent factual issues are intermingled, consider mixed
    questions of law and fact under the more deferential clear error
    standard.'"       United States v. Ponzo, 
    853 F.3d 558
    , 589 (1st Cir.
    2017) (quoting United States v. Ferrario-Pozzi, 
    368 F.3d 5
    , 8 (1st
    Cir. 2004)).
    1.
    Cadden contends that the District Court erred in finding
    that all NECC proceeds obtained during the relevant period were
    - 77 -
    "obtained" "from racketeering activity."        When property interests
    are "in a" racketeering enterprise, they are subject to forfeiture
    "in their entirety, regardless of whether some portion of the
    enterprise is not tainted by the racketeering activity."            United
    States v. Angiulo, 
    897 F.2d 1169
    , 1211 (1st Cir. 1990).            Property
    interests "outside the enterprise," on the other hand, are "subject
    to a rule of proportionality," and are only forfeitable "to the
    extent they are tainted by the racketeering activity."
    Id. at 1211-12.
    We have held that "proceeds or profits" of racketeering
    activity   are   "outside   interests   . . .   subject   to   a   rule   of
    proportionality."17
    Id. at 1212.
          Thus, their treatment "is in
    17 The racketeering statute has been modified from the one
    applied by the Angiulo court. At the time the forfeiture order at
    issue in Angiulo was issued, racketeering proceeds were treated as
    forfeitable because they were considered to be "interest[s]" that
    the defendant "has acquired or maintained in violation of section
    1962," which laid out the substantive racketeering offenses. 18
    U.S.C. § 1963(a)(1) (1982); see 
    Angiulo, 897 F.2d at 1211-12
    .
    Today, however, "property constituting, or derived from, any
    proceeds which the person obtained, directly or indirectly, from
    racketeering activity . . . in violation of section 1962" is
    explicitly identified as a ground for forfeiture under the statute.
    18 U.S.C. § 1963(a)(3).     Neither party argues that Congress's
    decision to explicitly identify "proceeds" as a type of forfeitable
    property has any practical effect on the analysis. But, to the
    extent it matters, the current statute presents a stronger case
    for imposing a proportionality rule on proceeds, as it limits
    forfeiture to "proceeds which the person obtained . . . from
    racketeering activity,"
    id. (emphasis added),
    not the broader
    racketeering enterprise.
    - 78 -
    contrast to the treatment of interests in an enterprise, which are
    forfeitable regardless of percentage of taint."
    Id. The government
    suggests, based on Angiulo, that Cadden's
    proceeds may constitute interests in the racketeering enterprise
    rather than interests outside of it.         But, the government offers
    no support for this broad definition of interests in an enterprise,
    particularly given that the government's authority to seek and
    obtain   "interests   in"   the   enterprise   arises   from   a   distinct
    statutory provision that the government did not rely on in seeking
    a forfeiture order against Cadden.         See 18 U.S.C. § 1963(a)(2)(A)
    (requiring the forfeiture of "any interest in . . . any enterprise
    which the person has established, operated, controlled, conducted,
    or participated in the conduct of, in violation of section 1962").
    Nor does the government explain how we may ignore the clear command
    of Angiulo that "proceeds . . . are only subject to forfeiture to
    the extent they are tainted by the racketeering 
    activity." 897 F.2d at 1212
    .
    In the alternative, the government contends as follows.
    Even if a proportionality rule should have been applied, as Cadden
    argues, it was harmless not to apply it.          The government argues
    that all the medications that NECC manufactured during the relevant
    period were subject to forfeiture, as they were all tainted by
    racketeering activity.
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    In making this argument, the government contends that
    all of NECC's medications were produced fraudulently and that,
    even if they were not, customers would not have purchased the
    legitimately produced medications had they known about NECC's
    history of fraud.        As we have already explained, however, the
    District Court supportably found at sentencing that the government
    failed to prove that all of NECC's sales over the period in
    question were generated by fraud. The government likewise presents
    no authority for the proposition that profits from non-fraudulent
    sales of NECC could be considered "proceeds which [a] person
    obtained, directly or indirectly, from racketeering activity."                     18
    U.S.C. § 1963(a)(3).          Given that these profits were not obtained
    from the racketeering activity of mail fraud that formed the basis
    of    Cadden's   convictions,         but     rather    from   legitimate,       non-
    racketeering activity, we see no reason to adopt the government's
    expansive   reading      of    the    forfeiture       statute.      Nor   did    the
    government develop an argument below for why all the proceeds of
    Cadden's from NECC were tainted by racketeering activity, and thus
    the   District   Court    made       no    findings    on   this   precise   point.
    Accordingly, while we do not make a finding about what specific
    amount of Cadden's proceeds were tainted by racketeering activity,
    we cannot agree with the government on the basis of this record
    that all of them were, and we are thus unable to affirm the District
    Court on this alternative basis.               We therefore vacate and remand
    - 80 -
    for   the   District   Court   to   assess   in   the    first   instance   the
    arguments of Cadden and the government, based on this record, about
    the portion of Cadden's earnings from NECC over the relevant time
    period that were tainted by racketeering activity and therefore
    subject to forfeiture.
    2.
    Next, we consider Cadden's contention that the District
    Court erred in calculating the forfeiture amount without deducting
    the amount in taxes that he paid on those proceeds.              We disagree.
    In   general,   the     word   "proceeds"    in   the   forfeiture
    statute refers to gross proceeds, not net profits.               United States
    v. Hurley, 
    63 F.3d 1
    , 21 (1st Cir. 1995).               In addition, per the
    statute, "property should be regarded as 'obtained' . . . when it
    has merely been held in custody" before being "passed along to its
    true owner."
    Id. Cadden clearly
    "obtained" the amount of funds
    subject to forfeiture before they were subject to taxation.                 We
    thus do not see why that gross amount is not subject to forfeiture,
    even though the amount he obtained was itself taxable.
    Cadden does argue that the ease of calculating Cadden's
    net proceeds, because of the clear evidence of his tax liability,
    renders this case one in which his forfeiture should be based on
    net proceeds instead of gross proceeds. But, Hurley did not merely
    establish a fallback procedure for estimating the value of proceeds
    in the face of a messy factual record.            It purported to interpret
    - 81 -
    the words "proceeds" and "obtain[]" in a statute, 18 U.S.C. § 1963.
    
    See 63 F.3d at 21
    .      Thus, while Hurley noted the concern that net
    proceeds would be difficult to calculate, we read it to have based
    its reading of the statute on other rationales -- including the
    legislative   history    indicating   Congress's       desire    to     give   the
    statute a broad reach, among others -- that are no less relevant
    when applied to the circumstances of Cadden's gains.                  
    See 63 F.3d at 21
    ; see also Clark v. Martinez, 
    543 U.S. 371
    , 380 (2005) ("It
    is not at all unusual to give a statute's ambiguous language a
    limiting   construction     called    for   by   one    of      the     statute's
    applications, even though other of the statute's applications,
    standing alone, would not support the same limitation.                 The lowest
    common denominator, as it were, must govern.").
    Finally, Cadden points to Seventh Circuit cases that, he
    contends, "used a net proceeds approach when the relevant figures
    were readily ascertainable."         See United States v. Genova, 
    333 F.3d 750
    , 761 (7th Cir. 2003) (defining "proceeds" as "profits net
    of the costs of the criminal business"); United States v. Masters,
    
    924 F.2d 1362
    , 1369-70 (7th Cir. 1991) ("[T]he proceeds to which
    the statute refers are net, not gross, revenues . . . .").                     We
    have previously recognized, however, that in this respect, the
    Seventh Circuit's precedent is in conflict with our own.                       See
    United States v. Iacaboni, 3
    63 F.3d 1
    , 4 (1st Cir. 2004).                Because
    - 82 -
    these     cases   reach   a   different    conclusion   than   what   our   own
    precedent requires, they are of no assistance to Cadden.18
    3.
    The government, for its part, takes issue with another
    aspect of the District Court's forfeiture calculation.                Cadden's
    wife Lisa, like Cadden, was a part-owner of NECC, and, like Cadden,
    she received proceeds in consequence of her ownership stake in the
    company.     These proceeds were deposited in a bank account that
    Lisa Cadden jointly controlled with Cadden.             The District Court
    declined to require Cadden to forfeit the amounts attributable to
    his wife's earnings, however, reasoning that the sought-after
    forfeiture order would impermissibly claw back from Cadden gains
    that were properly attributable to someone else -- his wife.
    So long as the proceeds in question were tainted by
    racketeering activity, we agree with the government that the
    forfeiture amount should not have been limited to the NECC-derived
    proceeds that were attributable to Barry rather than Lisa Cadden.
    While Barry Cadden may not have personally earned any of the
    18 Cadden does not argue that our conclusion in Hurley is
    affected by United States v. Santos, 
    553 U.S. 507
    (2008),
    superseded by statute, Fraud Enforcement and Recovery Act of 2009,
    Pub. L. No. 111-21, § 2(f)(1), 123 Stat. 1617, 1618, in which five
    justices of the Supreme Court agreed that the word "proceeds" in
    a different forfeiture statute, 18 U.S.C. § 1956, did not mean
    "gross profits." Cf. United States v. Bucci, 
    582 F.3d 108
    , 122-
    24 (1st Cir. 2009) (considering whether Santos affects the "gross
    profits" issue in another forfeiture statute).     We thus assume
    Hurley remains good law.
    - 83 -
    tainted proceeds stemming from his wife's involvement in NECC, he
    "obtained" them "from racketeering activity" within the meaning of
    18 U.S.C. § 1963(a)(3).
    The   key   preliminary     question   is     whether   Cadden
    "obtained" the NECC earnings that Lisa Cadden deposited in their
    joint account at all.     And, on this point, we see little doubt.
    The Supreme Court has noted that, during the time period in which
    § 1963(a)(3) was enacted, "the verb 'obtain' was defined as 'to
    come into possession of' or to 'get or acquire,'" and "[t]hat
    definition persists today."     Honeycutt v. United States, 137 S.
    Ct. 1626, 1632 (2017) (quoting Random House Dictionary of the
    English Language 994 (1966)).         And, we have held that a person
    obtains property even when the property is merely "held in custody"
    before being "passed along to its true owner."          
    Hurley, 63 F.3d at 21
    .   Given Barry Cadden's status as a party to the joint account
    he shared with his wife, he had "the right to withdraw all the
    funds" from the account, "or any portion of them," and therefore
    could "effectively exercise control over the entire interest, or
    any part of it, and divest totally or partially, the interest of"
    his wife.    United States v. U.S. Currency, $81,000.00, 
    189 F.3d 28
    , 34 (1st Cir. 1999) (quoting Heffernan v. Wollaston Credit
    - 84 -
    Union, 
    567 N.E.2d 933
    , 937 (Mass. App. Ct. 171)).19                     This was more
    than sufficient for acquisition purposes.
    It is true that a racketeering offender is not required
    to forfeit all of the "proceeds" he "obtained," but only those
    that    he   "obtained,        directly    or   indirectly,      from    racketeering
    activity."        18 U.S.C. § 1963(a)(3).            It is also true that the
    racketeering activity itself must have led to the acquisition of
    the    proceeds.         See    
    Angiulo, 897 F.2d at 1213
       (noting   that
    "defendants' racketeering activities must be shown to be 'a cause
    in    fact   of    the    acquisition      or     maintenance     of    [forfeitable]
    interests,'" including proceeds (quoting United States v. Horak,
    
    833 F.2d 1235
    , 1243 (7th Cir. 1987))).                        But, even accepting,
    favorably to Cadden, that the forfeiture statute imposes not merely
    a     but-for     causation      requirement       but    a    proximate   causation
    requirement as well, we do not see how this additional limitation
    would support the District Court's holding.
    The District Court has not yet determined what amount of
    the NECC proceeds Lisa Cadden obtained were tainted by racketeering
    activity -- an issue that, as noted, it will need to resolve on
    remand -- but we may assume that at least some of her earnings can
    19
    The government asserts that Massachusetts law governs, and
    Cadden does not dispute this assertion. In any case, however, we
    see no reason to think that Cadden would not have "obtained" the
    funds deposited in his jointly controlled account regardless of
    which state's law applied, given his ability to withdraw and spend
    the funds.
    - 85 -
    be traced to fraudulent NECC sales.              Insofar as that is the case,
    the record shows that Cadden would have been well aware that the
    mail fraud would generate profits that would accrue to him via his
    wife's ownership share in NECC.            Lisa Cadden had been a co-owner
    of the company since its inception in 1998, and the record shows
    that   over    that     time     period,   she    deposited    the     shareholder
    distributions that she received into bank accounts she jointly
    owned with her husband. There is little doubt that, as her husband
    and the head of NECC, Barry Cadden would have been aware of this,
    and he does not contend otherwise.                Thus, it was a direct and
    foreseeable consequence of Barry Cadden's mail fraud activity that
    some NECC earnings attributable to that fraud would pass on to
    Lisa Cadden and into the bank account she shared with him, such
    that any proximate cause limitation imposed by the forfeiture
    statute is satisfied here.          See CSX Transp., Inc. v. McBride, 
    564 U.S. 685
    ,     701     (2011)    (discussing     different        definitions    of
    proximate cause).
    Cadden's arguments to the contrary are not persuasive.
    He contends that a party to a joint account does not necessarily
    "own" the account.         But, the test is whether he "obtained" the
    funds, and, as noted, a party does not need to have owned property
    to have obtained it for the purposes of § 1963(a)(3).                  See 
    Hurley, 63 F.3d at 21
    .          He also contends that, in line with Honeycutt,
    forfeiture      under    § 1963(a)(3)      "is    limited     to    property     the
    - 86 -
    defendant himself actually acquired as the result of the 
    crime." 137 S. Ct. at 1635
    .    Because Lisa Cadden was an "innocent" party,
    he argues that it would unfair to penalize him on the basis of her
    earnings.   Even assuming that this holding of Honeycutt applies to
    § 1963(a) -- and is not limited to the statute at issue there, 21
    U.S.C. § 853 -- it provides no support for Cadden's position,
    however, because as a party to the jointly controlled account,
    Cadden himself "actually acquired" the funds at issue.    Because we
    hold that Cadden "obtained" the NECC "proceeds" that Lisa Cadden
    deposited in the couple's joint bank account, we remand for the
    District Court to consider what amount of Lisa Cadden's earnings
    should be included in Barry Cadden's forfeiture order because they
    were tainted by racketeering activity.
    VIII.
    This case was extremely complex.   The District Court was
    faced with a number of novel issues and emotionally fraught
    evidence concerning the most serious type of allegations.         We
    commend its handling of this difficult case, and, for the reasons
    stated above, affirm Cadden's convictions, though we vacate and
    remand Cadden's sentence, and vacate and remand the forfeiture
    order entered against him.
    - 87 -