United States v. Melendez ( 2024 )


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  •           United States Court of Appeals
    For the First Circuit
    No. 22-1807
    UNITED STATES OF AMERICA,
    Appellee,
    v.
    JUAN RODRIGUEZ, a/k/a Mula, a/k/a Mula Monopoly,
    Defendant, Appellant.
    Nos. 23-1255
    23-1256
    UNITED STATES OF AMERICA,
    Appellee,
    v.
    JUNITO MELENDEZ, t/n Junior Melendez,
    Defendant, Appellant.
    APPEALS FROM THE UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF MASSACHUSETTS
    [Hon. Timothy S. Hillman, U.S. District Judge]
    Before
    Barron, Chief Judge,
    Selya and Kayatta, Circuit Judges.
    Rory A. McNamara, with whom Drake Law LLC was on brief, for
    defendant Rodriguez.
    Jonathan Shapiro, with whom Mia Teitelbaum and Shapiro &
    Teitelbaum LLP were on brief, for defendant Melendez.
    Karen L. Eisenstadt, Assistant United States Attorney, with
    whom Joshua S. Levy, Acting United States Attorney, was on brief,
    for the United States.
    August 23, 2024
    SELYA, Circuit Judge.             A jury in the United States
    District     Court    for   the     District    of   Massachusetts     convicted
    defendants-appellants Juan Rodriguez and Junito Melendez of, inter
    alia,     conspiracy   to     distribute       and   possess   with   intent   to
    distribute more than 500 grams of cocaine.               The defendants claim
    that the trial was plagued by erroneous evidentiary rulings and
    defective jury instructions.            In addition, Melendez claims that
    his     sentence     rested    on     incorrect      guideline    calculations.
    Discerning no error, we affirm.
    I
    We briefly rehearse the relevant facts and travel of the
    case.     Because these appeals do not present challenges to the
    sufficiency of the evidence but, rather, deal with other claims of
    error, we rehearse "the facts in a 'balanced' manner in which we
    'objectively view the evidence of record.'"                    United States v.
    Amador-Huggins, 
    799 F.3d 124
    , 127 (1st Cir. 2015) (quoting United
    States v. Burgos-Montes, 
    786 F.3d 92
    , 99 (1st Cir. 2015)); see
    Gray v. Genlyte Group, Inc., 
    289 F.3d 128
    , 131 (1st Cir. 2002)
    (explaining that, for issues such as admissibility of evidence and
    appropriateness of jury instructions, "evidence offered by either
    side or both may be pertinent").1
    1Some of our older cases suggest that — even in the absence
    of a sufficiency challenge — we should rehearse the facts in the
    light most favorable to the verdict.       See United States v.
    Rodríguez-Soler, 
    773 F.3d 289
    , 290 (1st Cir. 2014).        Having
    - 3 -
    A
    Melendez and Rodriguez were convicted of working with
    several associates to carry out a scheme to purchase and distribute
    large quantities of cocaine in Massachusetts and New Hampshire.
    The government's case against them was as follows.               Melendez was
    the front man of the enterprise:          he interacted with customers and
    suppliers while Rodriguez managed the back-end operations from his
    residence in Worcester, Massachusetts.           The two men acquired at
    least some of the trafficked cocaine from Angel Cordova (whom the
    government believed to be their primary supplier).                   They then
    cooked portions of the acquired cocaine into crack cocaine, which
    they sold along with the rest of the powder cocaine.                     Their
    principal   customer   was   Carlos       Richards   (Lito)    who   lived   in
    Manchester, New Hampshire.       To transport the             contraband from
    Worcester    to   Manchester,   the       defendants   sometimes      employed
    couriers.
    reexamined those decisions in light of the weight of modern
    authority, we abrogate them. In doing so, we have followed the
    procedure described in cases such as Trailer Marine Transport
    Corp. v. Rivera Vazquez, 
    977 F.2d 1
    , 9 n.5 (1st Cir. 1992),
    Gallagher v. Wilton Enterprises, Inc., 
    962 F.2d 120
    , 124 n.4 (1st
    Cir. 1992), and Carpenters Local Union No. 26 v. United States
    Fidelity & Guaranty Co., 
    215 F.3d 136
    , 138 n.1 (1st Cir. 2000).
    The panel opinion in this case was circulated to all active judges
    of the court prior to publication. None interposed an objection
    to our proposed course of action. We caution, however, that the
    use of this informal procedure does not convert this opinion into
    an opinion en banc, nor does it preclude a suggestion of rehearing
    en banc on any issue in this case.
    - 4 -
    The Bureau of Alcohol, Tobacco, Firearms and Explosives
    (ATF) began focusing on the defendants in the summer of 2018 after
    local police in Worcester requested assistance with an ongoing
    probe. As relevant here, the ATF took custody of Melendez's iPhone
    in December of 2018 while he was detained on a charge unrelated to
    these appeals.       The ATF secured a search warrant for the iPhone's
    contents    and     subsequently     obtained     three    authorizations        for
    wiretaps of the iPhone.         Based on information that was recovered
    from the iPhone (such as photographs and notes) and conversations
    that were recorded by means of the wiretaps, the ATF and local
    police tracked the defendants' drug operations over the next few
    months. We briefly recount these drug transactions as they pertain
    to the issues on appeal.
    When     the   authorities      arrested      the   defendants,      the
    charges that they          lodged stemmed from a          series of      seemingly
    scattered    drug    transactions     that    occurred      over   a    period    of
    approximately three months.          Our odyssey along this trail begins
    on April 2, 2019, when a local police officer in Worcester observed
    one   of   Melendez's      associates,   Lujan    Burgos,       enter   Melendez's
    residence    and    depart    less   than    an   hour    later.        Burgos   was
    subsequently stopped and arrested for driving on a suspended
    license.    A search of his person incident to his arrest yielded
    twenty-two grams of crack cocaine, which the government suspected
    - 5 -
    Burgos had procured from Melendez            during his brief visit to
    Melendez's residence.
    The next day — April 3 — Rodriguez called Melendez for
    assistance in bailing out Burgos. Melendez responded that he would
    "make some moves" and that he should be able to help the next day
    — a response that hinted that Melendez would receive proceeds from
    a later cocaine sale.       One of the enterprise's couriers, Antoine
    Mack, was to deliver cocaine to Richards in Manchester                  that
    afternoon.    Local police observed Mack first at a dwelling in
    Worcester (later referred to as "Mula's spot") at which Melendez's
    vehicle was parked.    Mack spent only a short time in the Worcester
    residence, after which tailing ATF agents lost sight of him.                The
    government suspected that it had just witnessed Mack pick up a
    cocaine   shipment   from    Melendez   to   transport     to    Richards   in
    Manchester.
    Mack reappeared at Richards's residence, where he made
    only a quick stop and departed with a bag in hand.                  A later-
    discovered video showed Mack in his vehicle in Manchester with
    what looked like a large sum of cash in his lap. Mack then returned
    to   Massachusetts    and   made   another    pilgrimage    to    Melendez's
    residence.    After these events had transpired, Melendez told
    Rodriguez that he had secured the necessary funds to help bail out
    Burgos.   From the government's perspective, this chain of events
    - 6 -
    indicated that Mack had successfully delivered the cocaine to
    Richards and returned the proceeds to Melendez.
    We fast-forward to April 12.                 On that date, Melendez
    telephoned Cordova, who reported that he "got five" — a statement
    which the ATF case agent understood to mean 500 grams of cocaine.
    Several additional telephone calls ensued during which the men
    discussed a meeting location for the transfer of the cocaine.
    Following    these    calls,     Worcester      police    observed       a   "possible
    Hispanic male" leave the meeting location with what looked like a
    food container in a plastic bag. The government argued that police
    had just witnessed Melendez purchase cocaine from Cordova.
    This brings us to April 22.                 On that date, Melendez
    instructed    Mack    to    go   to    Mula's   spot,     which    the       government
    understood as a direction to pick up cocaine and deliver it to
    Richards in Manchester.          Mack's trip, though, was interrupted by
    a police officer who stopped him on an unrelated charge and had
    his vehicle towed.         The officer recovered a plastic bag during the
    stop, but it did not contain contraband.
    Mack     and    Melendez    regrouped   and     again    attempted      to
    execute the transaction.         Attuned to their communications through
    the wiretaps, the ATF sent an agent to conduct surveillance.                       The
    surveilling   agent        observed    an   individual     drive    to       Richards's
    residence in Manchester.         The surveilling agent suspected that the
    purpose of this trip was to deliver cocaine.                 But because it was
    - 7 -
    dark and raining, the agent could not identify the messenger. Even
    so, after tailing the messenger's vehicle to a gas station on its
    return journey, the agent was able to identify Mack as the driver.
    The agent followed the vehicle to a house in Worcester and watched
    Mack enter the house with a bag in hand.                  It could reasonably be
    inferred from this observation that Mack returned with the proceeds
    from his most recent cocaine delivery.
    Later that week (on April 25), Melendez informed Cordova
    that   he   needed   "seven     or   eight,"      which    the   ATF    case   agent
    interpreted to mean 700 or 800 grams of cocaine.                       On April 27,
    after further telephone exchanges, Melendez and Cordova were seen
    driving together toward a Massachusetts residence.                       On May 6,
    Cordova telephoned Melendez and — according to the ATF case agent's
    interpretation — agreed that Cordova would sell Melendez 500 grams
    of cocaine.       ATF agents then observed Cordova, another courier
    (Kevin Jean), and a third unidentified person meet at Mula's spot.
    The following day, Melendez telephoned Richards.                   The
    case agent — interpreting coded language — testified that this
    call was intended to make plans to deliver 400 grams of cocaine to
    Richards in New Hampshire.              Subsequent communications between
    Melendez and Jean        supported an inference             that Jean met       with
    Richards that afternoon.             On May 16, the case agent — again
    interpreting coded language — concluded that Melendez intended to
    procure     at   least   500   grams    of     cocaine    from   Cordova.       This
    - 8 -
    conclusion was based on the case agent's review of a telephone
    call between Melendez and Cordova, which reflected that Melendez
    told Cordova that he would buy "[p]robably more, but five minimum."
    A day later, Cordova communicated to Melendez that he had "531 in
    one piece," a statement that the case agent interpreted to mean
    531 grams of cocaine in one "brick."   Melendez directed Cordova to
    come to his residence, where video footage shows the two men
    meeting for about three minutes.
    On May 23 and 24, Melendez and Cordova discussed the
    possibility of Cordova again supplying Melendez with cocaine.
    These discussions proceeded notwithstanding the fact that Melendez
    was displeased with the quality of the product that he had received
    earlier.   On May 24, Melendez ordered "three" from Cordova, which
    the case agent interpreted to mean 300 grams of cocaine.      This
    order was placed after Cordova advised Melendez that he had secured
    a different source of supply for the drugs.
    Melendez and Cordova subsequently were seen inside a
    Massachusetts residence, after which Melendez told Rodriguez that
    he could have "1 or 2."   Following a telephone call with Melendez,
    Richards arrived at that location (about thirty minutes after
    Cordova had left) and then departed with a bag in hand.    Shortly
    thereafter, two officers stopped Richards and found about 200 grams
    of cocaine, about 105 grams of crack cocaine, and many "white
    - 9 -
    papers" in his possession. The officers confiscated the contraband
    but did not arrest Richards.
    On   June    5,   ATF   agents    executed    search       warrants    at
    Melendez's and Rodriguez's homes and arrested both men.                   In July,
    a federal grand jury sitting in the District of Massachusetts
    charged the defendants with one count of conspiracy to distribute
    and to possess with intent to distribute cocaine.                  See 
    21 U.S.C. § 846
    ; see also 
    id.
     § 841(a)(1).             The indictment further charged
    that 500 grams or more of cocaine was reasonably foreseeable and
    attributable to Melendez and that he had a prior conviction for a
    serious drug felony, see 
    21 U.S.C. § 802
    (57) — circumstances that
    warranted enhanced penalties under 
    21 U.S.C. § 841
    (b)(1)(B)(ii).
    The grand jury separately charged Melendez with one count of
    conspiracy    to    interfere    with   commerce     by   robbery      (Hobbs     Act
    robbery).    See 
    18 U.S.C. § 1951
    .
    B
    After    a   thirteen-day       trial   at   which   the    government
    presented evidence of these events, the jury found both Melendez
    and Rodriguez guilty of conspiracy to distribute cocaine and
    conspiracy to possess with intent to distribute 500 grams or more
    of cocaine.      See 
    21 U.S.C. § 846
    .        The jury separately found that
    Melendez had distributed 500 grams or more of cocaine under
    circumstances       in   which      such     distribution        was    reasonably
    foreseeable, after he had previously been convicted of a serious
    - 10 -
    drug felony.     See 
    21 U.S.C. § 841
    (b)(1)(B)(ii).     Finally, Melendez
    pleaded guilty to conspiracy to commit Hobbs Act robbery.          See 
    18 U.S.C. § 1951
    .
    The district court sentenced Rodriguez to a 52-month
    term of immurement for the drug conspiracy.          The court sentenced
    Melendez to concurrent terms of imprisonment of 156 months for his
    two conspiracy convictions.     These timely appeals followed.
    II
    We start with Melendez's challenge to the search warrant
    and wiretaps issued for his iPhone.       The wiretaps, in particular,
    yielded many of the communications deployed against Melendez at
    trial.
    A
    Some additional background is useful.          While Melendez
    was in police custody on an unrelated matter, the ATF confiscated
    his phone and sought a search warrant for its contents.               The
    government supported the warrant application with an affidavit
    from the ATF case agent asserting that there was probable cause to
    believe   that   Melendez   committed   drug   and   firearm   trafficking
    offenses for which the phone's contents would provide evidence.
    The affidavit identified two confidential sources (both of whom
    have prior convictions and were cooperating in return for potential
    leniency on pending criminal charges).
    - 11 -
    The first source advised that Melendez was the leader of
    the Massachusetts section of the Vice Lords gang and possessed and
    distributed    firearms.       The    second       source     substantiated   the
    allegations of Melendez's role in the Vice Lords and his possession
    and distribution of firearms.            That source also disclosed that
    Melendez was involved in the distribution of kilograms of crack
    and powder cocaine and that he sanctioned the use of violence to
    protect his drug-distribution activities.
    A magistrate judge issued a search warrant, and the
    government collected a mass of information on which it relied for
    a   later   wiretap      application.         In    support    of   the   wiretap
    application, the case agent explained that law enforcement was
    investigating Melendez's firearm and drug-distribution operations.
    The case agent noted Melendez's prior conviction, his apparent
    involvement in various criminal activities, and the statements
    from the two confidential sources.             In addition, the case agent
    noted statements from two more confidential sources.                  The third
    source substantiated Melendez's involvement in the Vice Lords gang
    and his firearms dealings, and the fourth source was identified as
    a potential cooperator.        The court granted the application.             Two
    other wiretap applications, which relied in part on evidence from
    the first wiretap, were also granted.
    Melendez filed motions to suppress both the evidence
    obtained    from   the    iPhone   and   the       communications    intercepted
    - 12 -
    through the wiretap.        The district court denied these motions.
    Melendez now challenges these denials.
    B
    We begin by rehearsing standards of review applicable to
    the denial of motions to suppress evidence from search warrants
    and wiretaps.
    1
    When presented with a challenge to the denial of a motion
    to suppress, "we examine the district court's 'factual findings
    for clear error and its legal conclusions, including its ultimate
    constitutional      determinations,      de    novo.'"     United     States   v.
    Sheehan, 
    70 F.4th 36
    , 43 (1st Cir. 2023) (quoting United States v.
    Moss, 
    936 F.3d 52
    , 58 (1st Cir. 2019)).                  Where, as here, the
    principal "basis for a probable cause determination is information
    provided by a confidential informant, the affidavit must provide
    some information from which a magistrate can credit the informant's
    credibility."      United States v. Gifford, 
    727 F.3d 92
    , 99 (1st Cir.
    2013).   Put bluntly, "the probability of a lying or inaccurate
    informer [must have] been sufficiently reduced."               United States v.
    Greenburg,   
    410 F.3d 63
    ,   69    (1st    Cir.   2005).     To   assess   an
    informant's credibility, we look to factors such as:
    (1) whether the affidavit establishes the
    probable veracity and basis of knowledge of
    persons supplying hearsay information; (2)
    whether an informant's statements reflect
    first-hand knowledge; (3) whether some or all
    - 13 -
    of the informant's factual statements were
    corroborated     wherever    reasonable     or
    practicable     (e.g.,     through      police
    surveillance);   and   (4)   whether   a   law
    enforcement   affiant   assessed,   from   his
    professional   standpoint,   experience,   and
    expertise, the probable significance of the
    informant's provided information.
    Gifford, 
    727 F.3d at 99
    .
    2
    Congress has instructed that law enforcement must make
    several specific showings before intercepting wire, oral, or
    electronic communications.         See 
    18 U.S.C. § 2518
    (3).               A wiretap
    application     must    show   probable        cause   to    believe      "that     an
    individual is committing, has committed, or is about to commit a
    [qualifying]     offense."         
    Id.
        § 2518(3)(a).            So,    too,     the
    application     must    show   probable        cause   to    believe      that     the
    intercepted     communications      will      yield    information       about     the
    offense   and   "that    either    the       individual     or    the    offense    is
    sufficiently connected to the means of communication that [the
    government] seeks to surveil."           United States v. Encarnacion, 
    26 F.4th 490
    , 497 (1st Cir. 2022); see 
    18 U.S.C. § 2518
    (3)(b), (d).
    What is more, the application must show that "normal
    investigative    procedures       have   been    tried      and   have    failed    or
    reasonably appear to be unlikely to succeed if tried or to be too
    dangerous."     
    18 U.S.C. § 2518
    (3)(c).           In short, the wiretap must
    be reasonably necessary to the investigation.                See Encarnacion, 26
    - 14 -
    F.4th at 497.     We will affirm a wiretap if "the application was at
    least 'minimally adequate' to support the authorization of the
    wiretap."    
    Id.
     (quoting United States v. Gordon, 
    871 F.3d 35
    , 43
    (1st Cir. 2017)).        So long as the application clears this bar, a
    motion to suppress the fruits of the wiretap will be denied.                See
    Gordon, 
    871 F.3d at 46
    .
    C
    We    separately    address     the   iPhone   search     and   the
    wiretaps.
    1
    Melendez contends that the search of his iPhone lacked
    probable cause because the supporting affidavit from the case agent
    (which incorporated the confidential sources' accounts) was not
    credible.       He says that the case agent failed to provide any
    information in support of the sources' credibility.                 See United
    States v. Barnard, 
    299 F.3d 90
    , 93 (1st Cir. 2002) (explaining
    that "[a] mere assertion of reliability without any information
    regarding the basis for the officer's belief, such as past tips
    leading to arrests," is a minimum showing that "is entitled to
    only slight weight" (internal quotations omitted)).                  He adds,
    moreover, that the confidential sources' past criminal convictions
    and   current    quest    for   leniency    undermine   their   credibility.
    Without independent evidence of credibility, his thesis runs,
    these sources "had every reason to lie" in exchange for more
    - 15 -
    favorable resolution of their pending criminal charges.            He adds
    that the information provided came without "any explanation for
    the[] basis of knowledge and consisted of conclusory allegations
    of   criminal   conduct   devoid    of    the   specificity   necessary   to
    determine whether the information was based on personal knowledge
    or hearsay."
    These   arguments       fail     because   they    depend   upon
    balkanization of the evidence.            As a start, the fact that the
    confidential sources were cooperating with law enforcement does
    not, in and of itself, undermine their credibility.             See United
    States v. Leonard, 
    17 F.4th 218
    , 225 (1st Cir. 2021) (explaining
    that, although confidential source "had pending charges at the
    time, providing perhaps an incentive to falsify information," this
    concern could be eased by offering information that corroborated
    the source's account); see also United States v. Vongkaysone, 
    434 F.3d 68
    , 74 (1st Cir. 2006) (explaining that, when one becomes an
    informant in exchange for potential leniency with pending criminal
    charges, "it [is] to his advantage to produce accurate information
    to the police so as to qualify for the leniency he [seeks]").
    To be sure, a source may overstate his knowledge in the
    hope that the government can use what little information he can
    provide to make an arrest and, thus, afford him leniency.                 The
    source may even fabricate information, such as in an attempt to
    mislead the government in furtherance of the criminal enterprise.
    - 16 -
    See, e.g., United States v. Ramírez-Rivera, 
    800 F.3d 1
    , 28 (1st
    Cir. 2015), overruled on other grounds by United States v. Leoner-
    Aguirre, 
    939 F.3d 310
    , 316-17 (1st Cir. 2019); United States v.
    Vigeant, 
    176 F.3d 565
    , 570 (1st Cir. 1999).
    In the case at hand, evidence supporting the veracity of
    the sources' information defeats any such theory.                     Each source
    spoke directly to investigators, so if either of them had later
    been found to be lying, he would have been exposed to additional
    punishment.       This provided an incentive for the sources to be
    truthful in their accounts.            See Barnard, 
    299 F.3d at 93
     ("Unlike
    an anonymous tipster, [a cooperating source is] . . . known to the
    police and could be held responsible if his assertions prove[]
    inaccurate or false.").          Additionally, it is noteworthy that the
    two    separate      sources    both     confirmed      essentially       the   same
    information     about    Melendez's          gang    affiliation    and    criminal
    activities. This level of consistency furnishes a form of internal
    corroboration.       See Leonard, 17 F.4th at 226 (noting importance of
    "cross-corroboration" among sources).
    There is more.       To bolster the sources' credibility, the
    government discloses additional context as to how the first two
    sources acquired their information.                 Notably, they observed some
    of Melendez's criminal activities first-hand.                 See United States
    v.    Maglio,   
    21 F.4th 179
    ,    186    (1st   Cir.   2021)   (noting     that
    confidential source's reliability is bolstered if he "personally
    - 17 -
    observed criminal activity").            The first source saw Melendez
    possess and/or distribute up to thirty-five firearms.              The second
    source was in a trailer with Melendez when he saw Melendez cook
    crack cocaine.       He also explained that Melendez generally had
    access to firearms and, on at least one occasion, observed Melendez
    in possession of a particular 9mm firearm.
    Even when these sources proffered information that was
    not based on personal observation, they included extensive details
    showing that they "ha[d] a legitimate basis [to] know[]" or that
    an    uninvolved    person   could    not     have   "easily   know[n]"   that
    information.    United States v. Khounsavanh, 
    113 F.3d 279
    , 284 (1st
    Cir. 1997).    For example, these sources shared the identities of
    additional gang members and some of Melendez's firearm straw
    purchasers. They also alerted the government to another unreported
    shooting.     Melendez does not assign clear error to the district
    court's reliance on any of these facts — which further undermines
    his suggestion that the informants lacked credibility.
    Last — but far from least — the government corroborated
    the   informants'    accounts   with     independent     information.      The
    address of the gang house was confirmed when law enforcement
    connected it to an overdose.          The authorities confirmed that the
    unreported shooting did occur.           And the government showed that
    Melendez was linked to a couple of the firearm purchases.                 Once
    - 18 -
    again, Melendez does not assign clear error to the district court's
    reliance on any of these facts.
    To say more would be to paint the lily.             Taking into
    consideration "the 'totality of the circumstances' disclosed in
    the supporting affidavit[]," we conclude that it showed "a fair
    probability that contraband or evidence of a crime [would] be
    found" in a search of the phone.         Barnard, 
    299 F.3d at 93
     (quoting
    United States v. Zayas-Diaz, 
    95 F.3d 105
    , 111 (1st Cir. 1996)).
    2
    Because the iPhone search was lawful, we must reject
    Melendez's derivative argument that the wiretaps relied on fruit
    of the poisonous iPhone tree.       See Utah v. Strieff, 
    579 U.S. 232
    ,
    237 (2016).     The evidence in support of the wiretaps is even
    stronger because it included a third confidential source who spoke
    directly to law enforcement and corroborated the allegations made
    by the first two sources.         That leaves his contention that the
    government failed to satisfy the necessity requirement as to the
    wiretap applications.      In that regard, our inquiry focuses on
    whether "other investigative procedures [were] tried and failed"
    or   whether   the   government   explained    "why   [these   procedures]
    reasonably appear[ed] to be unlikely to succeed if tried or [would]
    be too dangerous."     United States v. Santana-Dones, 
    920 F.3d 70
    ,
    76 (1st Cir. 2019) (quoting United States v. Nelson-Rodriguez, 
    319 F.3d 12
    , 32 (1st Cir. 2003)); see 
    18 U.S.C. § 2518
    (1).
    - 19 -
    Melendez argues that the wiretap application did not
    "explain why information from recorded phone conversations, text
    messages,     and       controlled      drug     buys      between       [the     fourth
    confidential source] and [Melendez] would not accomplish the goals
    of the investigation."           This argument lacks force.
    The wiretap affidavit offered at least three compelling
    reasons     for   the        search.     The     case      agent    explained      that
    sophisticated       organizations        remain      wary      of   other       methods,
    particularly confidential informants who try to infiltrate the
    organization.       The government had tried and failed to introduce
    two separate confidential informants into the organization.                          And
    a confidential informant posing as a buyer could learn only so
    much about the structure of the conspiracy and the identities of
    those involved.         Consequently, we hold that the district court did
    not err in finding that the government satisfied the necessity
    requirement by "offer[ing] specific and reasonable explanations
    why" other investigative techniques "would have been unproductive,
    too   dangerous,        or   insufficient      to    achieve    its      investigative
    goals."     Encarnacion, 26 F.4th at 501.                  And because the court
    supportably concluded that the government satisfied the statutory
    requirements      for    a    wiretap   and    did   not    rely    on    any   clearly
    erroneous facts, we see no principled basis for overturning its
    denial of Melendez's motion to suppress.
    - 20 -
    III
    The     defendants     jointly       challenge   two   categories   of
    admitted   evidence      that     they    deem    both   improper   and   unduly
    prejudicial under prevailing evidentiary rules.
    A
    Prior to trial, Melendez filed a motion in limine,
    seeking    to    exclude    any     law       enforcement   interpretation     of
    statements      made   during   the   wiretapped      conversations.      During
    trial, Rodriguez made the same objection.                The defendants argued
    that any such interpretation would constitute impermissible lay
    testimony under Federal Rule of Evidence 701.                See Fed. R. Evid.
    701.   The district court reserved decision.                At trial, however,
    the court denied the motion as to some testimony.                 The defendants
    now appeal.
    A few additional facts help to provide useful context.
    The government's principal witness at trial was the ATF case agent,
    who relied heavily on experience gained from his work over a decade
    and a half in law enforcement.                  This work included extensive
    experience in drug investigations.                As the lead agent in this
    investigation, he reviewed numerous text messages and telephone
    calls that had been intercepted under the wiretap.                  Although he
    was never designated as an expert witness, the court permitted him
    to offer his opinion on the meaning of several obscure statements
    - 21 -
    gleaned   from    these    text       messages    and    telephone   calls.         The
    defendants assign error to the admission of this testimony.
    B
    We review a preserved objection to the district court's
    admission or exclusion of evidence for abuse of discretion.                         See
    United States v. Kilmartin, 
    944 F.3d 315
    , 335 (1st Cir. 2019).                        A
    discretionary decision "cannot be set aside by a reviewing court
    unless it has a definite and firm conviction that the court below
    committed a clear error of judgment in the conclusion it reached
    upon a weighing of the relevant factors."                     
    Id.
     (quoting In re
    Josephson, 
    218 F.2d 174
    , 182 (1st Cir. 1954)).
    Withal,      abuse    of     discretion      is   not    a    monolithic
    standard.     See United States v. Padilla-Galarza, 
    990 F.3d 60
    , 73
    (1st Cir. 2021).          It "encompasses 'de novo review of abstract
    questions of law, clear error review of findings of fact, and
    deferential review of judgment calls.'" 
    Id.
     (quoting United States
    v. Lewis, 
    517 F.3d 20
    , 24 (1st Cir. 2008)).
    Federal      Rule    of    Evidence    701   requires    that    opinion
    testimony from a witness who is not testifying as an expert be
    "rationally      based    on    the    witness's    perception";         "helpful   to
    clearly understanding the witness's testimony or to determining a
    fact in issue"; and "not based on scientific, technical, or other
    specialized knowledge within the scope of Rule 702." Fed. R. Evid.
    701.   "Application of Rule 701 in the drug-trafficking context is
    - 22 -
    not novel:    'we have long held that government witnesses with
    experience in drug investigations may explain the drug trade and
    translate coded language' for factfinders through lay opinion
    testimony."   United States v. Dunston, 
    851 F.3d 91
    , 96 (1st Cir.
    2017) (quoting United States v. Rosado-Pérez, 
    605 F.3d 48
    , 56 (1st
    Cir. 2010)); accord United States v. Hoffman, 
    832 F.2d 1299
    , 1310
    (1st Cir. 1987) (holding that one who is experienced in the field
    can "interpret[] . . . codes and jargon used in the drug trade"
    under Rule 702).   To comply with the constraints of Rule 701, "such
    interpretive testimony must be anchored in the witness's personal
    experience    in    the     field . . . and    his     experience-based
    understanding of the meaning of the terms used."          Dunston, 
    851 F.3d at 97
    .   Of course, such a law enforcement officer must limit
    his   interpretation   to   language   that   is   "peculiar   to   the[]
    defendants" in the particular case and ground his interpretation
    "largely on [his] immersion in the details of [the relevant]
    investigation."    United States v. Albertelli, 
    687 F.3d 439
    , 446-
    47 (1st Cir. 2012).
    C
    On appeal, the defendants first attack the case agent's
    testimony, "[b]ased on [his] experience in this investigation,"
    that "Shit Lito" described transporting cocaine to Lito who lived
    in New Hampshire and that "Mula's spot" was 69 Cutler Street in
    - 23 -
    Worcester    (where   cocaine   was   distributed).2          (Alterations    in
    original.)     The defendants assert that the case agent was not
    "understanding,       interpreting,     and     translating       purposefully
    confusing drug lingo."       United States v. Belanger, 
    890 F.3d 13
    , 25
    (1st Cir. 2018).        To the contrary, they contend that "he was
    interpreting     perfectly    clear   communications      about     a   meeting
    between [Melendez] and Mack to infer that Mack was going to obtain
    cocaine   from   [Melendez]     and   deliver   it   to   a    person   in   New
    Hampshire, even though Mack's car was stopped and searched on the
    way to New Hampshire and no drugs were found."
    In this circumstance, it is within the trial court's
    discretion to allow a law enforcement officer to provide lay
    opinion testimony when he can — based on his experience with drug
    investigations and his involvement in the current case — "explain
    the drug trade and translate coded language."             Dunston, 
    851 F.3d at 96
     (quoting Rosado-Pérez, 
    605 F.3d at 56
    ).                 When the witness
    2 Because neither defendant objected to all the testimony
    that we discuss below, some aspects of their challenges have not
    been properly preserved and, thus, invite plain error review. See
    United States v. Belanger, 
    890 F.3d 13
    , 27 (1st Cir. 2018) (holding
    that "individual defendants in a joint criminal trial are required
    to raise their own objections unless the district court
    'specifically states that an objection from one defendant will be
    considered an objection for all defendants'" (quoting United
    States v. Leon-Delfis, 
    203 F.3d 103
    , 113 (1st Cir. 2000))). But
    the government "treats these challenges as raised by both
    [d]efendants" and does not invoke the plain error standard. We
    follow the government's lead and evaluate the district court's
    challenged rulings for abuse of discretion.
    - 24 -
    deciphers a coded phrase, that "'interpretation . . . ought to be
    explicable' — a standard that typically requires the witness to
    point to similar statements surrounding similar events."                         Id. at
    97 (quoting Albertelli, 
    687 F.3d at 450
    ).                     Even so, a court must
    exclude such testimony when "the witness is no better suited than
    the jury to make the judgment at issue."                  United States v. Vázquez-
    Rivera, 
    665 F.3d 351
    , 363 (1st Cir. 2011) (quoting United States
    v. Meises, 
    645 F.3d 5
    , 16 (1st Cir. 2011)).
    Here, the district court had a sufficient basis to find
    that the case agent's testimony satisfied these standards.                            The
    defendants' contrary contention misunderstands the purport of the
    testimony.         Because the expressions "Shit Lito" and "Mula's spot"
    are unclear to one without inside knowledge of the defendants'
    mode of communication, it was within the court's discretion to
    allow the experienced case agent to explain that the defendants
    used   this    jargon       as   shorthand       for    transporting       cocaine    and
    describing a house owned by Rodriguez's (Mula's) family from which
    the    defendants      facilitated        drug      distribution.          Although    no
    interpretation        was    needed      to   understand       that    a   meeting    was
    discussed, it was unclear where the meeting was to occur ("Mula's
    spot") and what purpose it served ("Shit Lito").
    We    discern      no   abuse   of     discretion       in   allowing   the
    government to fill these gaps.                      The case agent had reviewed
    thousands     of     telephone        calls   and      text   messages     between    the
    - 25 -
    defendants and their co-conspirators and could interpret them with
    the benefit of many years of immersion in the drug-trafficking
    world.     The record supports the district court's conclusion that
    he   was    readily        familiar   with     the   defendants'        linguistic
    preferences and the likely meaning of their jargon.                   See Belanger,
    
    890 F.3d at 25-26
     (permitting lay opinion testimony by officer who
    had worked for DEA for about sixteen years, was a case agent on
    the matter, had helped "conduct[] physical surveillance," and had
    "listen[ed]    to     the    thousands    of   calls    as     they    came     in");
    Albertelli, 
    687 F.3d at 447
     (permitting lay opinion testimony by
    officer who had investigated matter for years, had become "familiar
    with the voices of the major participants," and had studied other
    materials recovered from defendants).                And the jury stood to
    benefit     from     his    specialized   knowledge.          Accordingly,        the
    defendants' claim of error fails.
    Even so, the case agent's testimony went further by
    concluding that the government "believed . . . Mack was going to
    obtain     cocaine    from . . . Melendez       at     69    Cutler    Street    and
    transport it to Lito in Manchester, New Hampshire." The defendants
    suggest that, by offering this conclusion, the case agent was
    inferring guilt from "'the totality of information gathered' in
    the agent's investigation."           United States v. Agramonte-Quezada,
    
    30 F.4th 1
    , 19 (1st Cir. 2022) (quoting United States v. García-
    Sierra, 
    994 F.3d 17
    , 26 (1st Cir. 2021)).                   This function, they
    - 26 -
    say, is the sole province of the jury.                 Cf. García-Sierra, 994
    F.3d       at   26-27   (explaining   that     "overview   testimony"   by   law
    enforcement "'effectively usurp[s] the jury's role as fact-finder'
    by suggesting which inferences the jury should draw from the
    evidence        appropriately   before       it"   (alteration   in   original)
    (quoting Meises, 
    645 F.3d at 16
    )).
    We reject this suggestion.         The case agent offered this
    opinion in response to a question about specifically identified
    telephone calls that discussed this meeting.               He was not cobbling
    together scattered evidentiary bricks to construct a "summary
    overview" of a broader conspiracy for which this suspected drug
    transaction provided evidence.           United States v. Pérez-Vásquez, 
    6 F.4th 180
    , 199 (1st Cir. 2021).          Given the case agent's experience
    and the context here, we believe that it was within the trial
    court's discretion to allow him to offer an opinion on the meaning
    of specific and limited conversations and, thus, to admit the
    challenged testimony.3
    Although this testimony resembles later testimony to which
    3
    the court sustained an objection ("[W]e believed that . . . Mack
    obtained cocaine from 69 Cutler Street and was transporting that
    cocaine to Manchester, to . . . Richards."), the two situations
    are not comparable.    In the latter situation, the case agent
    offered the cited opinion in response to a question that asked
    him to consider a more extensive range of evidence — making it
    more likely for the jury to regard his proffered testimony as a
    government-sanctioned summary of the evidence portraying the
    defendants as guilty of the crimes charged.
    - 27 -
    Nor does the fact that officers did not find cocaine
    during a search of Mack's vehicle throw shade on the case agent's
    ability to offer interpretive testimony as to the defendants'
    communications.      See Robinson v. Watts Detective Agency, Inc., 
    685 F.2d 729
    ,    739   (1st    Cir.   1982)    ("Whether . . . [a       witness's]
    opinion is accurate goes to the weight of the testimony, not its
    admissibility.").         That this one search came up empty may raise a
    question about the government's theory that the drug-distribution
    scheme   described          in    the     defendants'     communications     was
    effectuated.         But     it   says     nothing     dispositive   about   the
    government's showing that the case agent was familiar with drug
    vernacular generally and with the defendants' jargon specifically.
    It was this familiarity that qualified the case agent to offer his
    interpretation       of     language      particular     to   the    defendants'
    operations.     See Albertelli, 
    687 F.3d at 446
    .
    We do not gainsay that the absence of cocaine in the
    vehicle of the person whom the government believed to be the
    transporter provided exculpatory evidence with respect to the
    ultimate issue of guilt.          But the appropriate way to explore this
    discrepancy was through cross-examination.               See Dunston, 
    851 F.3d at 97
     (explaining that voir dire and cross-examination of law
    enforcement witness who provided interpretive testimony "mitigated
    any risk of unfair prejudice from his testimony").              Here, however,
    the defendants failed to call attention to this discrepancy on
    - 28 -
    cross-examination.       And as we explained earlier, the accuracy of
    an opinion poses a question distinct from the question of its
    admissibility.     See Robinson, 
    685 F.2d at 739
    .            Thus, this claim
    of error fails.
    D
    The     defendants      both    challenge      the     case    agent's
    testimony,   based   on    his    experience    and   the      context   of   the
    conversations, that various numbers and terms referred to specific
    amounts of cocaine.       We sample some of these conversations.
    The     case    agent   interpreted     "the      whole   thing"     as
    referring to one kilogram of cocaine.             "I got five," he said,
    referred to 500 grams of cocaine.         Needing "seven (7) or eight (8)
    something like that" meant 700 or 800 grams of cocaine.             "I'm still
    waiting on that shit" signified that the person "was likely waiting
    on his own supplier for cocaine."           And "I got 531 in one piece"
    referred — as the case agent saw it — to 531 grams of cocaine that
    needed to be sold in a single transaction.
    The defendants do not deny that they used these phrases
    in their discourse with each other.            They submit, however, that
    the case agent "was being asked to interpret what was otherwise
    plain English" and that "the jury was, or would [have] become,
    well-educated enough as to the nature and scope of the alleged
    conspiracy to make its own determination as to the quantity of
    - 29 -
    drugs being discussed, if, indeed, drug quantities were even being
    discussed at all."
    They add that — aside from general references to context
    — the case agent never explained his interpretations. For example,
    there was no elaboration as to why phrases like "the whole thing"
    were code words that carried more than their ordinary meaning.
    With no significant ambiguity, the defendants maintain, the case
    agent, in effect, was telling the jury what result to reach.
    When a law enforcement officer provides interpretive
    testimony as lay opinion, the government must erect a foundation
    to ensure that the opinion fulfills the requirements of Rule 701.
    See United States v. Prange, 
    771 F.3d 17
    , 27 (1st Cir. 2014).                 For
    its   part,    the    district      court   must   assess   whether   the    "law
    enforcement officer . . . is equipped by knowledge, experience,
    and training to break [criminal] codes [such that his testimony]
    can   help     to    inform   the    factfinder's    understanding"    of     the
    communications at issue.            Dunston, 
    851 F.3d at 97
    .    Moreover, the
    witness must "point to [a] rational basis for the interpretation
    offered" such that his opinion does more than just speculate.
    Albertelli, 
    687 F.3d at 447
    .
    In this instance, we think that the defendants are too
    quick to discount the vagueness of their communications.                    If it
    was unclear that the communications were even discussing drugs (as
    the defendants suggest), it would be puzzling to call these
    - 30 -
    communications unambiguous such that interpretive testimony would
    be forbidden. For example, the phrase "still waiting on that shit"
    makes clear that the speaker is waiting on something but remains
    unclear as to what the speaker may be waiting for.           It follows
    that one familiar with communications between these persons (and
    drug vernacular in general) is well-situated to explain that such
    vague expressions described drug transactions.     See United States
    v. Valbrun, 
    877 F.3d 440
    , 444 (1st Cir. 2017) (permitting co-
    conspirator to explain vague statements like "putting the thing,"
    "my stuff," and "hid[ing] it well" (alteration in original)).
    It is perhaps more difficult to justify the government's
    reading of numbers that appeared to refer to quantities of cocaine.
    After all, reading Arabic numerals requires no special expertise.
    In addition, other communications did not use single digits to
    represent large quantities but, rather, wrote out three-digit
    numbers (e.g., "531 in one piece").      Finally, the search of one
    residence uncovered only about two grams of cocaine, perhaps
    indicating that the defendants sometimes did deal in single-digit
    quantities of cocaine.     Against this backdrop, the defendants
    suggest    that   the   single-digit    numbers   in   the     relevant
    communications might have meant just that — single-digit grams of
    cocaine.
    We think that the defendants are more ready than the
    circumstances permit to assume their own interpretation of these
    - 31 -
    communications.    Although a number like "five" might refer to five
    grams of cocaine (as the defendants submit), it also might be
    shorthand for 500 grams (as the government contends).            Moreover,
    there is no reason that "five" — without further context — could
    not plausibly mean five kilograms (which would not be a facially
    unreasonable amount for veteran drug distributors to handle).          So,
    too, it is common in many situations to omit the units or zeroes
    after a number when that information would be clear from the
    context. See, e.g., Belanger, 
    890 F.3d at 28-29
     (noting importance
    of context to understanding vague "[p]hrases like 'drop 10 off'");
    Dunston, 
    851 F.3d at 96-97
     (permitting DEA agent "to testify about
    the meaning of slang terms and jargon" because, among other
    considerations, he "took into account the context in which those
    terms were used").     Police found several hundred grams of cocaine
    on    Richards's   person,   meaning   that   the   enterprise   involved
    hundreds of grams of crack and cocaine.        And the one three-digit
    number (531) that they wrote out could not have been abbreviated
    the way other three-digit numbers were abbreviated (such as 500
    becoming "5") without losing specificity in the last two digits.
    Given his familiarity with the drug trade, the case agent was well
    suited to resolve the uncertainties surrounding the defendants'
    cryptic numerical references.      See Albertelli, 
    687 F.3d at
    446-
    47.
    - 32 -
    We are mindful that no direct evidence confirms the case
    agent's specific interpretations.       But these points show that
    plausible competing interpretations exist for the language used.
    And the case agent's testimony on these points         provided the
    defendants with ample fodder for cross-examination.      They could
    have pressed the case agent on why he understood these numbers to
    refer to hundreds of grams of cocaine, but they eschewed that
    course of action.
    That leaves the defendants' contention that the case
    agent failed to explain the specific bases for his interpretations.
    See Prange, 
    771 F.3d at 28
     (noting importance of "an objective
    basis for the agent's understanding that [defendant] knew they
    were speaking in coded terms and his impression of what [defendant]
    actually meant").     They maintain that the case agent's testimony
    was based on nothing more than his review of the telephone calls
    that the jury — without specialized knowledge — could have listened
    to and understood to form its own opinion.   This contention misses
    the mark.
    The case agent reviewed the voluminous record — which
    would have been impractical to present to the jury in its entirety
    — with the advantage of over a decade of experience in drug
    investigations.     Based on this experience, he could more readily
    determine when and how the defendants employed ambiguous language
    to mask their discussions of illegal activities.    For example, he
    - 33 -
    observed that the defendants spoke about drugs in a "guarded"
    manner, which contrasted with how they spoke about other topics
    (like personal affairs).   And he connected these conversations to
    other aspects of the investigation, such as drug transactions that
    the police had observed.   On this scumbled record, we cannot say
    that the district court abused its wide discretion by admitting
    this testimony for such an interpretive purpose.
    E
    On the sixth day of trial, two local police officers
    each testified that they were assigned to a "gang unit."4       The
    district court overruled Rodriguez's objections and denied his
    request for a limiting instruction.    Before us, he asserts — based
    on these testimonial tidbits — that jurors may have inferred
    unfairly that he and Melendez were in a gang and, thus, had an
    "agreement . . . to work together to achieve unlawful ends."     In
    a close case "where proof of [his] willful agreement" to distribute
    or possess with intent to distribute drugs was "otherwise lacking,"
    Rodriguez posits, seemingly small details like this one might have
    "tipped the scales" in convincing the jury that he was guilty of
    conspiracy.
    4 Several days later, a third officer mentioned that he had
    performed surveillance with an officer "from the gang unit."
    Neither defendant objected to this comment, and we regard any such
    objection as waived. See United States v. Zannino, 
    895 F.2d 1
    ,
    17 (1st Cir. 1990).
    - 34 -
    The    government   demurs.     It   submits   that    these   few
    mentions simply provided background and points out that there was
    never an allegation that either defendant belonged to a gang.
    Rodriguez rejoins that the picture is not quite as unambiguous as
    the one the government tries to paint:       in his view, the government
    recognized the potential for bias, yet highlighted the prejudicial
    aspects of the testimony that was admitted.            In support, he notes
    that the government complied with the court's request not to
    mention any affiliation that other law enforcement witnesses may
    have had with a gang unit.
    Inasmuch as Rodriguez objected below, our review of this
    claim of error is for abuse of discretion.              See Kilmartin, 944
    F.3d at 335.       It is, of course, arguable that the mention of a
    gang unit may have left more than a passing impression on the
    jurors.     That possibility is problematic because this information
    had no apparent relevance to the ATF's work in uncovering the
    defendants' drug-distribution activities.              And here, unlike in
    United States v. Liranzo, 
    385 F.3d 66
     (1st Cir. 2004), the court
    did   not   give    a   limiting   instruction    to    minimize   potential
    prejudice.    See 
    id. at 71-72
     (discerning no abuse of discretion in
    allowing officers to testify about their "assignments to the gang
    task force" when "the evidence was not admitted to show [the
    defendant's] gang membership and the limiting instruction made
    that clear").
    - 35 -
    Even with these considerations in mind, we need not
    tarry.    We take no view as to whether admitting this testimony was
    error at all:     the testimony was harmless in any event.         Aside
    from a few offhand references to a gang unit, there is no sign
    that the government presented its case in a way that either
    suggested that the conspiracy was organized by a gang or that any
    defendant was acting as a member of a gang.   And as the defendants
    acknowledge, the most damning evidence against them was their
    communications, which the case agent characterized as describing
    drug transactions.    This evidence was reinforced by other proof,
    such as cocaine recovered from physical searches.      Given that the
    gravamen of the government's case was unrelated to any potential
    gang affiliation, we conclude that "it is highly probable that
    [any] error did not influence the verdict."          United States v.
    Piper, 
    298 F.3d 47
    , 56 (1st Cir. 2002).
    Rodriguez questions this reasoning.      He suggests that
    the jury's uncertainty about whether a conspiracy had been proven
    (as evidenced by its question, see infra at 41) made it more likely
    that the jury eventually relied on other factors — like the
    defendants' imputed gang membership — in concluding that the
    defendants were guilty.    Jurors, he muses, may have inferred that
    the defendants intended to enter into an agreement to distribute
    cocaine     because    membership   in    a   gang      "implies      an
    agreement . . . to work together to achieve unlawful ends."         But
    - 36 -
    this is unadulterated conjecture, and we are left to speculate as
    to whether the jury may or may not have followed this line of
    reasoning.
    The    jury    would   have       had    to   construct     a    chain   of
    inferences to impute an illegal agreement between Rodriguez and
    Melendez based on the testifying officers' gang-unit assignments
    when no other mention of a gang appeared at trial.                         Nor can we
    agree with Rodriguez's assertion that "proof of [his] willful
    agreement to advance" the cocaine-distribution conspiracy was
    "otherwise lacking."        To the contrary, the government's evidence
    showed   that    the     drug-trafficking          operation   used    Rodriguez's
    residence to dispatch drugs, that the operation used Rodriguez's
    car to ferry drugs to New Hampshire, and that Rodriguez cooked
    crack cocaine on Melendez's instruction.                  Consequently, we are
    left without sufficient reason to believe that the verdict was
    tainted by prejudice associated with the passing mentions of a
    gang unit.      We therefore reject Rodriguez's claim of error.
    IV
    Rodriguez       also   mounts       a     challenge    to        the   jury
    instructions.
    A
    "When a party assigns error not to the substance of a
    jury instruction but to the court's decision to give a requested
    instruction at all, our review is de novo."                 Shervin v. Partners
    - 37 -
    Healthcare Sys., Inc., 
    804 F.3d 23
    , 47 (1st Cir. 2015).                 To prevail
    on    a    claim   of   failure   to    give   a   requested   instruction,   the
    requesting party must show that "the omitted instruction [was]
    integral to an important part of the case and its content [was
    legally correct and] not otherwise substantially covered by the
    instructions as given."           
    Id.
    "Like the district court, [w]e examine the evidence on
    the record and . . . draw those inferences as can reasonably be
    drawn therefrom, determining whether the proof, taken in the light
    most favorable to the [requesting party,] can plausibly support
    the theory of the [party]."             United States v. Baird, 
    712 F.3d 623
    ,
    627 (1st Cir. 2013) (first and second alterations in original)
    (internal quotations omitted).                 When all is said and done, a
    reviewing court must determine "whether the evidence, viewed in
    the light most favorable to the proponent of the instruction,
    justifies jury consideration of the underlying issue."                   Butynski
    v. Springfield Term. Ry. Co., 
    592 F.3d 272
    , 276 (1st Cir. 2010).
    If the requesting party has failed to preserve a claim
    of instructional error, our review is only for plain error.                   See
    United States v. Pennue, 
    770 F.3d 985
    , 989 (1st Cir. 2014).                 Under
    this demanding standard, the party must show "(1) that an error
    occurred (2) which was clear or obvious and which not only (3)
    affected [his] substantial rights, but also (4) seriously impaired
    the       fairness,     integrity,      or   public   reputation   of    judicial
    - 38 -
    proceedings."      United States v. Duarte, 
    246 F.3d 56
    , 60 (1st Cir.
    2001).
    B
    Rodriguez first contends that, because the government
    had to carry the burden of proof in establishing the identities of
    "the players," a jury instruction warning of the inaccuracy of
    cross-racial identifications was critical to ensure that the jury
    correctly identified the conspirators.        Nevertheless, the district
    court    refused     his   request   to     instruct    on    cross-racial
    identification.      Rodriguez assigns error to this refusal.
    As relevant here, a white officer identified Mack, a
    Black man, as the driver of a vehicle purportedly carrying drugs
    while it was dark and rainy.     White officers also identified other
    individuals who were either Black or Hispanic.         Had an instruction
    highlighting these concerns been given, Rodriguez insists, jurors
    may have doubted his involvement in the charged conspiracy.
    Because this claim of error was preserved, our review is
    de novo.   Shervin, 
    804 F.3d at 47
    .       Nevertheless, the claim fails.
    The most conspicuous badge of failure is that                the requested
    instruction does not address a sufficiently important issue.            To
    begin, Rodriguez himself was never implicated in the conspiracy
    through a cross-racial identification.        His claim of error relies
    on the possible misidentification of his co-conspirators such that
    the jury would have doubted that he conspired with anyone to
    - 39 -
    possess and distribute drugs.        But the government need not prove
    the identity of each and every conspirator; it need only prove
    that at least one other person conspired with the defendant to
    commit the charged offenses.       See United States v. Pena, 
    24 F.4th 46
    , 75-76 (1st Cir. 2022).      As long as Rodriguez engaged in this
    conspiracy (for which there was copious evidence beyond encounters
    with potentially misidentified co-conspirators), it was immaterial
    that others may have been misidentified in particular encounters.
    Let us be perfectly clear.            We express no opinion on
    whether a cross-racial identification instruction might sometimes
    be legally required.      We hold only that, in these circumstances,
    the omitted instruction was not "integral to an important part of
    the case."      Shervin, 
    804 F.3d at 47
    .          Accordingly, Rodriguez's
    claim of error comes up empty.
    C
    Rodriguez next contends that the evidence showed — at
    most — that he trafficked in cocaine, not that he was a member of
    the charged conspiracy.       As a result, he maintains, the court
    committed    reversible    error     by     not    giving   a   buyer-seller
    instruction.5    In other words, he contends that the district court
    5 Although the purchase of illicit drugs reflects an unlawful
    agreement between the buyer and the seller, such a transaction
    does not necessarily include the additional elements needed to
    prove a conspiracy to possess and distribute drugs. See United
    States v. Moran, 
    984 F.2d 1299
    , 1303 (1st Cir. 1993) (explaining
    that conspiracy requires, inter alia, "[c]ommon knowledge,
    - 40 -
    should have instructed the jury that an agreement to purchase "1
    or   2,"   in    itself,    was   insufficient   to    prove    the   charge    of
    conspiracy.          Because this claim of error was not advanced below,
    our review is for plain error.          See Pennue, 
    770 F.3d at 989
    .
    Plain error is plainly absent. The meat of the requested
    instruction was substantially covered elsewhere in the court's
    charge.     For example, the court's conspiracy instruction required
    the jury to find that each particular defendant intended to engage
    in the conspiracy.         It follows that, the jury — in accordance with
    the district court's instructions — could not have convicted
    Rodriguez of conspiracy if it believed that the evidence proved no
    more   than      a    buyer-seller   transaction      between   Rodriguez      and
    Melendez.       See United States v. Moran, 
    984 F.2d 1299
    , 1303 (1st
    Cir. 1993).
    To cinch the matter, the district court — after the jury
    had begun its deliberations — responded to a jury question on this
    subject.        The court told the jurors that, as a precursor to a
    finding of guilt on the conspiracy charge, "[i]t is not enough to
    prove that the defendants conspired to purchase cocaine."                   This
    supplemental instruction sufficiently distinguished a simple one-
    interdependence, [and] shared purpose").    In a conspiracy to
    acquire and distribute cocaine, "two individuals agree that one
    of them will sell cocaine and the other will assist." 
    Id.
     By
    contrast, in a buyer-seller transaction, "one merely sells the
    same cocaine to another without prearrangement and with no idea
    of or interest in its intended use." 
    Id.
    - 41 -
    off purchase of cocaine from Melendez (as Rodriguez characterized
    his involvement) from a more complex conspiracy to purchase and
    distribute    large   amounts   of    cocaine   as   a   middleman    (as   the
    government    characterized     his   involvement).       Put   another     way,
    Rodriguez could not have been convicted of conspiracy to distribute
    and conspiracy to possess with intent to distribute cocaine (as
    the indictment charged) if all he had agreed to undertake was to
    purchase cocaine once from Melendez.        See supra note 4.
    To be sure, Rodriguez may have drawn some solace from
    the precise language of his requested buyer-seller instruction.
    But a defendant is not entitled to dictate the trial court's
    phraseology.     As "long as the charge sufficiently conveys the
    [party]'s theory, it need not parrot the exact language that the
    [party] prefers."     United States v. McGill, 
    953 F.2d 10
    , 12 (1st
    Cir. 1992).     Nor is the district court "obligated to instruct on
    every particular that conceivably might be of interest to the
    jury."   United States v. DeStefano, 
    59 F.3d 1
    , 3 (1st Cir. 1995).
    In this instance, we are convinced that the thrust of the requested
    buyer-seller    instruction     was   substantially      covered     by   other
    instructions.     See Shervin, 
    804 F.3d at 47
    .             Consequently, we
    cannot say that it was error at all — let alone clear or obvious
    error — either to omit a buyer-seller instruction or to refrain
    from providing a more detailed conspiracy charge.
    - 42 -
    V
    In the revised presentence investigation report (PSI
    Report),    the    probation    officer     responded   to    the      government's
    objection to the original report by increasing its drug weight
    calculation from about three kilograms to about four kilograms.
    This elevated Melendez's base offense level to twenty-eight.                     See
    USSG §2D1.1(c)(6).         In the process, the probation officer declined
    to adopt Melendez's contention that the government was engaged in
    double counting and that, therefore, the drug weight should total
    around 1.75 kilograms for a base offense level of twenty-four.
    See id. §2D1.1(c)(8).          The probation officer also rejected the
    government's suggestion that Melendez should receive a four-level
    "organizer    or    leader"     enhancement     instead      of   a    three-level
    "manager or supervisor" enhancement.            See id. §3B1.1(a)-(b).
    At     the   disposition    hearing,    Melendez          reprised   his
    objection to the drug-weight calculation.               He explained that the
    government's       figure    double-counted     some    of    the      cocaine    by
    including the same amount on both purchase and sale.                    See United
    States v. Lee, 
    892 F.3d 488
    , 491 (1st Cir. 2018).                 The government
    conceded that it would be improper to count the same cocaine both
    when it was purchased and when it was sold but disputed that any
    such double counting had occurred.              The court agreed with the
    government.       In addition, the court sustained the government's
    objection     to     the     lesser     role-in-the-offense            enhancement,
    - 43 -
    classified Melendez as an organizer or leader, and imposed the
    four-level enhancement.     See USSG §3B1.1(a).
    With another adjustment (not material here), the court
    calculated a total offense level of thirty-four.                 Combined with
    his criminal history category (IV), he faced a guideline sentencing
    range of 210 to 262 months.           The court proceeded to impose a
    downwardly variant sentence of 156 months.
    Melendez challenges two enhancements.          First, he assails
    the attribution to him of 4.2 kilograms of cocaine — an attribution
    that put him over the 3.5-kilogram threshold needed to elevate his
    base offense level from twenty-six to twenty-eight.                   See id.
    §2D1.1(c)(6)-(7).     Second, he challenges the four-level "organizer
    or leader" enhancement.         See id. §3B1.1(a).         We deal with these
    challenges sequentially.
    A
    "[W]e review the [sentencing] court's interpretation and
    application of the sentencing guidelines de novo and assay any
    subsidiary findings of fact for clear error."                United States v.
    Walker, 
    665 F.3d 212
    , 232 (1st Cir. 2011).             "[T]he usual rules of
    evidence do not pertain at sentencing.               Rather, the . . . court
    may   base   sentencing   determinations        on   any   evidence   that    it
    reasonably finds to be reliable."         
    Id.
    The   government    bears    the    burden     of   proving     any
    sentencing enhancement by a preponderance of the evidence.                   See
    - 44 -
    
    id.
       Where, as here, there is no direct evidence of the total
    quantity    of   drugs    attributable    to   a   drug-trafficker,   the
    sentencing court may make "[a] 'reasoned estimate[] based on
    historical data.'"       United States v. Bernier, 
    660 F.3d 543
    , 546
    (1st Cir. 2011) (second alteration in original) (quoting United
    States v. Platte, 
    577 F.3d 387
    , 392 (1st Cir. 2009)).        This "drug-
    quantity calculation is a factual finding" that we review for clear
    error. United States v. Kinsella, 
    622 F.3d 75
    , 86 (1st Cir. 2010).
    So, too, because "[r]ole-in-the-offense determinations
    are innately fact-specific, . . . 'we review such determinations
    only for clear error.'"       United States v. Rostoff, 
    53 F.3d 398
    ,
    413 (1st Cir. 1995) (quoting United States v. Dietz, 
    950 F.2d 50
    ,
    52 (1st Cir. 1991)).      To show that a defendant qualifies for the
    "organizer or leader" enhancement, "the government's evidence must
    satisfy both a scope requirement (that is, the evidence must show
    that the enterprise involved five or more participants or was
    otherwise extensive) and a status requirement (that is, that the
    defendant acted as an organizer or leader of the enterprise)."
    United States v. Rivera, 
    51 F.4th 47
    , 51 (1st Cir. 2022).
    For guidance in evaluating a defendant's role in the
    criminal enterprise, the guidelines lay out seven factors to
    consider:
    [T]he exercise of decision making authority,
    the nature of participation in the commission
    of   the   offense,    the   recruitment   of
    - 45 -
    accomplices, the claimed right to a larger
    share of the fruits of the crime, the degree
    of participation in planning or organizing the
    offense, the nature and scope of the illegal
    activity, and the degree of control and
    authority exercised over others.
    USSG §3B1.1, cmt. n.4. "This list is intended to be representative
    rather than exhaustive[, and t]here need not be proof of each and
    every factor before a defendant can be termed an organizer or
    leader."     United States v. Tejada-Beltran, 
    50 F.3d 105
    , 111 (1st
    Cir. 1995).
    B
    We turn first to the drug-weight enhancement.           See USSG
    §2D1.1(c)(6).    Melendez asserts that the calculated cocaine weight
    of    4.2   kilograms    double-counted     certain    drug    quantities   by
    including the same cocaine when he purchased it and when he sold
    it.    See Lee, 
    892 F.3d at 493
     (recognizing "possibility of a
    reversible error due to . . . double counting").              In his view, the
    evidence    reasonably     reflected   only   the     following   amounts   of
    cocaine:     750 grams on March 14; 500 grams on April 12; 700 grams
    on April 27; 500 grams on May 6; 531 grams on May 16; and 307.7
    grams on May 25.        And if these amounts were the sole basis for an
    accurate estimate, the total drug quantity should have been 3,288.7
    grams (about a kilogram less than the amount for which the court
    sentenced him).
    - 46 -
    Melendez says that the 120 grams cooked into crack
    cocaine on March 24, the twenty-two grams transferred to Burgos on
    April 2, and the 400 grams sold to Richards on April 3 all came
    from the 750 grams that he had received from Cordova on March 14.
    In addition, he says that the 400 grams given to Richards on April
    22 were part of the 500 grams that he had received from Cordova on
    April 12.    This double counting, he maintains, was what elevated
    the total amount of drugs attributable to the conspiracy to exceed
    the 3.5-kilogram threshold needed to increase his base offense
    level by two levels.       See USSG §2D1.1(c)(6)-(7).
    Because a sentencing court's "drug-quantity calculation
    is a factual finding," our review is for clear error.         Kinsella,
    
    622 F.3d at 86
    .    And in the absence of direct evidence of the total
    quantity of drugs, the court may rely on a reasonable estimate of
    the total quantity.       See Bernier, 
    660 F.3d at 546
    .   Thus, "our job
    'is not to see whether there is any view of the evidence that might
    undercut the district court's finding; it is to see whether there
    is any evidence in the record to support the finding.'"       Kinsella,
    
    622 F.3d at 86
     (quoting United States v. Wade, 
    114 F.3d 103
    , 105
    (7th Cir. 1997)).
    We    start    with   the   April   22   transaction   and,
    specifically, the 400 grams that allegedly came out of the 500
    - 47 -
    grams    that   Melendez   had   procured   from    Cordova.6      Melendez's
    characterization of this transaction does not withstand scrutiny.
    Although Cordova may have been Melendez's primary supplier, he was
    not necessarily Melendez's sole supplier.             For example, in one
    recorded conversation, Melendez appeared to be sourcing cocaine
    from Rodriguez to sell to Richards.                Indeed, the government
    identified this conversation in the PSI Report, but Melendez
    objected to it only summarily below and never reckoned with it on
    appeal.     Melendez's communications also appear to discuss what
    could have been an additional cocaine purchase from Cordova on
    April 13.
    Given these facts, it is plausible that Melendez sold
    cocaine on April 22 that came from sources other than Cordova.             On
    this record, we cannot say that the district court clearly erred
    — let alone committed plain error — by concluding that the two
    scenarios involved different sources of cocaine.                See Kinsella,
    
    622 F.3d at 86
     ("[W]hen the record supports more than one estimate,
    the judge's selection 'from among plausible alternatives cannot be
    6 Although Melendez objected that the 500 grams attributed
    to him from the April 12 Cordova purchase involved double
    counting, the objection cited a paragraph of the PSI Report that
    discussed a transaction on April 3.     Because Melendez did not
    argue below that the April 22 Richards sale involved cocaine from
    the April 12 Cordova purchase, this claim of double counting is
    unpreserved, and our review is for plain error. See Duarte, 
    246 F.3d at 60
    .
    - 48 -
    clearly erroneous.'" (quoting United States v. Morillo, 
    8 F.3d 864
    , 871 (1st Cir. 1993))).
    That ends this aspect of the matter.         Even if Melendez
    prevailed on all his other claims, the total drug quantity would
    decrease only by 542 grams.           The total amount of cocaine would
    then become 3,658 grams — an amount that is still above the 3.5-
    kilogram threshold needed to bring into play a base offense level
    of twenty-eight.       See USSG §2D1.1(c)(6).      Accordingly, any error
    — if one occurred — would be harmless because it would not affect
    the total offense level.           See United States v. Rivera Calderón,
    
    578 F.3d 78
    , 105 (1st Cir. 2009) (holding that "error was harmless
    because the court's other findings were accurate and qualified
    [defendant] for the offense level assigned").
    C
    Melendez next asserts that the court clearly erred by
    imposing a four-level "organizer or leader" enhancement.7                 He
    contends that it was a mischaracterization to suggest that he had
    organized   or   led   a   "drug    trafficking   organization"   when   the
    evidence showed only that a small group, over a short period of
    7 Melendez also challenges an enhancement to his sentence for
    the robbery offense.    But he mounts that challenge only in a
    footnote and makes no developed argumentation in support of it.
    We thus deem the challenge waived. See United States v. Zannino,
    
    895 F.2d 1
    , 17 (1st Cir. 1990) (explaining that "issues adverted
    to in a perfunctory manner, unaccompanied by some effort at
    developed argumentation, are deemed waived").
    - 49 -
    time, occasionally collaborated to buy and sell relatively modest
    quantities of cocaine.8   He adds that the court failed to explain
    why Rodriguez did not receive the same enhancement when neither of
    the defendants had authority over the other and they maintained
    joint responsibility for any assets.   See United States v. Walker,
    
    89 F.4th 173
    , 186 (1st Cir. 2023) ("The lack of any explanation
    for the district court's decision gives us special pause here
    because it is not apparent from the record that the court performed
    the inquiry required by the . . . [g]uideline.").
    We agree that the evidence does not suffice to show that
    Melendez was the leader of the conspiracy.   The evidence, however,
    supports the conclusion that Melendez was an organizer of the
    conspiracy, and that the district court did not overstep its
    bounds by treating him as such.        Because one's status as an
    "organizer" is an inherently fact specific determination, our
    review of this finding is for clear error.    See Rostoff, 
    53 F.3d at 413
    .   One's status as an "organizer" depends on factors such
    as his exercise of decision-making authority; the nature of his
    8 This passing description of the events is the only possible
    reference that challenges the scope requirement. Thus, Melendez
    has waived any argument that the government has not satisfied this
    requirement. See United States v. Zannino, 
    895 F.2d 1
    , 17 (1st
    Cir. 1990) (explaining that "issues adverted to in a perfunctory
    manner, unaccompanied by some effort at developed argumentation,
    are deemed waived"). And in all events, the conspiracy clearly
    involved at least five participants (Melendez, Rodriguez, Mack,
    Jean, and Cordova), which would in itself be sufficient to satisfy
    the scope requirement. See Rivera, 51 F.4th at 51.
    - 50 -
    participation in the criminal activity; whether he recruited
    accomplices; whether he was entitled to more of the proceeds; to
    what extent he planned or organized the criminal activity; and
    how much control or authority he had over other participants.            See
    USSG §3B1.1, cmt. n.4.         Here, the facts plausibly support an
    inference that Melendez acted as an organizer.
    There is evidence that Melendez planned the criminal
    activity, structured the deals, received the proceeds, engaged in
    recruitment, and coordinated the activities of various henchmen.
    Although Melendez may have only arranged transactions with other
    associates — rather than supervise their activities — "[o]ne may
    be classified as an organizer, though perhaps not as a leader, if
    he coordinates others so as to facilitate the commission of
    criminal activity."       Tejada-Beltran, 
    50 F.3d at 112
    .
    To be sure, the government acknowledged that other
    participants played substantial roles in the conspiracy.                 For
    example,   Rodriguez's     residence   was   "the   hub    of   their   drug
    operation."      And his "role was to ensure the security of the
    assets"    and     "the     security   of    the    drugs       that    they
    [were] . . . acquiring and/or distributing."              Moreover, it is
    apparent that Melendez had no authority over Cordova or Richards.
    Cordova independently contacted Melendez when he had cocaine to
    sell, and Richards independently contacted Melendez when he wished
    - 51 -
    to purchase cocaine (although Melendez on occasion would advise
    Richards when he had cocaine available for sale).
    Even so, Melendez's argument overstates the authority
    over an operation that the guidelines require in order to ground
    "organizer" status.   Although Rodriguez also played a significant
    role in the conspiracy, "a defendant need not exercise complete
    hegemony over the entire criminal enterprise in order to qualify
    as an organizer."   United States v. Ilarraza, 
    963 F.3d 1
    , 14 (1st
    Cir. 2020).    After all, "more than one person [can] qualif[y] as
    a leader or organizer of a criminal association or conspiracy."
    USSG §3B1.1, cmt. n.4; see Ilarraza, 963 F.3d at 14.        Because
    these facts adequately buttress the district court's application
    of the enhancement, we reject Melendez's claim of error.
    VI
    We need go no further. For the reasons elucidated above,
    the judgment of the district court is
    Affirmed.
    - 52 -
    

Document Info

Docket Number: 23-1256

Filed Date: 8/23/2024

Precedential Status: Precedential

Modified Date: 8/23/2024