United States v. Cruz-Ramos ( 2021 )


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  •           United States Court of Appeals
    For the First Circuit
    No. 18-1569
    UNITED STATES OF AMERICA,
    Appellee,
    v.
    ISMAEL E. CRUZ-RAMOS,
    Defendant, Appellant.
    APPEAL FROM THE UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF PUERTO RICO
    [Hon. William E. Smith, U.S. District Judge]
    [Hon. Aida M. Delgado-Colón, U.S. District Judge]
    Before
    Howard, Chief Judge,
    Thompson and Kayatta, Circuit Judges.
    Ruth M. Liebesman, for appellant.
    Francisco A. Besosa-Martínez, Assistant United States
    Attorney, with whom W. Stephen Muldrow, United States Attorney,
    and Mariana E. Bauzá-Almonte, Assistant United States Attorney,
    Chief, Appellate Division, were on brief, for appellee.
    January 27, 2021
    THOMPSON, Circuit Judge.
    OVERVIEW
    We deal again with fallout from a bloody war between two
    Puerto Rico-based gangs known to all involved as La ONU and La
    Rompe.1     Today's appeal — a sequel to Ramírez-Rivera — focuses on
    Ismael Cruz-Ramos, an accused La ONU leader indicted and convicted
    of committing (or aiding and abetting others in committing) the
    crimes of:      RICO conspiracy, count 1; drug conspiracy, count 2;
    conspiracy     to   possess   firearms   in   furtherance   of   the   drug
    conspiracy, count 3; VICAR murder of a La Rompe boss nicknamed
    "Pekeke," count 29; and using and carrying a firearm in relation
    to Pekeke's murder, count 30.2       Last time around, we vacated his
    convictions because the police lacked probable cause to search his
    house — and so held that the evidence seized had to be suppressed.
    See 800 F.3d at 31-34.        Back in the district court, Cruz-Ramos
    convinced the judge to suppress some incriminating statements as
    well.      But a jury again convicted him of the relevant charges.
    1 Interested readers can find some of our other writings on
    this   subject at United States v. Rodríguez-Torres, 
    939 F.3d 16
    (1st   Cir. 2019); United States v. Laureano-Salgado, 
    933 F.3d 20
    (1st   Cir. 2019); United States v. Rivera-Carrasquillo, 
    933 F.3d 33
    (1st   Cir. 2019); and United States v. Ramírez-Rivera, 
    800 F.3d 1
    (1st   Cir. 2015).
    For the uninitiated, RICO is the standard acronym for the
    2
    Racketeering Influenced and Corrupt Organizations Act and VICAR is
    the accepted acronym for the Violent Crimes in Aid of Racketeering
    Act.
    - 2 -
    And after losing a motion for acquittal or new trial and getting
    sentenced to life plus 25 years, he filed the present appeal.3
    This time, however (after noting only what is necessary for
    resolving his current set of issues, ranging from claimed trial
    problems to supposed sentencing glitches), we leave him as we found
    him.4
    ALLEGED TRIAL ERRORS
    Cruz-Ramos mounts several arguments either for judgments
    of acquittal or for a new trial.
    Convinced that the judge erred in denying his acquittal
    motion, Cruz-Ramos claims that four out of the five convictions
    failed on evidentiary-insufficiency grounds:               the RICO-conspiracy
    conviction (count 1), because the evidence supposedly did not show
    that        La   ONU   ran   as   a   continuous   unit;   the   drug-conspiracy
    conviction (count 2), because the evidence allegedly did not prove
    that he belonged to a La ONU-owned drug point at a public-housing
    Judge William E. Smith (of the District of Rhode Island,
    3
    sitting by designation) handled the trial.   And Judge Aida M.
    Delgado-Colón (of the District of Puerto Rico) handled the
    sentencing.
    A quick heads up: The standard of review varies with the
    4
    issues and whether Cruz-Ramos preserved them in the district court.
    Helpfully, the parties agree on (or at least do not openly argue
    over) which claims he did and did not preserve below. And we see
    no reason to quarrel with them.      See, e.g., United States v.
    Sabean, 
    885 F.3d 27
    , 44 (1st Cir. 2018) (taking a similar approach
    in a similar situation).
    - 3 -
    project; the firearms-conspiracy conviction (count 3), because the
    evidence purportedly did not show that he possessed La ONU-owned
    guns; and the VICAR-murder conviction (count 29), because the
    evidence allegedly did not prove that he played a role in Pekeke's
    killing.5
    Shifting gears, Cruz-Ramos criticizes the judge for not
    giving the jurors a multiple-conspiracy instruction, seeing how he
    thinks the evidence did not connect the drug points to one another
    and so did not establish the single drug conspiracy alleged in the
    indictment.    He also criticizes the judge for not telling the
    jurors that the government had to prove his "advance knowledge"
    that a partner   would possess a real gun in furtherance of a drug-
    trafficking scheme, the advance-knowledge language coming from
    Rosemond v. United States, 
    572 U.S. 65
     (2014).
    Cruz-Ramos last argues that he at least deserves a new
    trial on all counts, because the judge wrongly admitted evidence
    concerning his harboring a fugitive.    As he sees it, that evidence
    — involving both a plea agreement in which he pled guilty to
    5 Cruz-Ramos does not attack the evidentiary sufficiency of
    his conviction for using and carrying a firearm in relation to
    Pekeke's murder (count 30). So he has waived any argument he might
    have. See, e.g., Rodríguez v. Municipality of San Juan, 
    659 F.3d 168
    , 175 (1st Cir. 2011). And to the extent he thinks his brief
    does make that attack, it is waived for lack of development. See
    
    id.
     (noting that arguments mentioned but not developed are waived).
    - 4 -
    harboring    a    fugitive    and      the    fugitive's       offense     conduct    —
    constituted "fruits" of searches held illegal in our earlier
    opinion,    lacked    relevance,        and    posed     a   high   risk    of   undue
    prejudice.       All of which means — in his mind anyway — that the
    judge should have granted his new-trial motion.
    Like the government, we find these arguments wanting.
    Acquittal
    We    take   a   de    novo      look   at   Cruz-Ramos's       preserved
    sufficiency claims, studying the record in the light most pleasing
    to the prosecution, giving the prosecution the benefit of all
    sensible inferences and credibility choices as well — and rejecting
    his challenges if any rational jury could have convicted him when
    viewing all the evidence (direct and circumstantial) in this way.
    See, e.g., Rodríguez-Torres, 939 F.3d at 23; United States v.
    Manor, 
    633 F.3d 11
    , 13-14 (1st Cir. 2011).                     That he may have a
    reasonable theory of innocence will not move the needle, because
    the issue is not whether a rational jury could have acquitted but
    whether it rationally could have found guilt beyond a reasonable
    doubt.   See, e.g., Manor, 
    633 F.3d at 14
    .
    Rico Conspiracy
    Getting a grip on RICO's intricacies is no easy matter.
    But generally, the statute criminalizes engaging in a pattern of
    racketeering       activity       as      part      of   "an     enterprise,"        or
    - 5 -
    "conspir[ing]" to do the same.                See 
    18 U.S.C. § 1962
    (c), (d).             An
    enterprise includes not only a legal entity like a "corporation"
    but also "any union or group of individuals associated in fact."
    United States v. Turkette, 
    452 U.S. 576
    , 579 n.2 (1981) (quoting
    
    18 U.S.C. § 1961
    (4)).       And   while    "the      very   concept    of   an
    association in fact is expansive," such an entity must have "at
    least" these "structural features":                  a "purpose," "relationships
    among     those    associated        with    the    enterprise,"       and    "longevity
    sufficient to permit these associates to pursue the enterprise's
    purpose."      Boyle v. United States, 
    556 U.S. 938
    , 944, 946 (2009).
    So   an    association-in-fact             entity    can   be    either      "formal   or
    informal,"        as    long    as   the     enterprise's       "various     associates
    function as a continuing unit."                Turkette, 
    452 U.S. at 583
    .              But
    that enterprise need not have a "hierarchical structure or a 'chain
    of command'" and no purpose beyond carrying out a pattern of
    racketeering acts.             See Boyle, 
    556 U.S. at 946-48
    .
    Cruz-Ramos's sole complaint is that prosecutors produced
    inadequate proof "of an organization that worked as an ongoing
    unit" (so framed, his argument eliminates any need to discuss
    RICO's other elements).              But the claim is hopeless when one reads
    the record the right way — afresh, and in the light most agreeable
    to the government.
    - 6 -
    Cooperating witnesses fingered Cruz-Ramos as a La ONU
    leader, a firearms supplier, and a heroin drug-point owner at Las
    Gladiolas, a La ONU-dominated public-housing project.                  And they
    did much more than that.       They also chronicled La ONU's roughly
    decade-long work as a union of various housing-project gangs, with
    the unifying goals being running more drug points and taking down
    common enemies like La Rompe — using deadly violence whenever
    needed.   Identifiable by its name — the "ONU" in La ONU "stands
    for Organización de Narcotraficantes Unidos," which in English
    means "Organization of United Drug Traffickers," see Rodríguez-
    Torres, 939 F.3d at 25 (emphasis added) — this mega-gang used
    special hand signals to differentiate its members from other
    members; made and enforced strict rules of conduct (e.g., no
    fraternizing with La Rompe gangbangers or cooperating with the
    police, on pain of death); and required associates at different La
    ONU-controlled    drug    points   to     share     resources   (guns,   drugs,
    manpower, etc.) in its bid to be the biggest and baddest crime
    syndicate around.        And while not necessary (courtesy of Boyle,
    which held that an association-in-fact enterprise need have no
    formal hierarchy or decision-making mechanism), La ONU had —
    throughout its many years of operation — a main leader (though
    members   close   to   him   had   a    say    in   important   gang   matters,
    apparently), drug-point owners, enforcers, sellers, and lookouts.
    - 7 -
    That is ample evidence of La ONU's functioning as a continuous
    unit, despite what Cruz-Ramos says.           See, e.g., Rodríguez-Torres,
    939 F.3d at 24-25 (finding similar evidence sufficient).
    Drug Conspiracy
    A   series     of    statutes     criminalize    conspiring      to
    distribute drugs within a 1,000 feet of a public-housing facility.
    See 
    21 U.S.C. §§ 841
    (a), 846, 860.           With that in mind, we need not
    linger long over Cruz-Ramos's claim that no evidence showed that
    he "belonged [in a] group operating" in a La ONU-dominated public-
    housing project.        After all, cooperators testified that he owned
    a heroin drug point at the La ONU-run Las Gladiolas public-housing
    facility.   Calling the cooperators' statements too speculative, he
    implies that the jury should not have believed them.                 But his
    argument goes to credibility, something we cannot consider in
    reviewing this challenge.6        See, e.g., Manor, 
    633 F.3d at 14
    .
    Firearms Conspiracy
    Also    unpersuasive     is   Cruz-Ramos's      claim   that    the
    firearms-conspiracy conviction cannot stand, because no evidence
    proved   that      he   "possessed   weapons     in   furtherance    of    drug
    6 Cruz-Ramos also hints at an argument that prosecutors
    offered insufficient evidence about the existence or amount of
    "heroin that was sold."   But that argument cannot win the day
    either, given the testimony about his having run a heroin drug
    point.
    - 8 -
    trafficking."     The "in furtherance of" element here requires "[a]
    showing [of] a sufficient nexus between the firearm and the drug
    crime [or crime of violence] such that the firearm advances or
    promotes the drug crime [or crime of violence]."     Ramírez-Rivera,
    800 F.3d at 23 (quoting United States v. Gurka, 
    605 F.3d 40
    , 44
    (1st Cir. 2010), and discussing 
    18 U.S.C. §§ 924
    (c)(1)(A), 924(o))
    (alteration in original).     And undercutting Cruz-Ramos's argument
    is evidence showing both that he "[a]lways" carried automatic
    weapons with him as he ran his drug point and that he gave his La
    ONU associates guns — all to protect and expand the gang's drug
    turf.
    Perhaps     anticipating   that   we   might   reach   this
    conclusion, Cruz-Ramos tries to downplay the evidence, labeling it
    nothing more than "a generic assertion" that he "was an enforcer."
    But a glance at the testimony of one cooperator is sufficient to
    refute the claim, for he not only identified Cruz-Ramos as an
    enforcer but specifically described how he and Cruz-Ramos — often
    with others, and always armed to the teeth with assault rifles and
    the like — went "to other housing projects" multiple times "to
    shoot them up."
    In something of a last stand here, Cruz-Ramos faults
    prosecutors for not linking him to any of the guns presented at
    trial.   But even if he did not own those guns, the jury heard
    - 9 -
    testimony that he carried guns and gave them to his La ONU allies
    — with the goal being to further the gang's drug interests.                      So
    this argument is not a difference-maker.                  See 
    id.
     (rejecting a
    similar argument on similar grounds).
    VICAR Murder
    As   relevant        to    Cruz-Ramos's      case,     VICAR    outlaws
    "attempting or conspiring to commit murder" for "the purpose of
    . . . maintaining or increasing position in an enterprise engaged
    in racketeering activity."              See 
    18 U.S.C. § 1959
    (a)(5).            Cruz-
    Ramos     contests   his    VICAR      conviction   for    aiding    and    abetting
    Pekeke's murder (remember that Pekeke was a La Rompe leader),
    alleging that no evidence "connect[ed]" him to that crime.                     He is
    wrong.
    Viewing the record in the light most sympathetic to the
    government's case (as required), we see evidence of the following
    —   all   supporting       the    aiding-and-abetting      theory     behind    this
    conviction.       Cruz-Ramos attended a meeting where La ONU leaders
    kicked around ideas on how to off Pekeke.              Ultimately, they agreed
    to pay a person named "Joshua" to gun Pekeke down at a La Rompe-
    dominated public-housing project and then send a rescue crew in to
    get Joshua out.      Cruz-Ramos gave the crew a fake license plate and
    registration sticker to put on a rescue car (to hide the fact that
    the car was stolen).             And after the shooting, rescuers went to
    - 10 -
    Joshua's aid — all armed, including Cruz-Ramos, who drove his own
    SUV.
    An   undaunted      Cruz-Ramos       notes   that    cooperator      José
    Gutiérrez-Santana did not name him as a planning member attendee
    or as a rescuer.       But cooperator Wesley Figueroa-Cancel did both.
    And the jurors could decide "which witness to credit," with us
    required to assume, "in the posture of a sufficiency-of-the-
    evidence challenge, . . . that they credited those witnesses whose
    testimony lent support to the verdict." See United States v. Lara,
    
    181 F.3d 183
    , 204 (1st Cir. 1999).
    Cruz-Ramos also notes that cooperators never said that
    he knew why rescuers needed "a vehicle and plate."                   But the jurors
    could reasonably infer from his rescue-mission participation that
    he knew what those items were for.              See Rodríguez-Torres, 939 F.3d
    at   23   (reminding    us   to    make   all    natural      inferences   "in   the
    government's favor" when considering a sufficiency-of-the-evidence
    claim).
    Pulling out all the stops, Cruz-Ramos says that the
    "government's     scientists       contradicted"        the   cooperators.        For
    example, he claims (with no record cites) that cooperators said
    "Joshua . . . was shot as he ran from the project, but no blood
    trail or trace was found"; that "[n]o police report or medical
    record    suggests     Joshua     was   shot";    and    that   an   "investigator
    - 11 -
    observed no evidence of the crime in front of the project or the
    road leading to it, contradicting the theory of a shooting in front
    of" the project.   As touched on above, the usual rule is that
    "[s]ifting through conflicting testimony and determining where the
    truth lies is the sort of work that falls squarely within the
    jury's province," not ours.    See United States v. Nascimento, 
    491 F.3d 25
    , 46 (1st Cir. 2007).   And Cruz-Ramos gives us no reason to
    vary from that rule (like showing that each cooperator's testimony
    was so implausible that we cannot trust it as a matter of law).
    So this line of argument is a dead end too.
    With the sufficiency issues out of the way, we examine
    Cruz-Ramos's claims of instructional error.
    Jury Instructions
    Cruz-Ramos's preserved claim about the missing multiple-
    conspiracies instruction gets abuse-of-discretion review, with us
    reversing only if he can show "he suffered substantial prejudice."
    See United States v. Camacho-Santiago, 
    851 F.3d 81
    , 85 (1st Cir.
    2017); see also United States v. Brandon, 
    17 F.3d 409
    , 450 (1st
    Cir. 1994) (elaborating that in the alleged multiple-conspiracies
    setting, "[t]he prejudice we must guard against" is the prejudicial
    spillover of evidence "resulting from trying defendants en masse
    for distinct and separate offenses committed by others").   And his
    unpreserved claim about the missing advance-knowledge instruction
    - 12 -
    gets plain-error review, see United States v. Paniagua-Ramos, 
    251 F.3d 242
    , 246 (1st Cir. 2001), with him having to make the
    difficult showing that the judge erred and clearly so, and that
    the error also affected his substantial rights — but even then we
    can still affirm if he does not show as well that the error
    seriously harmed the fairness, integrity, or public perception of
    his trial, see United States v. Takesian, 
    945 F.3d 553
    , 563 (1st
    Cir. 2019); see also United States v. Dominguez Benitez, 
    542 U.S. 74
    , 83 n.9 (2004) (noting that satisfying each facet of the plain-
    error test is a daunting task, "as it should be"); Paniagua-Ramos,
    
    251 F.3d at 246
     (stressing that "the plain error hurdle, high in
    all events, nowhere looms larger than in the context of alleged
    instructional errors").
    Multiple Conspiracies
    Sometimes the simplest approach is the best approach.
    See, e.g., United States v. Tsarnaev, 
    968 F.3d 24
    , 78 (1st Cir.
    2020) (explaining that "[o]ften '[t]he simplest way' to decide an
    issue is 'the best'" (first alteration added) (quoting Stor/Gard,
    Inc. v. Strathmore Ins. Co., 
    717 F.3d 242
    , 248 (1st Cir. 2013)).
    So it is here. Even assuming — without granting — that the evidence
    justified a multiple-conspiracies instruction, its omission did
    not substantially prejudice Cruz-Ramos. And that is because, while
    Cruz-Ramos may not have gotten the exact instruction that he
    - 13 -
    wanted, the judge did tell the jurors that the government had to
    prove that he (Cruz-Ramos) was part of the charged drug conspiracy.
    "[Y]ou must be convinced," the judge said, "that the government
    has proven beyond a reasonable doubt" that the conspiratorial
    "agreement      specified   in    the   indictment,      and   not    some   other
    agreement or agreements, existed between at least two people to
    possess with the intent to distribute a controlled substance" and
    that Cruz-Ramos "willingly joined that agreement." And "[i]f . . .
    you [have] a reasonable doubt," the judge added, then "you must"
    acquit.   Quite a number of our cases have found instructions of
    this sort sufficient to protect a defendant from prejudice in
    circumstances like Cruz-Ramos's.           See United States v. Belanger,
    
    890 F.3d 13
    , 33 (1st Cir. 2018) (collecting authority); see also
    Camacho-Santiago, 851 F.3d at 87.                And Cruz-Ramos offers no
    plausible reason why those cases should not control here.
    Advance Knowledge
    Citing     Rosemond,     Cruz-Ramos        argues   that   the    judge
    slipped by not telling the jurors that, to find him guilty of
    aiding and abetting possession of a gun in furtherance of a drug
    crime   (what    a   mouthful),    they   had    to    find    he   had   "advance
    knowledge" that a gun would be used.            See 572 U.S. at 77-81.        And,
    the theory goes, because of that lack of instruction, the jurors
    could have convicted him merely because he intended to help commit
    - 14 -
    the underlying drug-trafficking crime — without ever finding that
    he had prior knowledge that a compatriot would possess a gun.
    Rosemond addressed aiding-and-abetting liability for the
    "compound" offense of using or carrying a firearm while committing
    certain violent or drug-related crimes.    See 572 U.S. at 67-68, 71
    (analyzing 
    18 U.S.C. § 924
    (c)(1)(A)).      "[I]ntent must go to the
    specific and entire crime charged," Rosemond said, "the full scope
    (predicate crime plus gun use) of § 924(c)."      Id. at 76.    So an
    accused aider and abettor must have had "advance knowledge" that
    a cohort would "use or carry a gun during [its] commission,"
    because he must have decided "to align himself with the illegal
    scheme in its entirety — including its use of a firearm."       Id. at
    67; see generally United States v. Fernández-Jorge, 
    894 F.3d 36
    ,
    52-55 (1st Cir. 2018) (finding Rosemond error in a nonplain-error
    case, because the aiding-and-abetting instruction let the jury
    convict even if the defendant intended only the general "endeavor"
    to succeed, rather than the firearm-specific crime).
    Cruz-Ramos concedes that he did not raise this Rosemond
    issue at trial.     Which means he must run the usually lethal
    gauntlet of plain-error review — i.e., (and to repeat) he must
    show not only error, but error that is obvious, affects his
    substantial   rights,   and   seriously   undermined   the   fairness,
    integrity, or public perception of the judicial process.           See
    - 15 -
    generally United States v. Manso-Cepeda, 
    810 F.3d 846
    , 852 n.7
    (1st Cir. 2016) (stating that "the First Circuit already had an
    advance knowledge requirement for aiding and abetting convictions"
    before   Rosemond       and   "has    consistently      used    the    'consciously
    shared' formulation to describe our aiding and abetting law,"
    making   "an    error    in   which    the    district     court      used    a   well-
    established      formulation     . . .       unlikely    to    qualify       as   plain
    error"). But Cruz-Ramos makes no attempt to show how his Rosemond-
    based claim satisfies the demanding plain-error standard — his
    brief fails to even mention plain error, let alone argue for its
    application here.         See generally Fed. R. App. P. 28(a)(8)(A)
    (announcing      that   "[t]he   appellant's       brief      must    contain"     the
    "appellant's contentions and the reasons for them, with citations
    to the authorities and parts of the record on which the appellant
    relies").      And knowing that it is not on us to construct a party's
    arguments for him, see United States v. Charriez-Rolón, 
    923 F.3d 45
    , 52 (1st Cir. 2019), that failure waives this claim, see United
    States v. Velázquez-Aponte, 
    940 F.3d 785
    , 800 (1st Cir. 2019);
    United States v. Severino-Pacheco, 
    911 F.3d 14
    , 20 (1st Cir. 2018);
    United States v. Pabon, 
    819 F.3d 26
    , 33-34 (1st Cir. 2016).7
    7 One other jury-instruction claim requires brief attention.
    The government premised the VICAR-murder charge on an aiding-and-
    abetting theory under Puerto Rico law. But Cruz-Ramos says that
    the judge gaffed the aiding-and-abetting instructions, arguing
    that Puerto Rico did not recognize aiding and abetting murder as
    - 16 -
    Enough said about these issues.
    New Trial
    We inspect Cruz-Ramos's problem with the judge's new-
    trial denial for abuse of discretion, knowing that an abuse of
    discretion exists "only when no reasonable person could agree with
    the judge's decision," see Laureano-Salgado, 933 F.3d at 29, that
    a material error of law is by definition an abuse of discretion,
    see United States v. Carpenter, 
    736 F.3d 619
    , 629 (1st Cir. 2013),
    and that we ordinarily overturn a new-trial denial only to prevent
    a crime "at the time of the offense."     Looking to counter this
    claim, the government cites a decades-old opinion by Puerto Rico's
    highest court (issued well before his crimes went down) — an
    opinion stating that Puerto Rico's penal code "not only considers
    as principals or authors those who directly commit the punishable
    offense, but those as well who aid in the commission thereof."
    People v. Martés Olán, 
    3 P.R. Offic. Trans. 488
    , 492 (P.R. 1975)
    (quoting People v. Vélez, 
    36 P.R.R. 521
    , 523-24 (P.R. 1927))
    (emphasis added). Our Ramírez-Rivera opinion read Puerto Rico law
    as punishing a person as a principal if he "'participates directly
    in the commission of a crime,' 'forces, provokes, abets or induces
    another person to commit a crime,' or 'cooperates before,
    simultaneously or after the commission of a crime, and without
    whose participation the crime could not have been perpetrated.'"
    800 F.3d at 22 n.16 (quoting 
    P.R. Laws Ann. tit. 33, §§ 4671
    (a),
    (b), (d)) (emphasis added). And with Ramírez-Rivera on the books,
    Cruz-Ramos writes that he raises this issue simply to preserve his
    right to petition for en banc or Supreme Court review based on his
    belief that the quoted English translation misconstrues the word
    "instigar" in the original Spanish to include "abet."      But see
    University    of     Cambridge,    Spanish-English     Dictionary,
    http://dictionary.cambridge.org/dictionary/spanish-english,
    "instigar". So we need say no more on that subject.
    - 17 -
    a miscarriage of justice, see United States v. Ackerly, 
    981 F.3d 70
    , 75 (1st Cir. 2020).
    To understand Cruz-Ramos's claim, we must provide some
    necessary context.
    According to the evidence admitted at trial, a La ONU
    member named "Bernard" shot down a police helicopter to help
    himself and other La ONU-ers avoid arrest.    One of the pilots died.
    And Bernard fled to Cruz-Ramos's house.       Acting on a tip, the
    police went there and searched the place without a warrant, seizing
    guns and drugs — a search we stamped unconstitutional in Ramírez-
    Rivera.   The police arrested Cruz-Ramos and Bernard.    About three
    months later, Cruz-Ramos pled guilty under a plea agreement to
    harboring a fugitive.     In a document attached to the agreement,
    Cruz-Ramos admitted certain facts — including that the police
    wanted Bernard for the helicopter shooting.    And over Cruz-Ramos's
    objections, the judge in our case allowed the plea agreement and
    accompanying statement of facts into evidence.
    With this backdrop in place, we now consider Cruz-
    Ramos's arguments.
    As for Cruz-Ramos's lead claim — that the judge should
    have excluded as fruit of an illegal search all evidence about his
    harboring-a-fugitive    plea    agreement,    which   included   his
    concessions concerning Bernard's crime — the factors that go into
    - 18 -
    this issue are:   (a) the voluntariness of his concessions, (b) the
    temporal proximity of the illegal conduct and the concessions,
    (c) the existence of intervening events, and (d) the flagrancy of
    the illegality.   See, e.g., Brown v. Illinois, 
    422 U.S. 590
    , 603-
    04 (1975); United States v. Stark, 
    499 F.3d 72
    , 76 (1st Cir. 2007)
    (discussing the Brown factors). No single factor is determinative,
    however.   See Brown, 
    422 U.S. at 603
    .
    Because no one doubts that Cruz-Ramos voluntarily signed
    the plea agreement (factor (a)), and the government concedes for
    present purposes that the police acted egregiously (factor (d)),8
    the dispute here is really over factors (b) and (c).     And so we
    turn to them.
    Cruz-Ramos signed the plea agreement three months after
    the illegal search (factor (b)) — far more than the two days
    between an illegal search and a confession in another case that we
    said "counsel[ed] against suppression."    See Stark, 
    499 F.3d at 76
    .   And during those intervening months, he had time to reflect
    on his situation and consult with a lawyer before signing the plea
    agreement (factor (c)) — an agreement, by the way, that he has
    never tried to invalidate as a product of the illegal search.
    8 We ourselves called the search an "egregious Fourth
    Amendment violation" and said "the officers' disregard of probable
    cause was certainly deliberate." See Ramírez-Rivera, 800 F.3d at
    32, 33.
    - 19 -
    Given these particulars — and mindful that evidence exclusion
    should be a "last resort" rather than a "first impulse," see Hudson
    v. Michigan, 
    547 U.S. 586
    , 591 (2006) — we think that the causal
    link between the illegality and the plea agreement is so stretched
    that the illegality did not infect the plea agreement, see Brown,
    
    422 U.S. at 598
     (emphasizing that a confession caused by unlawfully
    seized   evidence   need   not   be   suppressed   if   "an   intervening
    independent act of free will . . . purge[s] the primary taint" of
    the illegal search (quoting Wong Sun v. United States, 
    371 U.S. 471
    , 486 (1963)); see generally United States v. Davis, 
    617 F.2d 677
    , 687-89 (D.C. Cir. 1979) (refusing to suppress a defendant's
    grand-jury testimony (provided as part of his plea agreement) given
    weeks after an illegal arrest when he had "time to consult with
    counsel and to reflect on his decision to cooperate," because
    "[t]he taint of the . . . illegality had dissipated by the time
    [he] took the witness stand").9
    9 Joining belt with suspenders, we add that as the party
    invoking the exclusionary rule — a judicially crafted remedy, aimed
    at curbing police misconduct by (broadly speaking) barring
    prosecutors from introducing at the defendant's trial evidence
    obtained through the misconduct — Cruz-Ramos must show not only
    causation, but also that the rule's benefits (deterrence) outweigh
    its costs (e.g., excluding relevant evidence and perhaps letting
    a guilty person go free). See Herring v. United States, 
    555 U.S. 135
    , 140-41 (2009); Hudson, 
    547 U.S. at 591
    .        Yet his brief
    contains no such weighing analysis, creating a gaping hole that
    also sinks this aspect of his new-trial claim.
    - 20 -
    We are likewise unmoved by Cruz-Ramos's next set of
    claims — that the judge should have excluded evidence about the
    helicopter downing and his fugitive harboring as irrelevant and
    unfairly prejudicial.   And it will not take us long to explain
    why.
    Relevancy is a very low threshold, requiring only that
    the evidence have "any tendency to make a fact more or less
    probable."   See Fed. R. Evid. 401 (emphasis added); see also
    Bielunas v. F/V Misty Dawn, Inc., 
    621 F.3d 72
    , 76 (1st Cir. 2010).
    And "the evidence need not definitively resolve a key issue in the
    case," but rather "need only move the inquiry forward to some
    degree," see Bielunas, 621 F.3d at 76 — think, for example, of
    evidence that is basically "background in nature," which "is
    universally offered and admitted as an aid to understanding," see
    Fed. R. Evid. 401 advisory committee's notes.
    So it is no exaggeration to say that "[a] relevancy-
    based argument is usually a tough sell."   See Bielunas, 621 F.3d
    at 76.   And Cruz-Ramos fails to make the sale here.
    The indictment charged the helicopter-shooting murder as
    an overt act in furtherance of the RICO conspiracy.    And "when the
    scope of a RICO conspiracy includes murder as a tool to further
    the enterprise, a 'murder [is] still relevant to the RICO count[]
    as it tend[s] to prove the existence and nature of the RICO
    - 21 -
    enterprise and conspiracy,'" even if the defendant on trial is
    "not charged for that particular killing."                    See Ramírez-Rivera,
    800 F.3d at 44 (second and third alterations added) (quoting United
    States v. DeCologero, 
    530 F.3d 36
    , 54 (1st Cir. 2008)). Attempting
    to   elude      Ramírez-Rivera's      grasp,     Cruz-Ramos     writes   that   the
    Ramírez-Rivera panel "was addressing" a different murder — "the
    Pep Boys murder."10           But nothing in Ramírez-Rivera limits this
    principle only to the Pep Boys murder.
    The indictment also listed several "means and methods by
    which"     La     ONU    members    "conducted    and   participated"      in   the
    enterprise's        "affairs,"      including     "provid[ing]      shelter     and
    protection to known fugitive members of La ONU in order to aid
    against their apprehension by law enforcement."                  And Cruz-Ramos's
    harboring-a-fugitive plea agreement helped bolster that charge,
    making     the     agreement       relevant    under    our    modest    relevancy
    requirements.           See Polanco, 634 F.3d at 44 (noting how relevancy
    is usually an easy hurdle to clear); see generally United States
    v. Rodríguez-Soler, 
    773 F.3d 289
    , 293-94 (1st Cir. 2014) (stating
    that because convictions frequently "result from the cumulation of
    bits of proof which, taken singly, would not be enough in the mind
    The Pep Boys murder "involved the death of a La Rompe boss,
    10
    killed on the orders of two La ONU leaders." Rivera-Carrasquillo,
    933 F.3d at 45 n.11 (citing Ramírez-Rivera, 800 F.3d at 44).
    - 22 -
    of a fair minded person," a key factor in a relevancy determination
    is whether "each bit [has] enough rational connection with the
    issue to be considered a factor contributing to an answer" (quoting
    United States v. Pugliese, 
    153 F.2d 497
    , 500 (2d Cir. 1945) (L.
    Hand, J.))).
    A judge of course "may" exclude relevant evidence if
    (roughly    speaking)      it    is   "unfair[ly]        prejudic[ial]"      to    the
    defendant or risks confusing the jury, among other things.                         See
    Fed. R. Evid. 403.         Seizing on this language, Cruz-Ramos argues
    that the challenged evidence packed too much of an emotional punch,
    prejudicing    the   jurors      against    him    and    causing     them   to   act
    irrationally.        The   law    bans     not    all    prejudice,    but    unfair
    prejudice.     See, e.g., Rodríguez-Soler, 773 F.3d at 296.                  And it
    does not save a defendant from damaging evidence generally.                       See,
    e.g., id.      Ultimately, "[g]iven the nature of this violence-
    infested case, we see no reason why testimony about an additional
    murder would cause the jury an improper emotional reaction."                       See
    Ramírez-Rivera, 800 F.3d at 44.
    Cruz-Ramos      makes     a   single-sentence       suggestion        that
    jurors "could have been confused by" his harboring "confession,"
    without offering any authority or meaningful discussion of the
    issue.     So he waived it by inadequately briefing it.                 See, e.g.,
    Muñiz v. Rovira, 
    373 F.3d 1
    , 8 (1st Cir. 2004) (holding waived a
    - 23 -
    perfunctory claim unaccompanied by "citation to any pertinent
    authority"); United States v. Zannino, 
    895 F.2d 1
    , 17 (1st Cir.
    1990) (declaring it "not enough to merely to mention a possible
    argument   in   the   most   skeletal    way,   leaving    the   court   to   do
    counsel's work").
    Cruz-Ramos also implies that his plea agreement presents
    a hearsay problem.     But during the trial he agreed with the judge
    that the rule against hearsay posed no obstacle to admission. That
    aside, his brief "provides neither the necessary caselaw nor
    reasoned analysis to show" that his hearsay intimation is correct.
    See Rodríguez, 
    659 F.3d at 176
    .         And again, such cursory treatment
    is not enough to preserve an issue for review.             See, e.g., 
    id.
    Making a last-ditch bid to save this claim, Cruz-Ramos
    writes that because "[t]he helicopter murder was excluded by the
    district court during the first trial," the judge should have done
    the same in the second.        But he makes this argument only in his
    reply brief and so waived that one as well.               See, e.g., Liberty
    Mut. Ins. Co. v. Nippon Sanso K.K., 
    331 F.3d 153
    , 162 (1st Cir.
    2003) (holding that an "argument . . . not made in the opening
    brief but only in the reply . . . is waived").
    On to sentencing.
    - 24 -
    ALLEGED SENTENCING ERRORS
    Cruz-Ramos claims that the judge made three procedural
    sentencing errors — first by imposing a 2-level enhancement for
    his   having   played   a   leadership   role   in   the   crimes,   next   by
    assessing 2 criminal history points against him for his prior
    conviction for harboring a fugitive, and finally by having a 25-
    year sentence on the count of using and carrying a firearm in
    relation to Pekeke's murder run consecutively to the life sentences
    on the other counts.11       We review preserved challenges for abuse
    of discretion and unpreserved ones for plain error, see, e.g.,
    United States v. Garay-Sierra, 
    832 F.3d 64
    , 67 (1st Cir. 2016) —
    A quick crib sheet on how federal sentencing works: Using
    11
    advisory sentencing guidelines, the judge figures out the
    defendant's
    base offense level — i.e., a point score for a specified
    offense or group of offenses. The [judge] then make[s]
    adjustments for any aggravating or mitigating factors in
    the defendant's case, thus arriving at a total offense
    level. The [judge] also assign[s] points based on the
    defendant's criminal history — points that get converted
    into various criminal history categories, designated by
    Roman numerals I through VI. Armed with this info, the
    judge turns to the guidelines's sentencing table. And
    by plotting the defendant's total offense level along
    the table's vertical axis and his criminal history
    category along the table's horizontal axis, the judge
    ends up with an advisory prison range. From there, the
    judge sees if any departures are called for, considers
    various sentencing factors, and determines what sentence
    (whether within, above, or below the suggested range)
    seems appropriate.
    United States v. Martínez-Benítez, 
    914 F.3d 1
    , 2 n.2 (1st
    Cir. 2019) (citations omitted).
    - 25 -
    as a reminder, the hard-to-satisfy plain-error standard requires
    a defendant to show error; plainness; an adverse effect on his
    substantial rights; and a serious compromise of the fairness,
    integrity, or reputation of the trial, see, e.g., Takesian, 945
    F.3d at 563.
    These arguments lack heft, as the government points out.
    Enhancement
    We    can   make   relatively       quick   work   of   Cruz-Ramos's
    unpreserved     complaint    about    the   leadership    enhancement    —   an
    enhancement justified only if the government proved each of the
    following by a preponderance of the evidence:             that "the criminal
    enterprise involved at least two complicit participants (of whom
    [Cruz-Ramos] may be counted as one)"; and that "in committing the
    offense," Cruz-Ramos "exercised control over, managed, organized,
    or . . . otherwise . . . superintend[ed] the activities of . . .
    at least one of those other persons."           See United States v. Soto-
    Peguero, 
    978 F.3d 13
    , 23 (1st Cir. 2020) (quoting United States v.
    Cruz, 
    120 F.3d 1
    , 3 (1st Cir. 1997)).            As part of this analysis,
    a judge looks to a variety of factors, including the nature and
    degree of the defendant's participation, planning, and control —
    and   whether    he   exercised      decisionmaking      authority,    drafted
    collaborators, or claimed a bigger piece of the spoils.               See USSG
    - 26 -
    § 3B1.1 cmt. 4; see also United States v. Ilarraza, 
    963 F.3d 1
    , 14
    (1st Cir. 2020).
    We    approach   a   judge's    leadership   assessment   with
    "considerable deference," given the fact-intensive character of
    the inquiry.     See Soto-Peguero, 978 F.3d at 23 (quoting Cruz, 
    120 F.3d at 3
    ).      Add to this that Cruz-Ramos must show that the judge
    plainly     erred,    and    his   level     of   difficulty    escalates
    exponentially.     See, e.g., Tsarnaev, 968 F.3d at 80 (stressing how
    the plain-error rule places a formidable obstacle in an appellant's
    way).
    Cruz-Ramos rests his hopes solely on the notion that
    "[n]o evidence" showed he controlled or managed a participant.
    But to reject this claim, all we need do is observe that a
    cooperator said that as a drug-point owner within the organization,
    Cruz-Ramos "order[ed] . . . other guys" around — something only La
    ONU "leaders" could do.      See Soto-Peguero, 978 F.3d at 23 (noting
    that "[e]ven a single instance of managing the actions of others
    can substantiate the enhancement").          Cruz-Ramos implies that he
    cannot be a leader because "every drug point owner was a leader"
    and with so many "leader[s], no one is a leader" for sentencing
    purposes.     But unfortunately for him, the law is that "more than
    one person" can "qualif[y] as a leader or organizer of a criminal
    - 27 -
    association or conspiracy."   See USSG § 3B1.1 cmt. 4.   So what he
    offers is hardly the stuff of plain error.
    Criminal History
    That takes us to Cruz-Ramos's preserved claim that the
    judge wrongly assigned criminal-history points for his harboring-
    a-fugitive conviction.    To hear him tell it, that conviction
    involved conduct relevant to the RICO conspiracy and so could not
    be factored into his criminal-history score.   As support, he (at
    least implicitly) relies on a guideline rule saying that when
    tweaking a defendant's sentence for his prior criminal history, a
    judge may use as a "prior sentence" only a "sentence previously
    imposed . . . for conduct not part of the instant offense."     See
    USSG § 4A1.2(a)(1) (emphasis added); see also id. § 4A1.2 cmt. 1
    (excluding from the criminal-history calculation sentences for
    conduct qualifying as relevant conduct under USSG § 1B1.3).
    But Cruz-Ramos overlooks a key guideline exception in
    the RICO context.   Even if some convictions count as part of the
    underlying racketeering conduct, if the defendant got convicted of
    them before "the last overt act of the [RICO] offense," the judge
    can treat them as part of the defendant's criminal history.    See
    USSG § 2E1.1 cmt. 4.     So while prosecutors used Cruz-Ramos's
    harboring-a-fugitive conviction to support the RICO-conspiracy
    charge, because that conviction came before the final overt act
    - 28 -
    (as no one here disputes), it contributes points toward his
    criminal-history tally.
    Consecutive Sentences
    We need not say much about Cruz-Ramos's last preserved
    claim either.    He concedes that a firearm-in-furtherance sentence
    under 
    18 U.S.C. § 924
    (c) must run consecutively to any prison
    sentence on any other count (including the count covering the crime
    in which the firearm was used).   See 
    18 U.S.C. § 924
    (c)(1)(D)(ii).
    But he insists that "[§] 924(j), not [§] 924(c), determined [his]
    sentence" — roughly speaking, § 924(j) makes it a crime to kill
    anyone when doing acts that infract § 924(c), but does not mention
    a consecutive-sentencing requirement.12        And citing an Eleventh
    12   § 924(c) pertinently provides that
    [a]ny person who, during and in relation to any crime of
    violence or during a drug trafficking crime . . . uses
    or carries a firearm, or who, in furtherance of any such
    crime, possesses a firearm, shall, in addition to the
    punishment provided for such crime of violence or drug
    trafficking crime,
    receive a sentence of at least 5 years.           See 
    18 U.S.C. § 924
    (c)(1)(A)(i). § 924(c) ups that minimum if he brandishes or
    discharges the firearm or uses a certain type of firearm (e.g., a
    machine gun).   See id. § 924(c)(1)(A)(ii)-(iii), (c)(1)(B)(i)-
    (ii).   And § 924(c) declares that the sentence cannot "run
    concurrently" with any other. See id. § 924(c)(1)(D)(ii).
    § 924(j) then relevantly says that "a person who, in the
    course of a violation of subsection (c), causes the death of a
    person through the use of a firearm," shall "be punished by death
    or by imprisonment for any term of years or for life" if the
    killing constitutes "murder" under 
    18 U.S.C. § 1111
     (essentially
    - 29 -
    Circuit case, United States v. Julian, 
    633 F.3d 1250
     (11th Cir.
    2011),   he       asserts    that    a    §   924(j)     sentence      need    not   run
    consecutively to any other sentence.
    The problem for Cruz-Ramos, however, is that his two-
    sentence argument lacks both record cites and supporting analysis
    — for what it is worth, the government disputes his account of the
    record, saying that he "was charged and convicted" under § 924(c)
    and   that    "the    jury    instructions         and   jury   form    pertained     to
    § 924(c), not § 924(j)"; and the government also notes that other
    circuits     disagree       with    the   Eleventh's      interpretive        view   (the
    thinking     of    those    courts       being    that   § 924(j)'s     reference     to
    § 924(c) incorporates § 924(c)'s consecutive-sentencing decree).
    See generally United States v. Dillon, 
    720 F. App'x 310
    , 311 (7th
    Cir. 2018) (listing circuits standing against Julian's reading of
    the relevant statutory schemes).                 And given this state of affairs,
    we second the government's suggestion that Cruz-Ramos waived this
    rather complex claim by the superficial treatment he gave it.                        See
    Rodríguez,     
    659 F.3d at 175-76
           (deeming   waived     arguments     not
    seriously     developed       in    a     party's    opening    brief);       Braintree
    Lab'ys., Inc. v. Citigroup Glob. Mkts. Inc., 
    622 F.3d 36
    , 44 (1st
    Cir. 2010) (same).
    defining murder as "the unlawful killing of a human being with
    malice aforethought").
    - 30 -
    WRAP UP
    For the reasons recorded above, we affirm the district
    court across the board.
    - 31 -