United States v. Fernandez-Jorge ( 2018 )


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  •           United States Court of Appeals
    For the First Circuit
    No. 15-1900
    UNITED STATES OF AMERICA,
    Appellant,
    v.
    ÁNGEL GABRIEL FERNÁNDEZ-JORGE,
    Defendant, Appellee.
    No. 15-1975
    UNITED STATES OF AMERICA,
    Appellee,
    v.
    BRIAN PÉREZ-TORRES,
    Defendant, Appellant.
    ____________________
    No. 15-2001
    UNITED STATES OF AMERICA,
    Appellee,
    v.
    JOSÉ A. DE LA CRUZ-VÁZQUEZ,
    Defendant, Appellant.
    ____________________
    No. 15-2104
    UNITED STATES OF AMERICA,
    Appellee,
    v.
    EDWIN OTERO-DÍAZ,
    Defendant, Appellant.
    ____________________
    No. 15-2168
    UNITED STATES OF AMERICA,
    Appellee,
    v.
    ISAÍAS MENDOZA-ORTEGA,
    Defendant, Appellant.
    ____________________
    No. 15-2244
    UNITED STATES OF AMERICA,
    Appellee,
    v.
    EDWIN OTERO-MÁRQUEZ,
    Defendant, Appellant.
    APPEALS FROM THE UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF PUERTO RICO
    [Hon. Daniel R. Domínguez, U.S. District Judge]
    Before
    Torruella, Lipez, and Barron,
    Circuit Judges.
    Víctor P. Miranda-Corrada, for appellant Fernández-Jorge.
    Ramón M. González, on brief for appellant Pérez-Torres.
    Humberto Guzmán-Rodríguez and Guzmán & Rodríguez-López Law
    Office, on brief for appellant De la Cruz-Vázquez.
    Edgar L. Sánchez-Mercado, on brief for appellant Otero-Díaz.
    Juan A. Albino-González, with whom Albino & Assoc. Law Office,
    PC was on brief, for appellant Mendoza-Ortega.
    Lauren E.S. Rosen, Assistant Federal Public Defender, with
    whom Patricia A. Garrity, Research and Writing Specialist, Eric A.
    Vos, Federal Public Defender, and Vivianne M. Marrero-Torres,
    Assistant Federal Public Defender, Supervisor, Appeals Section,
    were on brief, for appellant Otero-Márquez.
    - 2 -
    Mainon A. Schwartz, Assistant United States Attorney, with
    whom Rosa Emilia Rodríguez-Vélez, United States Attorney, and
    Mariana E. Bauzá-Almonte, Assistant United States Attorney, Chief,
    Appellate Division, were on brief, for appellee.
    June 26, 2018
    - 3 -
    TORRUELLA, Circuit Judge.          After a jury trial, Ángel
    Gabriel Fernández-Jorge, Brian Pérez-Torres, José A. De La Cruz-
    Vázquez, Edwin Otero-Díaz, Isaías Mendoza-Ortega, Edwin Otero-
    Márquez,     and   Rafael        Martínez-Trinidad    (collectively,     the
    "Defendants") were found guilty of possessing firearms in a school
    zone.1    The jury also found Mendoza-Ortega and Otero-Márquez guilty
    of possessing firearms as convicted felons.          All of the Defendants
    then brought motions for acquittal, but the district court granted
    only that of Fernández-Jorge.           Now, the government appeals the
    district court's grant of Fernández-Jorge's motion, while Pérez-
    Torres, De La Cruz-Vázquez, Otero-Díaz, Mendoza-Ortega, and Otero-
    Márquez    (collectively,    the    "Defendant-Appellants")     appeal   the
    district court's denial of their motions for acquittal.            We also
    consider whether the district court's jury instructions concerning
    aiding and abetting liability were erroneous.
    After considering all of this, we hold the following:
    (1)   sufficient      evidence     supported   the   Defendant-Appellants'
    convictions for possession of a firearm in a school zone (Count
    Three); (2) sufficient evidence did not support Fernández-Jorge's
    conviction for possession of a firearm in a school zone; (3) the
    district    court's    erroneous     jury   instructions   on   aiding   and
    1  Martínez-Trinidad elected not to pursue an appeal following his
    conviction.
    -4-
    abetting liability require us to vacate the Defendant-Appellants'
    convictions for Count Three; and (4) sufficient evidence did not
    support the convictions of Mendoza-Ortega and Otero-Márquez for
    possession of a firearm as convicted felons, which requires us to
    reverse their convictions for Count One.
    I.   Background
    We begin with a brief summary of the facts and procedural
    events leading up to this appeal, into which we shall delve with
    greater detail in taking up the various issues the parties have
    raised.    Because this appeal pertains, in part, to the Defendants'
    motions for acquittal before the district court, we recount the
    facts here "in the light most favorable to the government."      See
    United States v. Acevedo, 
    882 F.3d 251
    , 257 (1st Cir. 2018).
    A. The shootout
    A shootout took place in front of the Jardines de Oriente
    public housing project, in Humacao, Puerto Rico, during the late
    morning of February 16, 2012.    Officers from the Puerto Rico Police
    Department arrived at Jardines de Oriente shortly after the gunfire
    stopped.    They observed several people in dark clothing abscond -
    - jumping the housing project's perimeter fence and entering the
    large concrete tunnel behind the fence into which the Mabú creek
    drains.    That tunnel runs between the Jardines de Oriente and the
    Rufino Vigo public elementary school (the "School").      It ends at
    -5-
    the Doctor Palou public housing project.          Officers positioned
    themselves outside of the tunnel's entrance.        Two men attempted
    to escape from the top of the tunnel through a manhole.         After
    police fired a warning shot, one of these men, De la Cruz-Vázquez,
    dove into some nearby bushes and was promptly arrested, searched,
    and found to be carrying ammunition.      The other man retreated back
    down the manhole in response to the warning shot.
    Meanwhile, the officers waiting at the entrance to the
    tunnel heard voices and the sound of gunfire from inside the
    tunnel.   The officers ordered anyone inside the tunnel to exit
    with their hands up.    The six remaining Defendants -- all shirtless
    and unarmed -- emerged from the tunnel and were arrested.    Officers
    then searched the tunnel and recovered seven firearms, ammunition,
    and various articles of clothing.      Ballistics analyses would later
    link four of these weapons to the shootout at Jardines de Oriente.
    Five of the Defendants stated that they lived at the
    Doctor Palou public housing project, located at the end of the
    tunnel opposite where the shootout occurred.     Mendoza-Ortega lived
    elsewhere in Humacao.     Fernández-Jorge was not from Humacao, but
    rather from San Juan.
    B. The trials
    In February 2012, a grand jury returned an indictment
    against the seven individuals arrested in connection with the
    -6-
    shootout.    Count One of the indictment charged Otero-Márquez and
    Mendoza-Ortega with possessing firearms as convicted felons, in
    the principal and aiding and abetting forms.    See 18 U.S.C. §§ 2,
    922(g).     Count Three accused all seven Defendants of possessing
    firearms within a school zone, also in the principal and aiding
    and abetting forms.    See 18 U.S.C. §§ 2, 922(q)(2)(A).2
    All of the Defendants proceeded to trial, and the jury
    found all of them guilty on all counts.    However, it then came to
    light that, through unsanctioned research, one or more members of
    the jury had discovered that two people died during the shootout.3
    This forced the district court to declare a mistrial.
    A second trial ensued, and the jury again found all
    Defendants guilty on Count Three, and found Mendoza-Ortega and
    Otero-Márquez guilty on Count One as well.     The jury filled out
    general verdict forms, which did not distinguish between the
    principal and aiding and abetting forms of the charged offenses.
    The Defendants proceeded to file motions for acquittal.         See
    Fed. R. Crim. P. 29.     In an omnibus order, the district court
    denied those motions in their entirety, except as to Fernández-
    2  The district court granted the Defendants' motion for acquittal
    on Count Two of the indictment, possession of a stolen firearm,
    and the government did not appeal that decision.
    3   Evidence of these deaths had been excluded from trial.
    -7-
    Jorge.   According to the district court, the government had not
    brought forth sufficient evidence that Fernández-Jorge -- who,
    unlike his codefendants, did not live in Humacao -- knew or should
    have known that he was in a school zone.    The court sentenced each
    of the remaining Defendants to 60 months' imprisonment for Count
    Three.   It also sentenced both Mendoza-Ortega and Otero-Márquez
    to an additional 120 months' imprisonment for Count One, to be
    served consecutively with their sentences for Count Three.
    Now, the government appeals Fernández-Jorge's acquittal
    and the Defendant-Appellants appeal their convictions, challenging
    both the sufficiency of the evidence and the district court's jury
    instructions.   We   first   consider   whether   sufficient   evidence
    supported all of the Defendants' convictions on Count Three, and
    the convictions of Mendoza-Ortega and Otero-Márquez on Count One.
    We then address whether the district court correctly instructed
    the jury on aiding and abetting liability.
    II.    The motions for acquittal
    We review a district court's ruling on a Rule 29 motion
    de novo, viewing the evidence in the light most favorable to the
    jury's guilty verdict.    United States v. Santos-Soto, 
    799 F.3d 49
    ,
    56-57 (1st Cir. 2015).   The "verdict must stand unless the evidence
    is so scant that a rational factfinder could not conclude that the
    government proved all the essential elements of the charged crime
    -8-
    beyond a reasonable doubt."        United States v. Rodríguez-Vélez, 
    597 F.3d 32
    , 39 (1st Cir. 2010) (emphasis in original).
    Because Counts One and Three charged the Defendants in
    the principal and aiding and abetting forms, we also find it useful
    to   review    the    essentials   of    aiding   and    abetting   liability.
    18 U.S.C. § 2 provides that anyone who aids or abets a crime
    against the United States "is punishable as a principal."4                 One
    "is liable under § 2 for aiding and abetting a crime if (and only
    if) he (1) takes an affirmative act in furtherance of that offense,
    (2) with the intent of facilitating the offense's commission."
    United States v. Encarnación-Ruiz, 
    787 F.3d 581
    , 587 (1st Cir.
    2015) (quoting Rosemond v. United States, 
    134 S. Ct. 1240
    , 1245
    (2014)).      To be guilty of aiding and abetting a crime, a defendant
    need not have actually assisted the principal in committing each
    element of the crime.       
    Id. But, the
    defendant does need to have
    "intend[ed]      to   facilitate    'the      specific    and   entire   crime
    charged.'"      
    Id. (quoting Rosemond,
    134 S. Ct. at 1248).              As a
    4  The overwhelmingly preferred nomenclature for this form of
    criminal liability -- which the indictment also used -- is the
    conjunctive "aiding and abetting." Yet, 18 U.S.C. § 2 applies to
    anyone who "aids, abets, counsels, commands, induces or procures
    [the underlying offense's] commission."     
    Id. (emphasis added).
    This distinction seems to lack significance, though, as it is
    difficult to imagine a case in which a defendant has "aided" the
    commission of an offense without also having "abetted" it, or vice
    versa.
    -9-
    result, the defendant must have had "advance knowledge" of the
    crime he or she facilitated to be guilty of aiding and abetting
    it.     
    Id. at 588
    (quoting 
    Rosemond, 134 S. Ct. at 1249
    ); see also
    United States v. Ford, 
    821 F.3d 63
    , 69 (1st Cir. 2016).           Finally,
    "[p]roving beyond a reasonable doubt that a specific person is the
    principal is not an element of the crime of aiding and abetting."
    United States v. Campa, 
    679 F.2d 1006
    , 1013 (1st Cir. 1982).
    A. The Defendant-Appellants' motions for acquittal on Count
    Three
    In attacking the district court's denial of their Rule
    29 motions as to the possession of a firearm in a school zone
    count,    the    Defendant-Appellants      advance   three   categories    of
    arguments.      First, all of the Defendant-Appellants argue that the
    government      did   not   introduce   sufficient    evidence   that     they
    possessed the firearms recovered from the tunnel.            Second, De la
    Cruz-Vázquez and Otero-Díaz assert that the government failed to
    sufficiently establish that they were, in fact, within a school
    zone.    Finally, Pérez-Torres, De la Cruz-Vázquez, Mendoza-Ortega,
    and Otero-Díaz argue that sufficient evidence did not support the
    conclusion that they knew or should have known that they were in
    a school zone.
    1. Possession of firearms
    We begin by considering whether any rational fact-finder
    could have concluded beyond a reasonable doubt that the Defendant-
    -10-
    Appellants possessed firearms or aided and abetted each other in
    doing so with advance knowledge of this element.5                  See 
    Rosemond, 134 S. Ct. at 1249
    ; Rodríguez-Vélez, 597 at 39.
    "'Knowing possession of a firearm' may be proven through
    either actual or constructive possession."                     United States v.
    Guzmán-Montañez,       
    756 F.3d 1
    ,   8    (1st   Cir.   2014).       Proving
    constructive       possession,    in    turn,     requires     proving    that   the
    defendant had "the power and intention of exercising dominion and
    control over the firearm." 
    Id. (citing United
    States v. DeCologero,
    
    530 F.3d 36
    , 67 (1st Cir. 2008)).               Constructive possession may be
    joint.    
    DeCologero, 530 F.3d at 67
    .            Additionally, it is possible
    to   prove    constructive       possession       by    relying   entirely       upon
    circumstantial evidence.         Guzmán-Montañez, 756 at 8 (citing United
    States v. Wight, 
    968 F.2d 1393
    , 1398 (1st Cir. 1992)).                     However,
    "mere presence with or proximity to weapons or association with
    another      who     possesses      a       weapon"      is    insufficient        to
    circumstantially establish constructive possession. United States
    v. Rodríguez-Lozada, 
    558 F.3d 29
    , 40 (1st Cir. 2009).                    Rather, it
    is necessary to show "some action, some word, or some conduct that
    5  None of the Defendant-Appellants have challenged the district
    court's holding that, for Rule 29 purposes, the government
    succeeded in establishing that the firearms in question had
    traveled through interstate commerce, an element of Counts One and
    Three. See 18 U.S.C. § 922(g), (q)(2)(A).
    -11-
    links the individual to the contraband and indicates that he had
    some stake in it, some power over it."                United States v. McLean,
    
    409 F.3d 492
    , 501 (1st Cir. 2005) (quoting In re Sealed Case, 
    105 F.3d 1460
    ,    1463    (D.C.      Cir.     1997)).      For   example,       valid
    circumstantial     evidence        of   constructive      possession       includes
    evidence of an individual's "control over the area where the
    contraband is found."        
    Id. Though no
    witnesses testified to having seen any of the
    Defendant-Appellants possessing a weapon, the government contends
    that it introduced ample circumstantial evidence of possession.
    We now review that evidence.
    First, Officer Ángel Fontánez testified that he was on
    motorcycle patrol near Jardines de Oriente on the morning of
    February 16, 2012, when he heard the sound of gunfire emanating
    from   the   housing    project.          Fontánez    took   cover   behind    the
    supporting     column   of   a     nearby   bridge,    and   once    the   gunfire
    subsided, he approached Jardines de Oriente on his motorcycle.
    Though some buildings partially obstructed his view, he saw seven
    or eight individuals -- several of them wearing dark clothing --
    running towards a fence at the back of Jardines de Oriente.                     He
    said that he then observed three or four people scale that fence
    and head toward the entrance of a tunnel located on the other side.
    -12-
    Fontánez hurried to the tunnel's entrance, where several other
    officers had also gathered.
    Fontánez then testified that, while positioned outside
    the entrance, he heard voices and the sound of gunfire from within
    the tunnel.     According to Fontánez, two people then emerged from
    a manhole atop the tunnel and attempted to flee.                When those two
    did not heed Fontánez's order to freeze, he fired a warning shot.
    In response, one of the two individuals retreated back down the
    manhole, while the other dove into some nearby bushes.             The bushes,
    however, provided ineffective cover, and officers arrested this
    individual    (later    identified    as    De   la   Cruz-Vázquez)    --   whom
    Fontánez described as wearing a black jacket and gloves -- and
    discovered a magazine containing around 30 bullets in his pocket.
    Officer     Víctor    Cruz-Sánchez    corroborated       Officer    Fontánez's
    testimony     about    arresting     De    la    Cruz-Vázquez    and   finding
    ammunition on him after he surfaced from the manhole.6
    Agent José López-Ortiz testified that he was on patrol
    when he received a radio call about the events transpiring at
    Jardines de Oriente.       He approached the housing project in his
    6  Cruz-Sánchez himself did not testify during the second trial.
    Rather, the district judge's two law clerks read Cruz-Sánchez's
    testimony from the first trial into the record. One clerk played
    the part of Cruz-Sánchez, and the other the various attorneys who
    questioned him during that proceeding.
    -13-
    vehicle and waited underneath the same bridge as Fontánez, along
    with other officers, until the sound of gunfire coming from
    Jardines de Oriente relented.         López-Ortiz testified that, as he
    and Fontánez approached Jardines de Oriente together, he saw three
    people dressed in black jump over a fence and into a ditch on the
    other side.    From there, López-Ortiz explained, those individuals
    ran into a tunnel, at which point he lost sight of them.
    The jury also heard testimony from Puerto Rico Police
    Agent Abdel Morales-De León, another of the officers who responded
    to the shootout at Jardines de Oriente.         He too testified about
    hearing male voices and gunfire from within the tunnel as he
    approached its entrance alongside other officers.            Six shirtless
    males then emerged from the tunnel and were promptly detained.7
    Morales-De    León   recovered   a   .233-caliber   bullet   --   which   he
    described as appearing recently discharged -- from the ground where
    7  We note that the record is not entirely clear as to whether De
    la Cruz-Vázquez and his companion attempted to escape from the
    manhole before or after the remaining six Defendants were arrested
    after emerging from the tunnel's entrance.       This is largely
    because no one officer testified about both events. The parties
    and the district court, however, all seem to have treated the
    "manhole escape" as having occurred first. Particularly because
    nobody has made arguments concerning the possibility that anyone
    remained in the tunnel after the seven Defendants were detained,
    we do not see any reason to depart from this assumption.
    Additionally, insofar as this sequence of events is more favorable
    to the jury's verdict, the standard for reviewing Rule 29 motions
    would also require us to construe the facts in this manner.
    -14-
    these individuals were arrested.         He then entered the tunnel with
    a group of officers, using a small flashlight to light their way.
    Morales-De León explained that their search of the tunnel turned
    up   seven   firearms,   a    fanny    pack   containing    several    loaded
    magazines, and various articles of dark clothing.            He added that
    the officers noticed fresh mud prints on the steps leading up to
    a manhole connecting the tunnel to the surface, and that the
    manhole cover had been removed.
    Officer Daniel Rosas-Rivera also provided an account of
    his role in responding to the shootout and subsequent events.             He
    described hearing gunfire from within the tunnel as he approached
    it alongside other officers.            He then told the jury that he
    observed six shirtless men emerge from the tunnel with their hands
    up, exclaiming "don't shoot us."         Rosas-Rivera was also among the
    officers who entered the tunnel with a flashlight immediately after
    the Defendants' arrest.         He testified that their sweep of the
    tunnel revealed that it was possible to exit the tunnel via a
    manhole, and that they found that manhole open, its cover having
    been moved aside.    Rosas-Rivera also explained that the officers'
    search of the tunnel yielded a bullet, loaded firearms, and
    magazines.
    Gualberto       Rivas-Delgado      testified      about      the
    investigation of the tunnel that he undertook as a member of the
    -15-
    Puerto Rico Police's Technical Services Division.          He arrived on-
    scene at around 4:00 p.m. on the day of the shootout, after Rosas-
    Rivera and Morales-De León had completed the initial sweep of the
    tunnel about which they testified.           Rivas-Delgado found more
    ammunition inside of the tunnel -- some of it submerged in puddles,
    and some sealed in a plastic bag -- as well as additional articles
    of clothing, most of them dark in color.
    Finally,   the    jury     heard    testimony     from     Edward
    Pérez-Benítez, a firearms examiner and tool marks expert from
    Puerto Rico's Institute of Forensic Sciences.           He explained that
    he had examined the weapons recovered from the tunnel and bullets
    recovered from the site of the shootout at Jardines de Oriente.
    His investigation led him to conclude that four of the guns found
    in the tunnel had been used in the shootout.
    In   synthesis,   the   jury    heard   the   following:   (1)   a
    shooting had occurred in the Jardines de Oriente on the morning of
    February 16, 2012; (2) seven or eight individuals in dark clothing
    were seen fleeing the scene of the shooting; (3) officers saw three
    or four of these men enter a tunnel; (4) De la Cruz-Vázquez was
    arrested, shirtless, after trying to escape from a manhole atop
    the tunnel, and was found to be carrying a loaded magazine; (5)
    officers standing at the entrance to the tunnel heard weapons
    discharge inside the tunnel; (6) the remaining six Defendants then
    -16-
    emerged, shirtless, from the tunnel and were arrested; (7) officers
    recovered seven firearms, ammunition, and various articles of dark
    clothing from within the tunnel; and (8) a ballistics expert linked
    four of those firearms to the shootout at Jardines de Oriente.
    All of this is sufficient evidence for a rational fact-
    finder to conclude that at least one of the Defendant-Appellants
    possessed a firearm, while the remainder aided and abetted him.
    See 
    Campa, 679 F.2d at 1013
    (identity of principal not an element
    of aiding and abetting).    And that is sufficient to sustain the
    Defendant-Appellants' Count Three convictions. The first component
    of this conclusion, that at least one of the seven Defendants
    possessed a firearm, is particularly unavoidable given that four
    of the weapons found in the tunnel had been fired during the
    shootout.   Further, keeping in mind that advance knowledge of each
    element of the underlying offense is an element of aiding and
    abetting, see 
    Rosemond, 134 S. Ct. at 1249
    , we agree with the
    government that the evidence here does tend to suggest that the
    Defendant-Appellants had advance knowledge of, and participated in
    some form in, the shootout.      Thus, we think that the evidence
    would allow a rational fact-finder to conclude that any Defendant-
    Appellants who were not principals (because they did not possess
    firearms) nonetheless facilitated the principal or principals'
    -17-
    possession, with advance knowledge of this element.              We now turn
    to the remaining elements of Count Three.
    2. Actual presence in a school zone
    We now take up the assertion of De La Cruz-Vázquez and
    Otero-Díaz that the government failed to establish that they were,
    in fact, in a school zone when they allegedly possessed a firearm.
    A "school zone" is the area within 1,000 feet from the grounds of
    any school.      United States v. Nieves-Castaño, 
    480 F.3d 597
    , 603
    (1st Cir. 2007) (quoting 18 U.S.C. § 921(a)(25)).            We note that
    the proper inquiry here -- given the possibility for aiding and
    abetting liability -- is whether any of the Defendants found
    himself in a school zone while possessing a firearm.
    At trial, government witness and Puerto Rico Police
    Officer José Hiraldo-Benítez explained his conclusion, which he
    reached by employing distance-measuring laser equipment, that 710
    feet separated the School's perimeter fence and the point in the
    tunnel where the weapons were found.        He likewise explained that
    804 and 837 feet separated the School's fence from two points where
    spent shell casings from the shootout had been found.8              Finally,
    according   to   Hiraldo-Benítez,    the   margin   of   error    for   these
    measurements was less than one inch.
    8   Hiraldo-Benítez's measurements relied on other                 officers'
    representations of where the weapons in the tunnel.
    -18-
    We find this to be sufficient evidence to support the
    conclusion that one or more of the Defendants possessed firearms
    within a school zone.        De La Cruz-Vázquez stresses that Hiraldo-
    Benítez may have arrived at his figure of 710 feet by measuring
    from a point atop the tunnel that did not necessarily lay precisely
    over the point in the tunnel where the weapons were found.                    This
    theoretical possibility does not, however, mean that no reasonable
    fact-finder   could       have   concluded     that   any   of   the   Defendant-
    Appellants possessed firearms anywhere within 1,000 feet of the
    School.
    First,     a     reasonable     fact-finder      could      well   have
    concluded that Hiraldo-Benítez did measure from the correct point
    atop the tunnel.        This is particularly so given the paucity of
    reasons that De la Cruz-Vázquez offers to believe that Hiraldo-
    Benítez   measured    from       an   incorrect   point.       Second,   even   if
    Hiraldo-Benítez did measure from the wrong point, that still would
    not   foreclose   the      reasonable     conclusion    that     the   Defendant-
    Appellants possessed firearms in a school zone.                   Given that at
    least four of the guns traveled from the site of the shootout to
    the tunnel, the precise location in the tunnel where they were
    found is of lesser importance.            We further note that De la Cruz-
    Vázquez does not dispute that shell casings were found within the
    school zone. And this strongly suggests that the shootout involved
    -19-
    guns being fired, and therefore possessed, within a school zone.
    De la Cruz-Vázquez and Otero-Díaz, therefore, come up quite short
    in attempting to convince us that no reasonable factfinder could
    have concluded that any of the Defendants possessed a firearm
    within 1,000 feet of the School.           Having resolved that point, we
    now take up the final disputed element of Count Three.
    3. Knowing presence in a school zone
    We   next   consider   whether    each   of   the    Defendant-
    Appellants knew or should have known that they were in a school
    zone while they were possessing a firearm or, alternatively, that
    each of them was aiding and abetting such possession of a firearm
    in a school zone with the requisite advance knowledge.                   See
    18 U.S.C. §§ 2, 922(q)(2)(A).        Circumstantial evidence may serve
    as the solitary proof of one's culpable knowledge.           United States
    v. O'Brien, 
    14 F.3d 703
    , 706 (1st Cir. 1994).                    However, in
    Guzmán-Montañez, we overturned the defendant's conviction under
    § 922(q)(2)(A) when the government, in attempting to establish the
    defendant's knowledge that he was in a school zone, relied solely
    upon the school's proximity to the location where the defendant
    was found 
    armed. 756 F.3d at 11-12
    .      In concluding that a rational
    factfinder could not have made this "giant leap of faith," we
    stressed in particular that the defendant was not a resident of
    that area.    
    Id. at 12.
       This contrasts with our holding in Nieves-
    -20-
    Castaño.   There, in reaching the opposite conclusion about the
    defendant's knowledge, we emphasized that "three minor children
    lived with the defendant, and it would be easy for a jury to
    conclude that she knew there were two schools nearby, within or
    just outside her housing project and less than 1000 feet away, and
    that she regularly passed by those 
    schools." 480 F.3d at 604
    .
    Here, the evidence of the Defendant-Appellants' knowledge of the
    school zone seems to fall between these two poles.
    The government makes a number of arguments in support of
    the   district   court's   determination   that   sufficient   evidence
    established that the Defendant-Appellants either knew or should
    have known that they were in a school zone.         First -- pointing
    largely to the same evidence we considered in addressing their
    actual presence in a school zone -- the government stresses that
    the Defendant-Appellants found themselves in close proximity to
    the School at the relevant times.       Specifically, the government
    highlights that the School's basketball court was approximately 50
    feet from the fence that the Defendant-Appellants scaled en route
    to the tunnel.     The government adds that the basketball court's
    roof was also visible from Jardines de Oriente.       But, on its own
    -- especially given that nothing about the roof of this basketball
    court suggested that it was part of a school -- this evidence would
    not suffice.     See 
    Guzmán-Montañez, 756 F.3d at 11-12
    .       However,
    -21-
    this   is   not   the   extent   of   the    evidence   that   the   government
    introduced.
    The government also avers that it would be reasonable
    for the jury to have inferred that the Defendant-Appellants put
    some amount of forethought into the shootout and their subsequent
    escape.     The swiftness of the Defendant-Appellants' flight from
    Jardines de Oriente and into the tunnel, the government says,
    suggests they had planned out this endeavor beforehand.               And as a
    result, the government tells us, a rational fact-finder could
    certainly infer that, in undertaking all of this planning, the
    Defendants would have realized that there was a school nearby.
    Furthermore, the government reminds us that all of the
    Defendant-Appellants were residents of Humacao, and that all of
    them except for Mendoza-Ortega lived at Dr. Palou, 9 and that
    9  We pause to address what appears to be a mistake in the district
    court's order on the Defendants' Rule 29 motions. In that order,
    the district court first stated that Otero-Márquez lived in the
    Dr. Palou housing project, while Mendoza-Ortega did not, though he
    did live elsewhere in Humacao. But in the next paragraph, after
    considering the arguments of the residents of the Dr. Palou
    projects, the district court remarked that "Edwin Otero-Márquez
    was a resident of Humacao and had been spotted with several co-
    defendants at the Dr. Palou housing project on another occasion.
    Hence, one can reasonabl[y] conclude that [he] knew the area well
    and was aware that the [School] was located on the same street as
    Dr. Palou . . . ." Thus, in this paragraph, the court appears to
    have confused Otero-Márquez, who was a resident of the Dr. Palou
    project, with Mendoza-Ortega, who was not.      Ultimately though,
    this error is harmless, because we, like the district court,
    conclude that sufficient evidence established that Mendoza-Ortega
    -22-
    Government witness Officer Lebrón-Delgado testified that he had
    seen Mendoza-Ortega at Dr. Palou before the date of the shootout.
    And this is all particularly important because the School, a two-
    story building, is located on the same street as Dr. Palou.
    Additionally, the front of the School features signage identifying
    it as an elementary school.
    We think that all of this would allow a reasonable fact-
    finder to conclude that all of the Defendant-Appellants either
    knew or should have known that they were in a school zone.      It is
    difficult to imagine that the four Defendant-Appellants who lived
    at Dr. Palou were unaware of the existence of a school on the same
    street.   Though Mendoza-Ortega did not live at Dr. Palou, we
    nonetheless find it reasonable to conclude that -- as a resident
    of Humacao who had visited Dr. Palou before -- he at least should
    have known that he was in a school zone.          And for these same
    reasons, we also find it reasonable to conclude for Rule 29
    purposes that the Defendant-Appellants all had "advance knowledge"
    of the School's location for purposes of aiding and abetting
    liability.
    In summary, given the evidence at trial, a rational fact-
    finder could conclude the following: (1) at least one of the
    and Otero-Márquez should have known they were in a school zone.
    -23-
    Defendant-Appellants possessed a firearm, while the others aided
    and   abetted   him    with    advance   knowledge;    (2)   the   Defendant-
    Appellant(s) who possessed a firearm did so while in a school zone;
    and (3) all of the Defendant-Appellants had advance knowledge of
    the School's location.          Thus, we hold that the government did
    introduce    sufficient       evidence   of   the     Defendant-Appellants'
    culpability on Count Three, and that the district court did not
    err in denying their Rule 29 motions as to that Count.
    B. Fernández-Jorge's motion for acquittal on Count Three
    We now take up the government's challenge to the district
    court's grant of Fernández-Jorge's motion for acquittal.                 The
    thrust of the government's challenge is that, while not a resident
    of    Humacao   like     the    Defendant-Appellants,        Fernández-Jorge
    nonetheless had ample reason to know he was in a school zone.             In
    so arguing, the government leans on evidence that the School
    (though not any signage identifying it as such) was visible from
    the entrance to Jardines de Oriente and nearby roads, and on the
    ostensibly planned nature of the shootout and the Defendants'
    flight from it -- which, according to the government, suggests a
    certain level of familiarity with the area.10
    10  The government also maintained in its brief that the evidence
    of Fernández-Jorge's knowledge of the school zone was particularly
    strong "given the district court's observation that . . . 'the
    route passing in front of the school is a principal way to arrive
    at Dr. Palou.'" But the district court order does not indicate
    -24-
    But a number of considerations cut in the opposite
    direction.   For one, as Fernández-Jorge stresses, none of the
    police officers who testified at trial had ever seen him in Humacao
    before the shootout.   In fact, the government did not introduce
    any evidence that Fernández-Jorge had ever visited Humacao before
    the morning of the shootout.   And we recall that the only part of
    the School actually visible from Jardines de Oriente is the roof
    of its basketball court, which, again, provides no indication that
    it is part of a school.   Additionally, while it is possible that
    Fernández-Jorge, who lived in San Juan, may have passed the
    School's front entrance and seen the signs identifying it as a
    school on his way to Humacao, this is not necessarily so.     For,
    Fernández-Jorge posits that in traveling to Jardines de Oriente
    from San Juan, one "would ordinarily take the more direct route,"
    which does not involve driving past the School's front entrance.
    Setting aside the question of whether this route is in fact the
    when at trial this was established, and the government has declined
    to provide a citation that would illuminate us on that score. We
    also observe that the government similarly cited only the district
    court order -- which, again, does not contain citations to the
    record -- for the proposition that the "front of the school
    contains the school's name and clearly identifies [it] as being an
    elementary school."    We feel compelled to      emphasize that --
    particularly in the context of arguments concerning the
    sufficiency of the evidence -- neglecting to provide citations to
    the record in support of factual assertions is a poor strategic
    choice.
    -25-
    most intuitive or direct, we do take note of the existence of an
    alternative route -- a point the government concedes -- that would
    not have taken Fernández-Jorge past the front of the School.
    In   sum,     the     government's    arguments    do   not    differ
    significantly from those that we rejected in Guzmán-Montáñez.               
    See 756 F.3d at 11-12
    .       The government's only arguments that are not
    a variation of imputing knowledge of a school zone though mere
    physical proximity to a school involve the shootout's apparent
    premeditation     and        coordination,     and   the    possibility     that
    Fernández-Jorge drove past the front of the School on his way to
    Jardines de Oriente.11
    But, even assuming that the Defendants did plan the
    shootout together, this would not have required them to have all
    visited   Jardines      de    Oriente    and   its   surrounding   area    with
    Fernández-Jorge    in    tow.       Additionally,     the    School's    seeming
    irrelevance to both the apparent objective of the Defendants' plan
    (to go to Jardines de Oriente and shoot firearms), and their
    11  In its brief, the government also tells us that the word
    "school" appears nearly 450 times in the trial transcript, and
    that while "some fraction of those mentions were at sidebar or
    otherwise outside the jury's hearing, the overall number is
    nonetheless indicative of the thoroughness with which the location
    of the school, its position relative to events, and its visibility
    were presented to the jury."       Out of fear of inadvertently
    dignifying this argument with a longer discussion of it, we simply
    say here that we do not find it persuasive.
    -26-
    attempted escape through the tunnel, also weakens the suggestion
    that    their   advance    planning      would    imply        Fernández-Jorge's
    knowledge of the school zone.            And we also find the less-than-
    certain possibility that Fernández-Jorge would have driven past
    the School en route to Jardines de Oriente insufficient to tip the
    scales towards the reasonable conclusion that he knew or should
    have known of its location.        This inferential "leap," see 
    id. at 12
    -- particularly in the absence of any evidence that Fernández-
    Jorge had previously been to Humacao, or about how and from where
    he arrived at Jardines de Oriente on the day of the shootout -- is
    too large for a rational fact-finder to have made.                     Therefore,
    because   the   government     fails    to    convince    us    that   sufficient
    evidence supported the conclusion, beyond a reasonable doubt, that
    Fernández-Jorge knew or should have known of the School's location,
    we affirm the district court's grant of his motion for acquittal.
    C. Mendoza-Ortega and Otero-Márquez's motions for acquittal on
    Count One
    Turning now to Count One -- which charged Mendoza-Ortega
    and    Otero-Márquez    with   possessing      firearms    as    felons   in   the
    principal and aiding and abetting forms -- we begin by highlighting
    that Mendoza-Ortega and Otero-Márquez, and nobody else, stipulated
    that they had been previously convicted of crimes potentially
    punishable with over one year of imprisonment, a necessary element
    of that offense.       See 18 U.S.C. § 922(g).           Now, in reviewing the
    -27-
    district court's denial of their motions for acquittal as to that
    count, we ask if a rational fact-finder could have reached either
    of the following conclusions: (1) that Otero-Márquez and Mendoza-
    Ortega    both   possessed   firearms;     or   (2)   that   one   of    these
    individuals possessed a firearm while the other aided and abetted
    him. This is so because these two are the only previously convicted
    felons among the Defendant-Appellants.            And this is a crucial
    point.    For, while Count Three required only that someone have
    possessed a firearm and that the rest of the Defendants have aided
    and abetted that person, Count One requires that at least one of
    two specific individuals -- that is, those with prior felony
    convictions -- possessed a firearm.
    Harkening   back   to   our    earlier    discussion    of    the
    government witnesses' trial testimony, 
    see supra
    § II.A.1, while
    it is plain that at least one of the Defendants possessed firearms,
    there is scant evidence providing insight into who among the
    Defendants that may have been.       Perhaps recognizing that it would
    face an uphill battle in attempting to show that any particular
    Defendant possessed a firearm, the government maintains that the
    evidence "permits the inference" that each of the seven Defendants
    possessed one of the seven firearms that police later found in the
    tunnel.     And because the evidence that any one Defendant in
    particular possessed a firearm would be equally applicable to the
    -28-
    remaining Defendants,12 it seems that the only possible conclusions
    to draw, for Rule 29 purposes, are that: (1) all seven Defendants
    possessed their own firearm; or (2) it is impossible to know which
    of the Defendants possessed firearms.            As a result of all of this,
    our   inquiry    becomes   this:     Could   a   rational    fact-finder     have
    concluded     beyond   a   reasonable    doubt    that    each   of   the   seven
    Defendants possessed exactly one firearm?              Or, alternatively, we
    can   frame    the   question   as   whether     the   government     introduced
    sufficient evidence that none of the Defendants were unarmed.
    In assessing whether the jury could permissibly conclude
    that, because the number of Defendants corresponds to the number
    of guns, each Defendant had one gun, we find it significant that
    only four of the guns were linked to the shootout.               In theory, one
    of the strongest arguments against the notion that one or more of
    the Defendants was unarmed is essentially "who in the world would
    participate in a planned shootout unarmed?"              But, while convincing
    in theory, this argument loses much of its persuasiveness here,
    when applied to the facts established at trial.
    We are confident in our conclusion, as discussed with
    respect to Count Three, that a rational fact-finder could have
    12 True, De la Cruz-Vázquez had ammunition on his person when he
    was arrested, but because he had not been previously convicted of
    a felony, this does not impact our analysis here.
    -29-
    concluded on the basis of the evidence at trial that the Defendant-
    Appellants had advance knowledge that one of their number possessed
    a firearm during the shootout in which they participated in some
    form.   But, it does not follow that the evidence that all seven
    Defendants were involved in the shootout -- in some form -- was
    strong enough to serve as the basis for the further inferential
    leaps that are still necessary to land at the conclusion that all
    seven Defendants possessed a firearm.                This is particularly so in
    light of our reluctance to "stack inference upon inference in order
    to uphold the jury's verdict."              United States v. Burgos, 
    703 F.3d 1
    , 10 (1st Cir. 2012) (quoting United States v. Valerio, 
    48 F.3d 58
    , 64 (1st Cir. 1995)); see also United States v. Ruiz, 
    105 F.3d 1492
    ,   1500    (while        circumstantial       evidence      alone    may    provide
    sufficient evidence to uphold a verdict, we disfavor stacking
    inferences      to      uphold   a    conviction     on    the    basis     of   purely
    circumstantial evidence).
    Keeping in mind, once more, that only four of the seven
    guns were linked to the shootout, we are left with competing
    explanations       as    to   why.     It   could    be    because       three   of   the
    Defendants, while armed, simply elected not to shoot during the
    shootout.      Or, it could also be that the Defendants who fired the
    guns that were linked to the shootout also possessed additional
    firearms    that     they     did    not   use    during   the    shootout.        Or   a
    -30-
    combination of these two things is also possible (e.g., two
    Defendants were unarmed, and two Defendants each possessed two
    guns, but only fired one).13        We thus conclude that there was not
    sufficient evidence for a rational jury to have concluded, beyond
    a reasonable doubt, that any of these scenarios was actually the
    case here.    See United States v. Flores-Rivera, 
    56 F.3d 319
    , 323
    (1st Cir. 1995) (reversal is required when "an equal or nearly
    equal theory of guilt and a theory of innocence is supported by
    the evidence viewed in the light most favorable to the prosecution,
    [because in such a case] a reasonable jury must necessarily
    entertain a reasonable doubt") (alteration in original).
    In summary, as the only Defendants previously convicted
    of felonies, to convict Otero-Márquez and Mendoza-Ortega on Count
    One, the government needed to show that at least one of those two
    possessed a firearm.       And, in the absence of any evidence that
    either was more likely than the remaining Defendants to have
    possessed firearms, to show that either of those two individuals
    possessed a firearm, the government needed to put on sufficient
    evidence that all seven Defendants did so.             To arrive at that
    conclusion,   the   jury    would    have   had   to   first   infer   from
    13 It is also theoretically possible that the Defendants were not
    responsible for bringing the three unfired guns into the tunnel,
    and that those guns were already there when they reached the
    tunnel. We find this less probable, though.
    -31-
    circumstantial evidence that all seven Defendants were involved in
    the shootout in some capacity, and then reject the possibility
    that any of the Defendants possessed more than one firearm.                      Thus,
    upholding the jury's verdict would require us to sanction both
    stacking inferences and choosing between two "equal or nearly
    equal" theories.         
    Flores-Rivera, 56 F.3d at 323
    ; see 
    Burgos, 703 F.3d at 10
    .       We decline to do so here, and hold that a rational
    fact-finder could not have found beyond a reasonable doubt that
    Otero-Márquez or Mendoza-Ortega possessed a firearm.                   We therefore
    hold     that    the   district    court      erred    in    denying     those     two
    individuals' motions for acquittal on Count One.
    III.   The Jury Instructions for Count Three
    Having concluded that sufficient evidence supported the
    Defendant-Appellants' Count Three convictions, we now take up the
    question of whether the district court's jury instructions for
    that Count were erroneous.14          At the end of the trial, Mendoza-
    Ortega    filed    a     motion   requesting    that    the    district     court's
    forthcoming       jury     instructions       reflect       Rosemond's     "advance
    knowledge" requirement, 
    see 134 S. Ct. at 1249
    .                    Otero-Márquez
    joined that request at the charge conference.                On appeal, Mendoza-
    14  Because we conclude that insufficient evidence supported the
    Count One convictions, we need not reach the question of whether
    the district court's aiding and abetting instructions for Count
    One were erroneous.
    -32-
    Ortega and Pérez-Torres both assert that, because they failed to
    take   Rosemond   into    account,   the      district   court's    aiding   and
    abetting instructions for Count Three were erroneous.
    This argument having been duly preserved, we must now
    determine    de    novo    whether      the    requested    instruction      was
    "substantially covered by" the instruction that the district court
    actually gave.      United States v. Baird, 
    712 F.3d 623
    , 628 (1st
    Cir. 2013); see also United States v. Godin, 
    534 F.3d 51
    , 56 (1st
    Cir. 2008) (our review of whether a trial court's jury instructions
    captured    the   elements   of   the    relevant    offense   is   de   novo).
    Moreover, it is of no import that the jury returned a general
    verdict here that did not distinguish between the principal and
    aiding and abetting forms of the offense.           A general guilty verdict
    cannot stand when it may have rested on constitutionally invalid
    grounds.    See Griffin v. United States, 
    502 U.S. 46
    , 53 (1991)
    ("[W]here a provision of the Constitution forbids conviction on a
    particular ground, the constitutional guarantee is violated by a
    general verdict that may have rested on that ground.") (citing
    Stromberg v. California, 
    283 U.S. 359
    , 568 (1931)).
    In light of the request made below, we must determine
    whether the district court's instructions adequately captured and
    impressed upon the jury Rosemond's requirement that to be guilty
    of aiding and abetting an offense, a defendant must have had
    -33-
    advance knowledge of each element of the offense.              As Rosemond
    clarifies,    "advance   knowledge"   is   "knowledge   that   enables   [a
    defendant] to make the relevant legal (and indeed, moral) 
    choice." 134 S. Ct. at 1249
    .      That is, the would-be accomplice must know
    of the principal's plan to commit the underlying offense with
    sufficient anticipation to be able to "attempt to alter that plan
    or, if unsuccessful, withdraw from the enterprise."             
    Id. Only then
    may aiding and abetting liability attach.
    Here, the district court instructed the jury that, to
    find the Defendants guilty of Count Three in the aiding and
    abetting modality, it needed to find, beyond a reasonable doubt,
    first that a principal committed the crimes charged, and "[s]econd,
    that the charged defendants consciously shared the other person's
    knowledge of the crimes charged in the indictment, intended to
    help each other, and took part in the endeavor, seeking to make it
    succeed."
    Whether this formulation runs afoul of Rosemond depends
    on whether "seeking to make it succeed" applies to all of the
    clauses that precede it, or only to its immediate predecessor:
    "took part in the endeavor."    If it applies to all of the preceding
    clauses, then we have no Rosemond problem because the instructions
    would require the jury to find that an alleged aider and abettor
    knew that the principal was to commit the crime of possessing a
    -34-
    gun in a school zone when he leant his assistance with the intent
    to make the criminal endeavor succeed.      That would be consistent
    with Rosemond's advance knowledge requirement.    But if the pronoun
    "it" in "seeking to make it succeed" refers only to "the endeavor,"
    then we do have a Rosemond problem.    In that case, the instructions
    would allow the jury to find a defendant guilty of aiding and
    abetting when the defendant (1) "took part in the endeavor, seeking
    to make it succeed" by (2) assisting the principal in bringing a
    gun to a particular location, and only then, upon realizing that
    this location was in a school zone, (3) "consciously shared" the
    principal's knowledge of the crime.     That is, this interpretation
    of the instruction does not require the government to have proven
    that the aider and abettor shared the defendant's knowledge of the
    crime before or even at the moment when he chose to lend his
    assistance.15   And that would conflict with Rosemond.
    15It may be helpful to visualize these alternative interpretations
    in this manner. The instructions comported with Rosemond if this
    is their proper interpretation: "that the charged defendants
    [(consciously shared the other person's knowledge of the crimes
    charged in the indictment, intended to help each other, and took
    part in the endeavor), seeking to make it succeed]."
    The instructions did not comport with Rosemond, though, if we
    interpret   them  this   way:   "that   the  charged   defendants
    [(consciously shared the other person's knowledge of the crimes
    charged in the indictment), (intended to help each other), and
    (took part in the endeavor, seeking to make it succeed)]."
    -35-
    This   second   possible      interpretation       seems    the    more
    likely of the two because the instruction uses the singular
    "seeking to make it succeed," making it unlikely that this clause
    was meant to apply to the entire list of things preceding it, which
    includes the plural "crimes charged in the indictment."                        At a
    minimum, it is distinctly possible that the jury interpreted the
    instructions this way.       As the Supreme Court has explained, when
    faced with ambiguous jury instructions, the proper inquiry is
    "'whether there is a reasonable likelihood that the jury has
    applied the challenged instruction in a way' that violates the
    Constitution."       Estelle     v.    McGuire,   
    502 U.S. 62
    ,    72   (1991)
    (quoting Boyde v. California, 
    494 U.S. 370
    , 380 (1990)).                    And it
    would indeed violate the Constitution if the jury convicted the
    Defendants on Count Three without the government having proven all
    of the offense's elements -- including "advance knowledge" --
    beyond a reasonable doubt.            See Patterson v. New York, 
    432 U.S. 197
    , 210 (1977) ("[T]he Due Process Clause requires the prosecution
    to prove beyond a reasonable doubt all of the elements included in
    the definition of the offense of which the defendant is charged.").
    Finally, before vacating convictions as the result of
    instructional      error,   we   must    assess   whether      that    error    was
    harmless.    See Koonce v. Pepe, 
    99 F.3d 469
    , 473 (1st Cir. 1996);
    accord Hedgpeth v. Pulido, 
    555 U.S. 58
    , 61 (2008).                     When jury
    -36-
    instructions fail to account for an element of the crime charged,
    that error is harmless only if we can conclude "beyond a reasonable
    doubt that the omitted element was uncontested and supported by
    overwhelming evidence, such that the jury verdict would have been
    the same absent the error."        United States v. Pizarro, 
    772 F.3d 284
    , 297-98 (1st Cir. 2014) (quoting Neder v. United States, 
    527 U.S. 1
    , 17 (1999)).     Here, this does not allow us to conclude that
    the district court's instructional error was harmless.
    First, given the centrality at trial of the question of
    whether the Defendants knew of the School's location, we cannot
    describe    the   element   of   "advance       knowledge"    as    uncontested.
    Moreover while we have concluded that, for Rule 29 purposes, a
    rational fact-finder could have found that the Defendants knew or
    should have known they were in a school zone, that requires far
    less than "overwhelming" evidence.             In the end, we cannot say that
    overwhelming evidence established that the Defendant-Appellants
    had advance knowledge that the principal was to possess a firearm
    within 1,000 feet of a school.          And so the error that infected the
    district    court's   aiding     and     abetting       instructions     was   not
    harmless.
    To conclude, there is a "reasonable likelihood" that the
    jury   interpreted    the   district          court's    aiding    and   abetting
    instructions in a way that violates Rosemond.                See Estelle, 502
    -37-
    U.S. at 72.   That error was not harmless.    See Pizarro, 772 at
    297-98.   Therefore, because the jury's general verdict could have
    rested on a constitutionally impermissible ground, see 
    Griffin, 502 U.S. at 53
    , we must vacate the district court's judgments of
    guilty as to Count Three for all of the Defendant-Appellants.16
    16 We have one last loose end to tie up. Not all of the Defendant-
    Appellants requested a Rosemond instruction below, and not all of
    them claim on appeal that the district court's aiding and abetting
    instructions were erroneous. But we do not think that this means
    that only those Defendant-Appellants who have raised this issue
    should have their convictions vacated. First, the government has
    not taken this position. See United States v. Burhoe, 
    871 F.3d 1
    , 28 n.33 (1st Cir. 2017) (finding that the government had
    forfeited any argument that the defendants had waived a particular
    issue). The purpose behind our "waiver" doctrines also supports
    this conclusion. Appellate courts are typically loath to consider
    forfeited arguments for two reasons.      The first concerns our
    institutional role as a court of review: we review the decisions
    that a lower court (or agency) has actually made. See Miller v.
    Nationwide Life Ins. Co., 
    391 F.3d 698
    , 701 (5th Cir. 2004) ("We
    have frequently said that we are a court of errors, and that a
    district court cannot have erred as to arguments not presented to
    it."); see also HTC Corp. v. IPCom GmbH & Co., KG, 
    667 F.3d 1270
    ,
    1281-82 (Fed. Cir. 2012) (emphasizing finality and judicial
    economy). The second justification stems from the idea that it
    is unfair to allow parties to surprise one another with new
    arguments that they did not make at the appropriate procedural
    juncture. See Prime Time Int'l Co. v. Vilsack, 
    599 F.3d 678
    , 686
    (D.C. Cir. 2010) (quoting Hormel v. Helvering, 
    312 U.S. 552
    , 556
    (1941)).
    But here, vacating the convictions of only those Defendant-
    Appellants who have raised the Rosemond issue would vindicate
    neither of those interests. The district court considered this
    issue and issued a ruling on it.     And the government -- both
    because this issue arose below and because some of the Defendant-
    Appellants took it up in their opening briefs -- certainly had
    sufficient notice of this issue at the appellate stage.        We
    therefore think that the district court's instructional error
    requires vacating all of the Defendant-Appellants' convictions on
    -38-
    IV.    Conclusion
    While the Defendant-Appellants have raised additional
    claims of evidentiary error and challenges to their sentences, we
    need not reach them.       See United States v. Sasso, 
    695 F.3d 25
    , 31
    & n.1 (1st Cir. 2012) (vacating because of instructional error and
    then   declining     "to   rule     gratuitously      upon    the   defendant's
    remaining assignments of trial and sentencing error" because "[i]t
    is unlikely that any of these claims will arise in the same posture
    if the case is retried").           With regard to Fernández-Jorge, the
    district   court's    judgment      is    affirmed.    With    regard   to   the
    Defendant-Appellants, the district court's judgment is reversed as
    to Count One and vacated as to Count Three.
    Affirmed, Reversed, and Vacated.
    Count Three. See United States v. Cardales-Luna, 
    632 F.3d 731
    ,
    736 (1st Cir. 2011) (explaining it is in the interests of justice
    to treat "materially identical cases alike"); cf. Nat'l Ass'n of
    Soc. Workers v. Harwood, 
    69 F.3d 622
    , 627 (1st Cir. 1995)
    (appellate courts may exercise their discretion to forgive waiver
    when "the equities heavily preponderate in favor of such a step").
    Lastly, we note that other courts faced with similar situations
    have invoked Fed. R. App. P. 2 -- which authorizes courts to
    suspend other rules sua sponte -- to forgive a defendant's failure
    to incorporate by reference arguments advanced in a co-defendant's
    brief pursuant to Rule 28(i).    See United States v. Olano, 
    394 F.2d 1425
    , 1439 (9th Cir. 1991), rev'd on other grounds, 
    507 U.S. 725
    (1993); United States v. Rivera-Pedin, 
    861 F.2d 1522
    , 1526 n.9
    (11th Cir. 1988) (invoking Fed. R. App. P. 2's authorization "to
    relieve litigants of the consequences of default where manifest
    injustice would result"); United States v. Gray, 
    626 F.2d 494
    , 497
    (5th Cir. 1980); United States v. Anderson, 
    584 F.2d 849
    , 853 (6th
    Cir. 1978).
    -39-