Commonwealth v. Gonzalez , 475 Mass. 396 ( 2016 )


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    SJC-11731
    COMMONWEALTH   vs.   CAURIS GONZALEZ.
    Essex.      December 11, 2015. - September 6, 2016.
    Present:    Gants, C.J., Cordy, Botsford, Lenk, & Hines, JJ.1
    Homicide. Joint Enterprise. Evidence, Joint venturer, Intent.
    Intent. Practice, Criminal, Capital case.
    Indictment found and returned in the Superior Court
    Department on June 29, 2011.
    The case was tried before Mary K. Ames, J.
    Robert F. Shaw, Jr., for the defendant.
    David F. O'Sullivan, Assistant District Attorney, for the
    Commonwealth.
    LENK, J.     Shortly before 6 P.M. on January 10, 2009, Robert
    Gonzalez was shot and killed while sitting in his minivan near
    an intersection in Lawrence.    The shooting was carried out by
    four people who, seconds before, had been dropped off across the
    intersection by someone driving a Dodge Caravan minivan.      In
    1
    Justice Cordy participated in the deliberation on this
    case and authored his separate opinion prior to his retirement.
    2
    June, 2011, the defendant was indicted by an Essex County grand
    jury on one count of murder in the first degree based on
    evidence that she had been the driver of the Caravan.     After a
    jury trial in the Superior Court, the defendant was convicted as
    a joint venturer of murder in the first degree on a theory of
    deliberate premeditation.
    On appeal, the defendant claims that the trial judge erred
    in denying her motion for a required finding of not guilty.      In
    particular, the defendant contends that the evidence was
    insufficient to allow a rational juror to conclude, beyond a
    reasonable doubt, that she was the driver of the Dodge Caravan,
    or that she knew of and shared the coventurers' intent to kill
    the victim.   The defendant also claims, among other things, that
    the judge erred by allowing the admission of (a) the opinion of
    one of the Commonwealth's witnesses interpreting cellular site
    location information (CSLI) generated by the defendant's
    cellular telephone, and (b) a video recording comparing still
    photographs from surveillance footage of the Dodge Caravan that
    had transported the four passengers involved in the shooting
    with the Dodge Caravan owned by the defendant's mother.    The
    defendant contends also that her trial counsel was ineffective
    for failing to object to the admission of an audio recording of
    statements she made to police shortly after the killing.
    3
    We conclude that the motion for a required finding of not
    guilty should have been granted.       While the jury could have
    concluded, on this evidence, that the defendant was in some way
    involved in the shooting, or that it was more likely than not
    that she was the driver, the evidence was insufficient to allow
    a jury to draw this conclusion beyond a reasonable doubt.
    Further, even if the jury could have found that the defendant
    transported the coventurers to the scene, the evidence did not
    allow the jury to conclude, beyond a reasonable doubt, that she
    knew of or shared the coventurers' lethal intent, as is required
    for a conviction of deliberately premeditated murder committed
    by way of joint venture.       Because we reverse the conviction on
    this basis, we do not address the defendant's other claims.
    1.     Background.   a.   Background information.   In late 2008,
    the defendant, then nineteen years old and living with her
    mother in Methuen, sold a Honda Civic automobile to the victim,
    Robert Gonzalez.2    The victim made a partial payment for the
    vehicle, but, as of January, 2009, there was an outstanding
    balance.3
    2
    The victim and the defendant are not related.
    3
    The Commonwealth argued at trial, in both its opening
    statement and closing argument, that the amount owed was $100.
    While the evidence does not indicate the exact amount of the
    remaining balance, the defendant does not contest this amount.
    4
    On the evening of Friday, January 9, 2009, the defendant
    and her boy friend, Joel Javier, attended a party hosted by one
    of Javier's friends at an apartment on Essex Street in Lawrence.
    Also at the party was Yoshio Stackermann, a friend of Javier.
    The defendant had driven both Stackermann and Javier to the
    party in her mother's vehicle, a 2000 Dodge Caravan.4      The
    defendant, Javier, and Stackermann left the party together5 and
    drove away in the Caravan at approximately 11 or 11:30 P.M.,
    with plans to get something to eat at a nearby fast food
    restaurant and then return to the party.       They did not go
    directly to the restaurant, and they did not return to the
    party.6
    A few hours later, at 2 A.M. on Saturday, January 10, 2009,
    the defendant and Javier (but not Stackermann) were in the
    Caravan near the same fast food restaurant they had planned to
    visit earlier.    The defendant was driving.     The defendant
    4
    The defendant shared use of this vehicle with her mother,
    in whose name it was insured and who apparently used it to drive
    to and from work.
    5
    At some point earlier, Javier left the party without the
    defendant and drove her minivan to a liquor store; he returned
    shortly thereafter and ultimately left the party together with
    the defendant and Stackermann.
    6
    It is not clear from the record where they did go.
    5
    spotted the victim's vehicle, also a Dodge Caravan.7     She called
    the victim from her cellular telephone, apparently to ask about
    the money she was owed.     The victim did not answer.   The victim
    then called Javier's cellular telephone and ended up speaking to
    the defendant.    The victim and the defendant had a "very loud"
    conversation.
    A "couple of minutes" later, shortly after 2 A.M., the
    defendant concluded the conversation with the victim and entered
    the drive-through lane at the fast food restaurant.      As she and
    Javier waited for their food, the victim drove by in his Caravan
    and began "yelling" in the direction of the defendant's vehicle.
    Javier shouted back.
    The victim drove around the corner and parked in a nearby
    parking lot.     He got out of his minivan, along with three male
    passengers, and walked toward the restaurant.     They saw Javier
    standing outside the vehicle and the defendant sitting inside
    it.   The victim and Javier walked towards each other, shouting,
    until they were "[a]bout an arm length" apart.     Javier pulled
    out a knife.    He was "not waving it towards" the victim, but
    "just letting it [be] known that he had a knife on him."      The
    victim punched Javier in the face, knocking out one of his teeth
    7
    The victim had sold the Honda Civic, which he had
    purchased from the defendant, and used the money to buy the
    Caravan.
    6
    and causing him to drop the knife.   Javier spit out the tooth,
    and one of the three men with the victim picked it up.
    The victim and his companions turned and walked back toward
    the victim's minivan.   Javier followed behind saying, "[O]h, you
    knocked my fucking tooth out, you fucking really going to
    knock -- you're really going to do that shit?"   When the victim
    and his companions reached their vehicle, Javier, still
    following behind, "threw his phone, trying to hit" the victim
    with it.   The device broke and was left on the ground.8
    The defendant, who had remained in the driver's seat of her
    mother's Caravan, drove to Javier and told him to get in.
    Javier refused.   The defendant stepped out of the Caravan.
    Javier then said that the victim was "not going to stay like
    that," and entered the vehicle on the driver's side.     The
    defendant got in on the passenger's side, and the two drove off.
    The defendant "dropped off" Javier at his house in Lawrence,
    where he lived with his parents, and the defendant returned to
    her house.   The two talked on the telephone throughout the night
    until about "[six] something in the morning."
    At approximately 6:45 A.M., the defendant drove her mother
    to work.   The defendant then went to Javier's house, where the
    two slept until noon.   They drove in the Caravan to a pharmacy,
    where they bought ointment for Javier's swollen mouth.     On their
    8
    Javier did not return to retrieve it.
    7
    return, as the defendant was driving and Javier was sitting in
    the rear passenger seat, the defendant saw the victim's Caravan.
    According to the defendant's statement to police, which was in
    evidence at trial, the victim "came . . . to hit [her] head on,"
    she swerved to avoid him, and the victim was "saying . . . a
    whole bunch of stuff."9
    The defendant and Javier drove back to Javier's house
    "between one or two" P.M.   As the two got out of the Caravan,
    they saw the victim's vehicle approaching.   The defendant told
    Javier to drive off in the Caravan, which Javier did.   After
    Javier left, the defendant knocked on the front door, and
    Javier's mother answered.   The defendant told her that "there
    was a man outside who wanted to beat up Joel."   Javier's mother
    stepped outside and saw the victim across the street standing
    near his vehicle.   He was laughing, saying that "he was carrying
    [Javier's] tooth" and that he would sell it back "for a hundred
    bucks."   The victim left a few minutes later, and Javier,
    driving the Caravan, returned sometime thereafter.10
    9
    The defendant said in her written statement to police that
    she could not hear what the victim was saying because the
    driver's side window was shut.
    10
    The victim arrived at his house around 4 P.M., and left
    shortly thereafter to run errands for his girlfriend.
    8
    At approximately 1:40 P.M., the defendant called her
    brother's girl friend, Ashley Calixto, to say that she would
    come by later to visit Calixto at her house in Methuen.
    The evidence of what occurred between that point and
    6 P.M., the approximate time of the shooting, consists primarily
    of cellular telephone records and accompanying CSLI.11,12   We turn
    first to the period between 2 P.M. and approximately 5:30 P.M.
    In that interval, eight calls were made between cellular
    telephone numbers belonging to three of Javier's friends --
    Stackermann, Thomas Castro, and Francis Wyatt -- all of whom
    11
    In a written statement provided to police, the defendant
    stated that, at approximately 2 P.M., she drove Javier's mother
    to work and then spent most of the rest of the afternoon (until
    her visit to Calixto, her brother's girl friend) in Javier's
    house, leaving only to pick up certain items from her house and
    her father's business. Javier's mother testified that the
    defendant took her to work at 3:30 P.M.
    12
    According to an employee of wireless telephone company T-
    Mobile, Raymond McDonald, called by the Commonwealth as a
    witness, a cellular site is a tower-like transmitter that sends
    data to, and receives data from, cellular telephones. The
    concentration of cell sites is heavier in urban areas than in
    rural ones. The "average" cellular site covers about "two
    miles," although it "could be a lot further, depending on a lot
    of factors." "Typically, it[ is] the closest cell site [to the
    device] that will handle [a] signal" sent to or received from
    that device. It is "not always the closest," however, "it's the
    tower that has the strongest signal at the time." Cellular site
    location information refers to a log kept by the telephone
    company concerning the cellular sites that a particular cellular
    telephone connected to when it made and received calls. See
    Commonwealth v. Augustine, 
    467 Mass. 230
    , 231 n.1 (2014), S.C.,
    
    472 Mass. 448
    (2015).
    9
    worked with Javier at a local snow-shoveling business.13    The
    telephone records also show that, during this period, six calls
    were made between the defendant's number and Stackermann's
    number, and two between her number and Castro's number.14
    We turn next to the interval between shortly after
    5:30 P.M. and the shooting.   At 5:41 P.M., a call was made from
    Castro's number to Stackermann's number.   The call was
    transmitted, on both the sending and receiving ends, through
    wireless telephone company T-Mobile cellular site 4160, located
    approximately nine-tenths of a mile from the intersection in
    Lawrence where the shooting took place.    At 5:45 P.M., a call
    was made from Stackermann's number to Wyatt's number; it was
    transmitted through T-Mobile cellular site 4422, located
    approximately eight-tenths of a mile from that intersection.15
    At 5:51 P.M., a call to the defendant's number was transmitted
    13
    Two were between Stackermann and Wyatt, five between
    Stackermann and Castro, and one between Castro and Wyatt.
    14
    Three of the Commonwealth's witnesses testified that,
    generally and at various points on the day of the shooting,
    Javier made and received calls using the defendant's cellular
    telephone. With regard to the calls in question here, there was
    no evidence whether the defendant was the speaker.
    15
    In one place in its brief, the Commonwealth implies that
    tower 4422 is the T-Mobile cellular site closest to the
    intersection where the shooting took place. According to the
    record, however, as the Commonwealth acknowledges elsewhere in
    its brief, T-Mobile cellular site 4449, located approximately
    four-tenths of a mile from the intersection, is closer.
    10
    from T-Mobile cellular site 4422.16   Between 5:45 P.M. and
    6:01 P.M., there were no outgoing calls from the numbers
    belonging to the defendant, Castro, Stackermann, and Wyatt.
    b.   The shooting.   The events immediately surrounding the
    shooting, between 5:57 P.M. and 5:58 P.M., were recorded by four
    surveillance cameras17 mounted on a house near the intersection
    of Haverhill Street and Hampton Street in Lawrence.18    The
    cameras were on the northern side of the intersection, while the
    shooting took place on the southern side.    The intersection
    itself was less than two miles from the defendant's house, about
    one and one-half miles from Javier's house, and approximately
    one mile from the automobile dealership owned by the defendant's
    father.
    At 5:57 P.M., the victim's Dodge Caravan drove north on
    Hampton Street, parking on that street just before its
    intersection with Haverhill Street.    The victim was driving.
    There were two passengers in the vehicle, one in the front
    16
    Twenty-three other calls from the defendant's number were
    transmitted through T-Mobile cellular site 4422 on the day of
    the shooting. It is not claimed that the defendant was at the
    shooting scene when these other calls were made.
    17
    The cameras were infrared devices with no sound recording
    capability, whose footage was "choppy" and of insufficient
    quality to identify facial features or license plate numbers.
    18
    Hampton Street, a side street, runs roughly north-south.
    It intersects at its northern end with Haverhill Street, a main
    thoroughfare, which runs roughly east-west.
    11
    passenger's seat and one in the rear seat.   The passenger in the
    front seat got out of the vehicle and walked into a nearby
    building.   The victim and the other passenger remained in the
    minivan.
    Approximately twenty seconds later, another Dodge Caravan
    (suspect vehicle) came into the view of the cameras heading west
    on Haverhill Street towards the intersection.   It stopped near
    the intersection.   Four individuals got out and immediately
    walked south across the street toward the victim's minivan,
    stopping traffic as they did so.19   Two of the individuals headed
    to the vehicle's right side, while two headed to the left.     The
    individuals reached the rear of the vehicle.    The vehicle
    lurched forward and then slid towards the side of the road.      A
    pedestrian in the foreground ducked out of the way, apparently
    hearing shots.   Subsequent investigation revealed that at least
    fifteen shots were fired from behind the vehicle by two
    different handguns, and that two of those shots hit the victim
    in the back.20   The four individuals fled, heading south away
    from Haverhill Street.   This entire course of events ended
    19
    The video does not show the facial features of the
    suspects, or whether weapons were displayed.
    20
    The passenger emerged from the vehicle after the
    shooting, apparently uninjured, and tended to the victim until
    police arrived.
    12
    approximately thirty seconds after the individuals were dropped
    off.
    Immediately after dropping off the four individuals, the
    suspect vehicle drove straight (west) on Haverhill Street for
    several feet and then turned right (north) onto a side street.
    A few moments later, it turned around and drove back to
    Haverhill Street.   There, it turned right (west) and drove out
    of the view of the cameras.
    One of the victim's companions called 911, and police were
    dispatched at around 5:59 P.M.    The responding officer found the
    victim with wounds to his back and side.    He was taken to a
    hospital, where he was pronounced dead.
    At around 6:01 P.M., two calls were made from the
    defendant's number to Castro's number; the calls were
    transmitted through T-Mobile cellular site 4449, the one closest
    to the scene of the crime.21   Also at 6:01 P.M., a call was made
    from Castro's number to a local taxicab service; the caller
    asked to be picked up on Warren Street, two blocks west of the
    shooting scene.   Between 6:04 P.M. and 6:06 P.M., three calls
    were made from the defendant's number (to her brother's number
    and to that of Calixto, his girl friend); all were transmitted
    21
    Telephone records show that six other calls to and from
    the defendant's number were transmitted through T-Mobile
    cellular site 4449 on the day of the shooting. These other
    calls took place at times when it is not claimed that the
    defendant was at the crime scene.
    13
    through T-Mobile cellular site 4160, located less than one mile
    from the scene of the shooting.
    At "6:15 -- 20-ish," the defendant and Javier arrived at
    Calixto's house in her mother's Dodge Caravan; there was no
    evidence who was driving.22    Calixto, who had undergone surgery a
    week before, gave Javier a Percocet pill for pain in his mouth,
    which was "red and sore."     The defendant stayed until 6:45 P.M.,
    when she left to pick up her mother at work.    She returned there
    later that evening to pick up Javier.
    Sometime that evening, Stackermann arrived unannounced at
    the house of his friend Alberto Medina.    Medina's wife answered
    the door and, in response to his inquiry, told Stackermann that
    Medina was not home.   Four days later, Medina was arrested by
    Lawrence police on an unrelated charge.    Following his arrest,
    he offered to show police a gun that he had in his house.
    Police took possession of the gun.    A State trooper test-fired
    the gun and compared the resulting bullet casings to casings
    found at the scene of the shooting.     He concluded to "a
    reasonable degree of ballistic certainty" that six of the bullet
    casings from the shooting scene came from Medina's gun.      The gun
    22
    The defendant told police that she had arrived at
    Calixto's house about fifteen to twenty minutes earlier, around
    6 P.M. McDonald, the T-Mobile witness, testified that, had she
    actually been at Calixto's house by then, "one would expect
    [her] call[s] to hit" other cellular sites closer to Calixto's
    address in Methuen.
    14
    also was examined for fingerprints and traces of
    deoxyribonucleic acid (DNA).    A fingerprint belonging to Medina
    was recovered, as was one belonging to an unknown individual.
    c.   Investigation.   By January 13, 2009, three days after
    the shooting, investigating officers learned that Javier had
    "had some sort of a disagreement with the victim."     Detectives
    went to Javier's house to interview him.     Javier's father
    answered the door, told them that Javier was not at home, and
    then telephoned Javier.    Javier arrived a few minutes later with
    the defendant.   The detectives asked both Javier and the
    defendant if they would agree to speak with officers at the
    police station, and each agreed.    They were interviewed
    separately.
    The defendant waived her Miranda rights and consented to
    the interview being recorded.     During the interview, detectives
    laid out their theory of the case and accused the defendant of
    having driven the coventurers to the scene of the crime; the
    defendant denied the accusations.    She stated that she and
    Javier were "together all day."    When the detectives asked if
    she had been the only one driving her mother's Dodge Caravan
    that day, she responded "Mmm hmm."23    When they asked her who of
    Javier's friends might have been connected to the shooting, she
    23
    The defendant also mentioned that Javier had driven the
    minivan at one point, shortly before the victim offered to sell
    back Javier's tooth.
    15
    answered, "I have no idea . . . I don't know any of his other
    friends."   She also stated that, between 5:30 and 6 P.M. on
    January 10, 2009, she "was probably on my way to [Calixto's] or
    in the process of getting there or something."
    Finally, the defendant said that, on the night of the
    shooting, at about 10 P.M., she went with Javier, as well his
    mother and sister, to her aunt's house and
    "just asked [the aunt] for what we should do since people
    are saying that [Javier] was there when he wasn't. She
    just said to . . . write everything you did on a piece of
    paper so you . . . won't forget if questions are asked
    after."24
    The detectives asked the defendant if she had in fact written
    everything down and whether she had the statement with her.    The
    defendant responded that she had written everything down, that
    she had a copy with her, and that the police "can keep it."     In
    this written statement, the defendant claimed that she "got to
    [Calixto's] house a little before 6:00 [P.M.]"   The interview
    ended after approximately one hour.
    On January 17, 2009, police seized the Dodge Caravan, which
    was parked at the defendant's mother's workplace.   While
    searching the vehicle pursuant to a warrant, they found receipts
    belonging to the defendant and a paystub belonging to Javier.
    24
    The defendant explained that she asked her aunt for
    advice because her "husband's a cop and she studies the law."
    This was redacted, over the defendant's objection, from the
    statement presented at trial.
    16
    They also conducted forensic testing, but did not find "any
    evidence," such as fingerprints, fibers, or DNA, "link[ing]"
    Stackermann, Castro, or Wyatt to the vehicle.
    On January 26, 2009, one and one-half weeks later, the
    defendant and Javier traveled together to the Dominican
    Republic.   The purpose of the trip was to allow Javier to have
    his tooth fixed at low cost.    The defendant returned a month
    later, in February, 2009.    Javier returned in September, 2009.
    On June 29, 2011, an Essex County grand jury returned an
    indictment against the defendant charging her with murder in the
    first degree.
    d.   Trial.   Trial was held in the Superior Court from July
    15 through August 2, 2013.   The Commonwealth proceeded on a
    theory of deliberate premeditation, arguing that the defendant
    had aided the principals -- Javier, Stackermann, Castro, and
    Wyatt -- by driving them to the scene of the shooting while
    knowing of and sharing their lethal intent.25
    On the fifth day of trial, the Commonwealth called Peter
    Smith, a civilian employee of the Federal Bureau of
    Investigation's forensic audio, video, and image analysis Unit.
    25
    Castro was tried separately in April, 2013, and
    acquitted. Javier's first trial, in June, 2013, resulted in a
    hung jury. He was convicted, in August, 2013, following a
    second trial, of murder in the first degree. Stackermann also
    was tried in June, 2013, and found guilty of murder in the
    second degree. The charges against Wyatt were dropped.
    17
    Smith analyzed images of the suspect vehicle from the
    surveillance video.    While he could not determine whether the
    suspect vehicle was the one owned by the defendant's mother,
    agreeing when asked that the vehicle seen in the video recording
    "might be the same vehicle and it might not be the same
    vehicle," he did conclude that the suspect vehicle was a Dodge
    Caravan.26   Without objection, the jury were shown a video
    recording created by Smith that superimposed a photograph of the
    suspect vehicle on a photograph of the defendant's mother's
    Caravan, "fad[ing] back and forth from the [suspect vehicle] to
    the [defendant's vehicle]."
    On the eighth day of trial, the Commonwealth called Raymond
    McDonald, a manager at T-Mobile's law enforcement relations
    group.    On the basis of his testimony as keeper of the records,
    certain T-Mobile cellular telephone records were introduced in
    evidence.    McDonald also provided technical background on how
    CSLI data are generated and stored, and opined over objection as
    to the meaning of certain CSLI data from the defendant's
    cellular telephone.
    In particular, McDonald opined that "[t]ypically, it[ is]
    the closest cell[ular] site [to a device] that will handle [a]
    signal" sent to or received from that device.    Based on this, he
    26
    He did not state whether the suspect Caravan, like the
    Caravan owned by the defendant's mother, was from model year
    2000.
    18
    concluded, over objection, that a cellular telephone call made
    from Calixto's address "would not reach [T-Mobile cellular site]
    4449[]," which transmitted the two calls to Castro's number from
    the defendant's number in the minutes after the shooting.     The
    defendant moved unsuccessfully to strike the latter testimony.
    On cross-examination, the defendant elicited that McDonald did
    not have engineering training or experience, and that, while
    McDonald knew that "there are numerous factors that go into what
    [cellular] site" a particular call will use,27 he did not "have
    any information about [the effect those factors may have had] in
    this case."
    The next day, the Commonwealth played a recording of the
    defendant's police interview for the jury.   The recording was
    presented without objection, with both parties agreeing to
    certain redactions.   The judge had expressed some concern about
    parts of the recording at a hearing the day before the statement
    was introduced.   Defense counsel said that he had made a
    tactical decision to have police accusations and denials
    admitted in conjunction with the defendant's own words.     The
    redacted version of the defendant's statement, which was played
    to the jury, included the detectives' theory of the case, their
    27
    These factors include the "power output" of the cellular
    site, "topography," the presence of "manmade structures" between
    the device and cellular site, "traffic on the particular cell
    site," "the maintenance status of the particular sites," and the
    "capacity of the phone" making or receiving the call.
    19
    statements accusing the defendant of involvement in the
    shooting, and the defendant's denials of those accusations.
    After the close of the Commonwealth's case, the defendant
    moved for a required finding of not guilty.    The motion was
    denied.   The defendant renewed the motion after the close of all
    the evidence, and it was again denied.     On August 2, 2013, the
    jury found the defendant guilty of murder in the first degree.28
    2.   Discussion.   Under the theory of murder presented at
    trial, the Commonwealth was required to prove that the defendant
    intentionally caused the death of the victim "with deliberate
    premeditation . . . after a period of reflection."    Model Jury
    Instructions on Homicide 37 (2013).    See Commonwealth v. Lao,
    
    443 Mass. 770
    , 779 (2005), S.C., 
    450 Mass. 215
    (2007) and 
    460 Mass. 12
    (2011).   Because the Commonwealth did not contend that
    the defendant herself carried out the killing, but only that she
    aided the coventurers, see G. L. c. 274, § 2 ("aid[ing]"
    punished like act of "principal felon"), it was the
    Commonwealth's burden to show that the defendant
    (a) "participated in the commission of the crime charged,"
    (b) did so "knowingly," and (c) "shared the required criminal
    intent" (citation omitted).    Commonwealth v. Britt, 
    465 Mass. 87
    , 100-101 (2013).     In the circumstances here, this required a
    28
    The defendant did not file a motion for a new trial
    pursuant to Mass. R. Crim. P. 30(b), as appearing in 
    435 Mass. 1501
    (2001).
    20
    showing that the defendant was the driver of the suspect
    vehicle, that she knew her passengers intended to kill the
    victim, and that she shared this intent.
    In evaluating whether the evidence at trial was sufficient
    to support these elements, we "view the evidence presented in
    the Commonwealth's case-in-chief in the light most favorable to
    the Commonwealth and ask whether any rational trier of fact
    could have found the essential elements of the crime beyond a
    reasonable doubt."    Commonwealth v. Simpkins, 
    470 Mass. 458
    , 461
    (2015), citing Commonwealth v. Latimore, 
    378 Mass. 671
    , 677
    (1979).    "[C]ircumstantial evidence is sufficient to establish
    guilt beyond a reasonable doubt," Commonwealth v. Miranda, 
    458 Mass. 100
    , 113 (2010), cert. denied, 
    132 S. Ct. 548
    (2011),
    S.C., 
    474 Mass. 1008
    (2016), and inferences drawn from such
    evidence "need only be reasonable and possible; [they] need not
    be necessary or inescapable."    Commonwealth v. Beckett, 
    373 Mass. 329
    , 341 (1977).    Nonetheless, "it is not enough for the
    appellate court to find that there was some record evidence,
    however slight, to support each essential element of the
    offense; it must find that there was enough evidence that could
    have satisfied a rational trier of fact of each such element
    beyond a reasonable doubt."     Commonwealth v. Latimore, supra at
    677-678.   In addition, "[n]o[] . . . conviction [may] rest upon
    the piling of inference upon inference or conjecture and
    21
    speculation" (quotations and citation omitted).    Commonwealth v.
    Swafford, 
    441 Mass. 329
    , 343 (2004) (Swafford).
    Applying these standards, we conclude that the evidence was
    insufficient to allow a rational juror to find, beyond a
    reasonable doubt, either that the defendant participated in the
    crime by driving the suspect vehicle or that she had the mental
    state required for a conviction of murder in the first degree on
    a theory of deliberate premeditation.
    a.    Participation.   The Commonwealth maintains that there
    was sufficient evidence to establish beyond a reasonable doubt
    that the defendant drove the suspect vehicle.    While "[t]here
    was no direct evidence offered to prove this proposition, [the]
    jury . . . could have found" the following.     
    Swafford, supra
    at 339.   First, the defendant had motive to kill the victim, as
    the victim owed the defendant money, had punched the defendant's
    boy friend in the face, and had tried to sell back the boy
    friend's tooth.   Second, on the day of the shooting, the
    defendant drove her mother's Dodge Caravan, the same make and
    model as the suspect vehicle, and arrived in that Caravan at
    Calixto's house about twenty minutes after the shooting.    Third,
    multiple calls were exchanged between the defendant's cellular
    telephone number and those of Castro and Stackermann in the
    22
    hours before the shooting.29    In addition, no calls were made
    from her number during a fifteen-minute interval around the time
    of the shooting, two calls were made from her number to Castro's
    in the minutes after the shooting, and these latter two calls
    were transmitted through cellular site 4449, the one closest to
    the crime scene.30    Fourth, the defendant may have displayed
    consciousness of guilt by claiming to have arrived at Calixto's
    house around the time of the killing, rather than, as Calixto
    testified, fifteen minutes later; by claiming not to have known
    Javier's friends; and by documenting her whereabouts on the day
    of the killing before being asked by police to do so.    In
    essence, then, the Commonwealth contends that the verdict was
    properly based on evidence of (a) motive, (b) the involvement in
    the crime of the defendant's telephone and her mother's vehicle,
    and (c) consciousness of guilt.
    The jury's determination that the defendant was the driver
    of the suspect vehicle could have been based on the following
    inferences from this evidence.    First, they might have inferred
    that the defendant's motive to kill the victim impelled her
    29
    Stackermann, in turn, could be tied to the killing by an
    inference that he left the murder weapon with Medina, who then
    turned it over to police. Castro may be connected to the
    killing by evidence that someone calling from his cellular
    telephone number requested a taxi pick-up two blocks from the
    crime scene minutes after the killing.
    30
    See note 
    15, supra
    .
    23
    actually to do so.   This inference, by itself, would not have
    been sufficient to support a conviction because, while existence
    of motive may make a defendant's participation more likely, see
    Commonwealth v. Henderson, 
    47 Mass. App. Ct. 612
    , 613 (1999)
    (conviction as coventurer supported by evidence that defendant
    "had a quarrel with" victim), it cannot be the sole basis for
    proving such participation.   "That [a defendant] . . . had a
    motive to commit the crime does not . . . mean that he did
    commit the crime."   
    Swafford, supra
    at 339.
    The jury also reasonably could have inferred consciousness
    of guilt.   However, even if motive and consciousness of guilt
    are combined, they are insufficient to establish beyond a
    reasonable doubt that the defendant was the driver, because
    "evidence of motive and consciousness of guilt is [not]
    sufficient to withstand [a] defendant's motion for [a] required
    finding of not guilty."31   Commonwealth v. Mazza, 
    399 Mass. 395
    ,
    398 (1987).
    31
    See Commonwealth v. Toney, 
    385 Mass. 575
    , 584-585
    (1982), and cases cited (acts suggesting consciousness of guilt
    insufficient to convict because such acts "may often be prompted
    by something other than feelings of guilt"). Here, the
    instruction on consciousness of guilt stated that "the
    defendant may have intentionally made certain false statements"
    to police about when she arrived "at Ashley Calixto's home."
    While the statement in question -- that, at 6 P.M., the
    defendant "was probably on my way to [Calixto's] or in the
    process of getting there or something" -- could have been a
    deliberate attempt to conceal her own involvement, it also could
    have been "prompted by something other than feelings of guilt."
    24
    The jury properly could have convicted the defendant, then,
    only if the evidence of motive and consciousness of guilt were
    supplemented by other indications that the defendant was the
    driver of the suspect vehicle.    The Commonwealth points to
    evidence that the defendant's vehicle and cellular telephone
    were involved in the shooting, and argues that this suffices "to
    tip the scales in [its] favor."    See 
    Swafford, supra
    at 342.    We
    consider the evidence with respect to each in turn.
    i.    Vehicle.   The evidence with regard to the defendant's
    mother's vehicle could have led a reasonable juror to find that
    the defendant drove the suspect vehicle only if that juror were
    willing to "pil[e] . . . inference upon inference."     See 
    id. at 343.
      First, the juror would have had to infer that the
    suspect vehicle was, in fact, the minivan that belonged to the
    defendant's mother.    While this would have been a reasonable
    conclusion to draw, as both were Dodge Caravans, it still would
    have involved an "inferential leap," 
    id., because the
    Commonwealth's expert did not state that he had been able to
    
    Id. at 585.
    For example, it might have been an imprecise
    estimate or an effort to cover up actions by other people, such
    as her boy friend Javier or his friends. See 
    id. ("defendant could
    have been absent from her home and place of work for
    reasons consistent with her innocence: she may have wanted to
    avoid disclosing the whereabouts of her sister").
    25
    match the individual characteristics of the two automobiles.32
    Second, once the juror inferred that the suspect vehicle was the
    defendant's, he or she would have had to infer, further, that
    the defendant was the one driving it.
    The Commonwealth argues that it is permissible to assume
    "that the owner[33] of an automobile is . . . the driver."     See
    
    id. at 340-341.
      While "we recognize this logic," it does not
    allow the jury to conclude beyond a reasonable doubt that the
    defendant was driving, absent some "evidence to suggest that it
    is unlikely [the defendant] would have permitted someone else to
    drive [her] automobile."34   
    Id. at 341
    and cases cited ("we
    32
    The Commonwealth's vehicle expert also did not provide
    any testimony about how likely it was that a given vehicle in
    the area would be a Dodge Caravan. Such vehicles were not
    necessarily uncommon. Indeed, the victim's vehicle also was a
    Dodge Caravan. Cf. Commonwealth v. Mattei, 
    455 Mass. 840
    , 855
    (2010) ("nonexclusion" testimony that two DNA samples could be
    same, or could not, is of minimal probative value "without
    accompanying statistical explanation of the meaning of
    nonexclusion").
    33
    The defendant's mother was named as the insured in the
    policy covering the Dodge Caravan the defendant drove, and
    apparently used it to commute to work, but also frequently
    allowed the defendant to drive it.
    34
    This evidence might consist, for example, of testimony
    that the vehicle was rarely seen being driven by anyone other
    than the defendant. See Commonwealth v. Swafford, 
    441 Mass. 329
    , 341 & n.17 (2004). The Commonwealth suggests that such
    evidence was present here because the defendant answered "Mmm
    hmmm," when the detectives asked her whether she was the only
    person driving the Caravan that day. This inconclusive response
    could not have been intended as a categorical statement that no
    one else drove the Caravan, however, as the defendant stated in
    26
    cannot say that [this logic] supports the Commonwealth's
    conclusion beyond a reasonable doubt" because "concept of
    automobile owners permitting friends or associates to drive
    their automobiles certainly is not unusual in common experience
    or in our cases").   Here, there was no evidence that the
    defendant maintained exclusive use of her mother's minivan.   To
    the contrary, in addition to evidence of the defendant's
    mother's use of the vehicle, there was evidence that Javier
    drove the Caravan twice on the day of the shooting without the
    defendant in the vehicle, and once with the defendant as a
    passenger.35
    the same interview that Javier drove the vehicle shortly before
    the victim's offer to sell back Javier's tooth. Compare 
    id. at 341
    n.17 (defendant's "sister [stated that she] 'never saw the
    automobile without defendant . . . ,' thereby suggesting that
    [defendant] did not permit others to drive his automobile," but
    "this suggestion is belied by the Commonwealth's evidence that
    [defendant] asked his sister to [drive] the automobile" on one
    particular occasion).
    35
    The Commonwealth notes that the defendant was in her
    Caravan approximately twenty minutes after the shooting, when
    she and Javier arrived at Calixto's house, allowing an inference
    that she had been in the vehicle twenty minutes earlier, when
    the shooting occurred. While perhaps reasonable, this
    "inferential leap[]" cannot sustain a conviction beyond a
    reasonable doubt. See 
    Swafford, supra
    at 343. The total
    distance from the scene of the shooting to Calixto's house --
    including a stop at Javier's house, where the defendant told
    police she had been before she left to visit Calixto -- is
    slightly more than four miles. The distance from the scene
    directly to Calixto's house is also approximately four miles.
    Thus, even if the defendant's minivan had been used to drop off
    the coventurers, she could have been picked up after the
    shooting on the way to visit Calixto.
    27
    ii.    Cellular telephone.   A similar "piling of inference
    upon inference" would have been required for a reasonable juror
    to tie the defendant to the crime via her cellular telephone.
    See 
    Swafford, supra
    at 343.     To find proof of guilt in the calls
    between the defendant's cellular telephone number and those of
    Castro and Stackermann, a juror would have had to infer that
    Stackermann and Castro were involved in the shooting;36 that the
    content of these calls related to the shooting; and that the
    defendant herself was the one making and receiving the calls.
    This latter inference, although reasonable and probable, is
    weakened by testimony from the Commonwealth's witnesses that
    Javier used the defendant's cellular telephone multiple times on
    the day of the shooting.    See 
    id. at 341
    ("the presence of an
    item does not require the presence of its owner").
    With regard to the CSLI evidence, the jury would have had
    to infer, first, that the defendant was in possession of her
    cellular telephone at the time the CSLI was recorded.    As
    mentioned, this inference, while reasonable, is weakened by
    evidence of Javier's use of her device.     Second, they would have
    had to infer, from evidence of transmissions through particular
    cellular sites, that the defendant was at or near the crime
    scene.     In this regard, the Commonwealth focuses on calls to and
    from the defendant's device transmitted through T-Mobile
    36
    See note 
    29, supra
    .
    28
    cellular site 4422, located approximately eight-tenths of a mile
    from the scene, seven minutes before the shooting.   This
    evidence, however, establishes little.   On the day of the
    shooting, twenty-three other calls to and from the defendant's
    telephone number were transmitted through that cellular site,
    none of them at times when the Commonwealth maintains that the
    defendant was near the scene of the shooting.   Indeed, many of
    those calls were made when the Commonwealth apparently agrees,
    as the defendant asserts, that she was at home.
    Similarly, the Commonwealth points to two calls made in the
    minutes immediately after the killing, both of which were
    transmitted through T-Mobile cellular site 4449, the one closest
    to the scene.   This, too, proves little, as records show that
    calls to and from the defendant's number were transmitted
    through that same cellular site six other times on the day of
    the shooting.   The Commonwealth does not claim that, at these
    other times, the defendant was at the scene of the killing, and
    it appears undisputed that two of the calls took place when the
    defendant was at home.
    Moreover, while the Commonwealth's witness testified that
    "[t]ypically, it[ is] the closest cell site [to the cellular
    telephone] that will handle [a] signal," he stated that there
    were "numerous" other factors that affected the determination
    which cellular site would be used.   He also testified that he
    29
    had not investigated what effect such factors might have had in
    this case, that he did not have the engineering expertise to do
    so, and that any knowledge he had on the topic came from working
    with engineers and hearing presentations from them.37
    iii.   Analysis.   Given the totality of the evidence, the
    jury could have inferred that the defendant's vehicle was
    involved in the shooting because it, like the suspect vehicle,
    was a Dodge Caravan.    The jury also might have inferred that the
    defendant's cellular telephone was involved, based on the calls
    to Castro and Stackermann.    The jury were not permitted,
    however, to build further inferences on top of these.   See
    
    Swafford, supra
    at 343. See also Commonwealth v. Mandile, 
    403 Mass. 93
    , 94 (1988) (Mandile) ("No[] conviction [may] rest upon
    the piling of inference upon inference or conjecture and
    37
    While McDonald's testimony appears generally to have been
    admissible, this is not without some doubt with respect to two
    of his opinions. Those opinions -- that calls "typically" are
    transmitted through the closest cellular site, and that a call
    from Calixto's address was unlikely to have been transmitted
    through cellular site 4449 -- were objected to by the defendant
    and may well have required a witness with greater technical
    expertise. See Blank, The Limitations and Admissibility of
    Using Historical Cellular Site Data to Track the Location of A
    Cellular Phone, 18 Rich. J. L. & Tech. 1, 3, 6-7, 20 (2011) (at
    least fourteen factors determine cellular site use; court should
    not "allow[] . . . lay witness to testify to the intra-cell site
    position of a phone user because the testimony requires
    specialized knowledge that relates to the scientific and
    technological features of cell sites"). See also Cherry,
    Imwinkelreid, Schenk, Romano, Fetterman, Hardin, & Beckman, Cell
    Tower Junk Science, 95 Judicature 151, 151 (2012) ("data from a
    single cell phone tower" not adequate to place caller "within a
    mile -- or five miles -- or ten miles -- of the tower").
    30
    speculation"); 
    Mazza, supra
    at 399 (while "[a] fair inference
    may be drawn that the defendant called the victim . . . and
    arranged to meet him" at time of murder, we cannot "further
    infer that the defendant [actually] went" and met victim).
    In other words, the jury were not entitled, on this
    evidence, to infer that, if the defendant's minivan and
    telephone were involved in the killing, the defendant herself
    was, too.     Such an inference is particularly problematic in
    light of evidence that her vehicle and cellular telephone were
    borrowed by Javier at various points on the day of the
    shooting.38    
    Swafford, supra
    at 341-342.   That the defendant also
    had motive and may have displayed consciousness of guilt does
    not "tip the scales" and allow a different conclusion.     See
    
    Swafford, supra
    at 342; 
    Mazza, supra
    398-400 (jury is not
    "permitted to [build] inference upon inference" even where there
    is "evidence of motive and consciousness of guilt" because those
    may not be used to "obscure the fact that the Commonwealth's
    proof failed").
    Ultimately, the facts of this case are similar to those in
    
    Swafford, supra
    at 331, 339, where the defendant was accused of
    having been the driver in a drive-by shooting.     Evidence at
    38
    In 
    Swafford, supra
    341 n.17, the evidence on a similar
    issue showed that the defendant's sister drove an automobile on
    one occasion four months after the shooting. Here, by contrast,
    there is evidence that Javier drove the vehicle on three
    occasions within twenty-four hours of the shooting.
    31
    trial showed that the defendant in that case "had a motive to
    seek retribution" from the victims, 
    id. at 339;
    had spent time
    with the shooter in the hours before the killing, 
    id. at 339-
    340; was the owner of the vehicle used in the shooting, 
    id. at 340-341;
    and had "demonstrat[ed] . . . consciousness of guilt"
    by altering the appearance of his vehicle a few months after the
    shooting.   
    Id. at 342.
      We reversed the conviction because this
    evidence "established that [the defendant] had a motive to
    commit the shooting, and that he could have been the driver,
    but . . . [did] not establish beyond a reasonable doubt that he
    was in the driver's seat."39   
    Id. at 343.
    39
    The Commonwealth argues that the evidence is stronger
    here than in Swafford because, in that case, there was no video
    recording of the suspect vehicle and no evidence linking the
    defendant's cellular telephone to the crime. In that case,
    however, there was other evidence that is lacking here:
    witnesses who described the gender and race of the driver (here,
    there was no evidence as to either), who identified the
    passenger-shooter by name (here there was no direct evidence of
    the identities of the passenger-coventurers and the video
    recording did not show any facial features), and who described
    the color of the suspect vehicle's exterior, as well as the tint
    of its windows (here the black-and-white video recording showed
    only the vehicle's make and model). See 
    id. at 331.
    Moreover,
    as 
    noted, supra
    , the indications were more substantial here than
    in Swafford that someone else, namely Javier, used the
    defendant's vehicle and telephone on the day of the shooting.
    See note 
    34, supra
    .
    The Commonwealth also contends this case is comparable to
    Commonwealth v. Henderson, 
    47 Mass. App. Ct. 612
    (1998), where
    the Appeals Court sustained convictions of assault with intent
    to murder on a theory of joint venture, and assault and battery
    by means of a dangerous weapon, under assertedly similar
    circumstances. There, however, there was direct evidence that
    32
    Here, too, the evidence shows that the defendant had motive
    to kill the victim, that her possessions (vehicle and cellular
    telephone) were involved in the killing, and that she displayed
    consciousness of guilt.   This establishes that she could have
    been the driver of the suspect vehicle -- indeed, that this was
    more likely than not to have been the case -- but it does not
    allow that conclusion to be drawn beyond a reasonable doubt.40
    b.   Mental state.   As mentioned, the defendant was
    convicted on the basis that she knowingly, and with deliberate
    premeditation, aided the coventurers in the commission of
    murder, i.e., that she was the perpetrators' "joint venturer."
    See, e.g., Commonwealth v. Britt, 
    465 Mass. 87
    , 96-97 (2013).
    In order to convict the defendant on this theory, the
    Commonwealth was required to prove, beyond a reasonable doubt,
    not only that the defendant drove the suspect vehicle, but that
    the killing took place two minutes after the defendant's quarrel
    with the victim, that the defendant drove the suspect vehicle,
    and that the shooter brandished a gun in view of the defendant.
    
    Id. at 612-613.
         40
    Cf. Commonwealth v. Morris, 
    422 Mass. 254
    , 255, 256, 259
    (1996) (defendant's fingerprint found on mask dropped at scene
    by one of five perpetrators, witness stated "that the intruder
    wearing the . . . mask might have resembled the defendant,"
    defendant's mother owned "vehicle that resembled . . . one seen
    leaving the crime scene," and defendant had "association with
    two people who could have been found to" be perpetrators; while
    "jury could have reasonably inferred that the defendant had been
    involved with the [the perpetrators] and that he might have been
    one of the intruders," "evidence [did] not . . . warrant such a
    conclusion beyond a reasonable doubt").
    33
    she knew her passengers intended to kill the victim and that she
    shared their intent.    See Commonwealth v. Nolin, 
    448 Mass. 207
    ,
    217 & n.11 (2007).    While such "[m]atters . . . are rarely
    proved by direct evidence and are most often proved
    circumstantially" (citation omitted). Commonwealth v. Rosario,
    
    83 Mass. App. Ct. 640
    , 643 (2013), the circumstantial evidence
    may not consist solely of a "show[ing] that the defendant . . .
    was present when the crime was committed," even if that showing
    is supplemented by evidence that the defendant "knew about [the
    crime] in advance."    Commonwealth v. Zanetti, 
    454 Mass. 449
    , 470
    (2009) (Appendix) ("Presence alone does not establish a
    defendant's knowing participation in the crime, even if a person
    knew about the intended crime in advance and took no steps to
    prevent it").   Rather, there must be some additional proof that
    the defendant "consciously . . . act[ed] together [with the
    principals] before or during the crime with the intent of making
    the crime succeed."    
    Id. The Commonwealth
    points to five indications that the
    defendant knew of and shared the coventurers' lethal intent.
    First, the defendant had motive.   See Commonwealth v. Simpkins,
    
    470 Mass. 458
    , 461 (2015) ("evidence of motive" helps
    "demonstrate the requisite intent").   Second, the defendant
    planned her visit to Calixto's house hours before the killing,
    suggesting, perhaps, intent to use the visit as an alibi.
    34
    Third, multiple calls were exchanged between the defendant's
    cellular telephone and those of Castro and Stackermann in the
    hours before the shooting, suggesting that those three people
    were planning the crime.   Fourth, the perpetrators carried out
    the shooting immediately after leaving the suspect vehicle,
    suggesting that the driver dropped them off knowing their
    purpose.   Contrast 
    Mandile, supra
    at 101 ("murder here occurred
    after the passenger had [left vehicle and] been alone with the
    victim for close to fifteen minutes" such that "no shared intent
    can be drawn from [defendant's] knowledge of the circumstances"
    [quotation and citation omitted]).   Finally, the driver of the
    suspect vehicle did not immediately drive away after dropping
    off the perpetrators, but instead turned onto a side street,
    executed a three-point turn, and then headed back toward the
    main road to continue on the original course.   This maneuver,
    the Commonwealth argues, had the purpose of "buy[ing] some time"
    until the killing could be completed, so that the driver could
    retrieve the perpetrators.41
    This evidence does not suffice to establish beyond a
    reasonable doubt that the defendant knew of and shared the
    41
    Evidence of consciousness of guilt is, appropriately, not
    cited to prove intent. Commonwealth v. Lowe, 
    391 Mass. 97
    ,
    108 n.6, cert. denied, 
    469 U.S. 840
    (1984) (consciousness of
    guilt evidence, "while relevant to the issue whether a criminal
    homicide was committed, is not evidence of malice
    aforethought").
    35
    coventurers' intent.   First, the Commonwealth's arguments
    require the "piling of inference upon inference."   See 
    Swafford, supra
    at 343.   They take as initial assumptions both that the
    defendant drove the suspect vehicle and that she participated in
    the calls with Castro and Stackermann -- assumptions that, as
    
    discussed supra
    , are themselves based on a series of
    "inferential leaps" -- and then ask that the jury be allowed to
    draw further inferences on the basis of those assumptions.
    Second, even assuming, as the Commonwealth contends, that
    the defendant knowingly participated in the attack, there was no
    evidence that she knew of or shared the coventurers' intent that
    the attack be deadly, as required for a conviction of
    deliberately premeditated murder by way of joint venture.     The
    fact that the attack ended up being deadly does not, by itself,
    prove that the defendant intended this result.   See Commonwealth
    v. Walsh, 
    407 Mass. 740
    , 742, 743 (1990) (minutes before attack
    on victim, defendant warned "there was going to be trouble," and
    defendant and coventurer then spoke privately "for a few
    minutes," apparently planning attack; "jury could only have
    speculated" based on this evidence that defendant "knew that
    [coventurer] intended to kill" victim); 
    Mandile, supra
    (insufficient evidence where defendant drove shooter to scene,
    knew shooter was armed, drove getaway vehicle, and attempted to
    36
    conceal crime, but where there was no indication that he knew
    shooter intended to kill victim).
    Where a defendant is tried on the theory that she committed
    deliberately premeditated murder by way of a joint venture,
    proof that the defendant knew of and shared her coventurers'
    lethal intent is crucial, and may come from a variety of
    sources.   In this case, however, no evidence from any such
    sources was introduced.   In some cases, there is direct evidence
    that a defendant intended that the victim be killed.   See, e.g.,
    Commonwealth v. Woods, 
    466 Mass. 707
    , 711, 713-714, cert.
    denied, 
    134 S. Ct. 2855
    (2014) (defendant, who was not shooter,
    had made "threats to shoot [or kill] the victim"); Commonwealth
    v. Marrero, 
    459 Mass. 235
    , 248 (2011) ("defendant said, 'I'm
    going to kill you'").   In other cases, knowledge and intent are
    inferred from a defendant's actions, if those actions, by their
    very nature, demonstrate lethal intent.   This often occurs when
    a defendant brings a gun to the scene of the killing, but does
    not herself fire the fatal shot.    See, e.g., Commonwealth v.
    Tavares, 
    471 Mass. 430
    , 432-433 (2015) (defendant brought gun to
    scene, chambered bullet, and pointed it at victim's companions;
    fatal shots fired by coventurer); Commonwealth v. Rosa, 
    468 Mass. 231
    , 233-234 (2014) (defendant, one of three shooters,
    seen holding and firing gun at victim); Commonwealth v. Keo, 
    467 Mass. 25
    , 29-30, 39 (2014) (defendant supplied gun, but "no one
    37
    saw and could identify the [actual] shooter"); Commonwealth v.
    Britt, 
    465 Mass. 87
    , 88-89 (2013) (defendant brought gun to
    scene and fired); Commonwealth v. Beneche, 
    458 Mass. 61
    , 70-71
    (2010) (before killing, defendant told victim "goodbye forever";
    defendant participated in suffocating victim; not clear if
    deadly force applied by him or coventurer).
    In yet other cases, intent has been inferred from evidence
    that a defendant (a) observed a coventurer demonstrate or
    express lethal intent (e.g., by producing a gun) and
    (b) thereafter took some step to help carry out that intent.
    See Commonwealth v. Longo, 
    402 Mass. 482
    , 486 (1988) ("jury may
    infer the requisite mental state [for a joint venture] from the
    defendant's knowledge of the circumstances and subsequent
    participation in the offense" [quotation and citation omitted]).
    For example, in Commonwealth v. Newson, 
    471 Mass. 222
    , 226-228
    (2015), the defendant saw his coventurer carry and use a gun
    earlier on the night of the killing, and thereafter drove the
    coventurer to the site of the fatal shooting.   Similarly, in
    Commonwealth v. Reaves, 
    434 Mass. 383
    , 386-387, 392-393 (2001),
    the defendant was present for the planning of a drive-by
    shooting while guns were on a nearby couch, rode in the vehicle
    with the shooters during the killing, and assisted in disposing
    of the weapons thereafter.   See Commonwealth v. Norris, 
    462 Mass. 131
    , 133-135, 140 (2012) (defendant saw that coventurer
    38
    had gun, made "move . . . that the jury reasonably could have
    inferred was designed to allow [coventurer] to take a shot" at
    victim, and kicked victim in face after victim was shot).
    Here, no similar types of evidence were introduced.     There
    was no direct evidence of the defendant's mental state.     Nor was
    there was any indication that the defendant acted in a way
    inherently demonstrating lethal intent.    Finally, there was no
    evidence that she heard the perpetrators express lethal intent,
    or that she saw them do anything to demonstrate such intent
    (e.g., displaying weapons) before they were dropped off at the
    scene of the shooting.42   On this evidence, even assuming that
    the defendant was the driver, and even assuming further that she
    was involved in planning an attack of some sort on the victim,
    it cannot be said beyond a reasonable doubt that she knew of and
    42
    The jury had no information,   for example, whether the
    coventurers displayed weapons while   in the vehicle. Nor could
    an inference of such knowledge have   been drawn from the
    conversations alleged to have taken   place between her, Castro,
    and Stackermann, since the contents   of those conversations were
    not before the jury.
    Nonetheless, the concurrence argues that the existence of a
    strong motive was a "sufficient basis," standing alone, "on
    which the jury could infer that [the defendant] shared the
    murderous intent of her passengers." Post at    . The presence
    of motive, however, merely strengthens the inference that the
    defendant intended to participate in an attack of some sort. It
    does not indicate that the defendant knew of and shared her
    coventurers' intent that the attack be deadly.
    39
    shared her passengers' lethal intent.43    See Commonwealth v.
    Simpkins, 
    470 Mass. 458
    , 461-462 (2015) (evidence that defendant
    helped shooters before killing and was accessory after fact did
    not necessarily imply "knowing participation . . . in the
    shooting itself or in the planning thereof").
    3.    Conclusion.   In sum, while the evidence at trial
    established the possibility, perhaps even the probability, that
    the defendant was the driver of the suspect vehicle, and that
    she may have shared the intent that the victim be killed, it did
    not allow a rational juror to so conclude beyond a reasonable
    doubt.    Accordingly, the judgment is reversed, the verdict is
    set aside, and the case is remanded to the Superior Court for
    entry of a judgment for the defendant.
    So ordered.
    43
    Similarly, in Commonwealth v. Mandile, 
    403 Mass. 93
    , 100
    (1988), we held that there was insufficient evidence of intent
    where "the defendant (1) participated in stealing guns to aid in
    the commission of some future offense; (2) was present during
    the commission of the murder; (3) knew the passenger was armed,
    (4) was the driver of a getaway car; and (5) attempted to
    conceal the crime through both the disposal of the murder weapon
    and inconsistent statements to the police." On this evidence,
    it was not "shown that [the defendant] intentionally assisted
    [the shooter] in the commission of the crime and that he did
    this, sharing with [the shooter] the mental state required for
    that crime" (citation omitted). 
    Id. at 101.
         CORDY, J. (concurring in part and in the judgment).   I
    agree that the evidence regarding whether the defendant was the
    driver of the Dodge Caravan minivan that transported and dropped
    off four individuals (at least two of whom were armed with
    firearms) across the street from the victim's parked minivan,
    where seconds later they murdered him, may not have been
    sufficient to allow a rational jury to conclude that fact beyond
    a reasonable doubt.   Consequently, I concur in the reversal of
    her conviction.   I disagree, however, with the court's further
    and unnecessary conclusion, that even were the evidence adequate
    on that point, there was not a sufficient basis on which the
    jury could infer that she shared the murderous intent of her
    passengers.1
    In my view, the evidence at trial firmly established an
    intense animosity between the defendant and her boy friend (one
    of the shooters) and the victim, an animosity that was in part
    related to money owed to the defendant by the victim -- a debt
    that was overdue and contentious, and that had been the subject
    of "loud conversation" between the boy friend and the victim on
    the day of the shooting.   Indeed, on that same day, the
    defendant and her boy friend had at least four hostile
    1
    I am aware that, of the four defendants charged in this
    murder, only two were convicted: Joel Javier (murder in the
    first degree) and Yoshio Stackermann (murder in the second
    degree).
    2
    encounters with the victim.    At approximately 2 A.M., the victim
    knocked the boy friend's tooth out in a fight in the presence of
    the defendant.    The boy friend pulled out a knife during the
    fight, and after getting punched and losing his tooth, threw his
    cellular telephone at the victim.     He then told the defendant
    that it "was not going to stay like that," after which he drove
    away.    Later that day, while the defendant was driving her boy
    friend around, the victim drove his minivan head on toward her
    in an attempt to drive her vehicle off the road.     Still later
    that afternoon, the victim showed up at the boy friend's house
    and taunted the defendant and the boy friend's mother -- saying
    he was "carrying [her boy friend's] tooth" and would sell it
    back "for a hundred bucks."
    This obviously did not sit well with either the boy friend
    or the defendant, and between 2 P.M. and 5:30 P.M., six
    telephone calls were made on the defendant's cellular telephone
    to Yoshio Stackermann to round up some friends.     Between 5:41
    P.M. and 5:57 P.M., the defendant (assuming it was she) was
    driving the boy friend and his three-man posse (in her mother's
    vehicle) in search of the victim.     When they observed him in his
    parked vehicle, the defendant stopped the vehicle across the
    street.    The four passengers jumped out and within seconds fired
    at least twelve shots at the victim and his vehicle, killing
    him.    They then fled on foot.   The defendant drove around the
    3
    block, picked up her boy friend, and proceeded on to her
    brother's girl friend's house where they had planned to visit.
    In sum, if the evidence had been sufficient to establish
    her role as the driver, it would have been sufficient to
    establish her role as a joint venturer in the murder plot.