Vernazzaro, who moments before the fight had taken off his shirt, died from a stab wound to the heart, prosecutors said during a hearing last week. It was one of five stab or slash wounds to Vernazzaro, who was also struck at least twice with the aluminum bat.
Martin, who pleaded guilty to manslaughter last week and accepted the 12- to 15-year sentence from Whitehead, and Christensen were teenagers aging out of the foster care system and living at Blaine House, a residential program nearby, along with a third teen, Melissa Hicks, then 17. Hicks and Christensen had once dated and remained good friends.
Hicks is facing a separate trial on charges that she acted as an accessory after the killing.
On the day of the killing, Vernazzaro had called Hicks, touching off a series of exchanges that led to the challenge to fight, prosecutors say.
Prosecutor Kristen Buxton argued that by Buso’s logic, any time a larger person was killed by a smaller one with a weapon, the smaller person could claim self-defense.
And when Buso suggested that in a fight “between a 300-pound man and a 75-pound woman, wouldn’t the woman be entitled to use a knife to defend herself?”
“If she approached him with a knife, she’s got a (legal) problem,” the judge responded.
Buso suggested “there have to be circumstances where the vastly superior size” of an alleged victim ought to be taken into account.
The dynamics of the situation changed when Vernazzaro got control of the bat from Martin, Buso said.
Buso is also seeking to admit evidence of past assault charges against Vernazzaro, as well as information about his involvement in amateur wrestling, information Buxton suggested was not only old, but irrelevant to what happened the night of the killing.
Christensen, who is expected to take the stand, brought the knife and displayed it in hopes that it would deter Vernazzaro from fighting, Buso told the judge.
During his questioning by police shortly after the incident, Christensen insisted that he never stabbed Vernazzaro, suggesting that the fatal wound came from the bigger man falling on Christensen’s knife.
Courts reporter Julie Manganis can be reached at 978-338-2521, via email at firstname.lastname@example.org or on Twitter @SNJulieManganis.