BOSTON (AP) -- A Boston man and his 16-year-old son are facing murder charges for what prosecutors call an unprovoked attack on another man on a city street.
Elias Sanchez, 43, and Angel Sanchez, 16, beat and stabbed Edwin Santos to death outside a South Boston store at about 5 p.m. Sunday, prosecutors said.
Both were held without bail at their arraignments Monday, the teen in court, the older man in the hospital, where he is recovering from stab wounds. Not guilty pleas were entered on their behalf.
The teen's name was made public because he was arraigned in adult court due to the serious nature of the charges.
The suspects and the victim were "well-known to each other," Assistant District Attorney Mark Zanini said, but the exact motive remains under investigation.
Angel Sanchez's attorney said it was noteworthy that prosecutors did not mention that both Angel and Elias Sanchez also were stabbed, and that his client was not arrested at the scene.
The boy has "never been before the court at any time on any charge," J.W. Carney Jr. said.
Santos, 29, and his girlfriend were standing outside the store when the Sanchezes attacked, prosecutors said. The older Sanchez was armed with a metal baton, his son with a knife, authorities said.
A third man joined in, but his identity remains under investigation.
Santos' girlfriend, armed with a knife, tried to intervene, but the suspects continued to beat and stab the victim "until the attackers grew tired of it," Zanini said.
They then fled on foot.
Santos was taken to Boston Medical Center where he died of blunt trauma and stab wounds, prosecutors said.