Updated with names.
Ronaldo Cepeda, 16, of Dorchester, was arraigned today on charges he stabbed Mason Raymond, 17, to death yesterday at the Jackson Square T station.
Raymond, of Hyde Park, died around 4:30 a.m. today, of a single stab wound to the heart, the Suffolk County District Attorney's office says. It provided this account:
Assistant District Attorney Amy Galatis of the DA’s Homicide Unit told [Roxbury Municipal Court] Judge Paul McManus that Cepeda got off a bus and sat down on a bench outside the MBTA station’s turnstiles at about 3:20 yesterday afternoon. A short time later, Raymond entered through a nearby door.
The two, who knew each other, spoke briefly but the words soon escalated to fisticuffs. They separated for a moment, during which Cepeda allegedly produced a knife but held it behind him so Mason could not see it. When they engaged again, Cepeda stabbed Mason.
Boston Police report arresting Cepeda around 2 a.m. at his home in Dorchester.