Transit Police report arresting a Dorchester man they say repeatedly hit another man in the face with some sort of blunt object on a Red Line train Friday night.
Police say David Washington-Halfkenny, 40, had been "aggressively pacing" up and down a car around 8:50 p.m. when, without provocation, "struck the victim in his face/head numerous times with a blunt object" as the train sat at JFK/UMass.
Police say when officers arrived, Washington-Halfkenny was "standing over the victim and shouting," with blood streaming "profusely from [the victim's] face and head."
After pulling him away, they arrested him on a charge of assault and battery with a dangerous weapon. The victim was taken to a local hospital for treatment.