A man was slashed in the the head by a maniac with a large knife while riding the subway in Brooklyn — and the suspect was arrested when passengers flagged down cops at the next stop, cops said.
The victim, 67, was on a northbound C train heading toward Jay Street around 6 p.m. Friday when the stranger cut him on the left side of his head in what appears to have been an unprovoked attack, the NYPD said.
Straphanger, 61, punched, slashed on NYC subway train in random attack: NYPD
Passengers flagged down officers when the train pulled into the Jay Street station, a police spokesman said. The knife was recovered on the scene, cops said…