A Bed-Stuy teen has been convicted of second-degree murder for pulling out a .357 Magnum revolver on a crowded city bus during rush hour and shooting an innocent 39-year-old man in the back of the head, killing him.

Kahton Anderson, 15, opened fire on three rival gang members who were also on the bus. According to trial testimony, on the afternoon of March 20, 2014, Anderson, a Stack Money Goons gang member, was on a southbound B15 bus when three members of the rival Twan Family gang boarded. Anderson, who was 14 at the time, pulled out a revolver from his backpack and opened fire.

Angel Rojas, 39, who was married and the father of an 8-year-old daughter and a 12-year-old son, was sitting in a forward facing seat on the bus, talking on a cellphone. He was struck in the back of the head. After shooting Rojas, the defendant ran off the bus after his rivals and continued to shoot, emptying his gun. Rojas was pronounced dead shortly thereafter at Woodhull Hospital.

Anderson was convicted of one count of second-degree murder, one count of second-degree attempted murder, one count of first-degree attempted assault, one count of first-degree reckless endangerment and one count of first-degree criminal use of a firearm after a jury trial. The judge has set sentencing for Feb. 18. Anderson faces 15 years to life in prison.