A 16-year-old boy who was being driven to a hospital by friends after he was shot at a San Jose party died because police officers stopped the vehicle and then failed to provide medical help, the boy's father said in a federal civil rights lawsuit filed Thursday.

Gerardo Jorge Medina was struck in the stomach by a stray bullet fired at a party on the 10300 block of Murtha Road in eastern San Jose on June 13, 2013, according to the suit filed in U.S. District Court in San Francisco.