The California Highway patrol is investigating a collision where a Waterford teenager was killed when a Turlock man ran a red light. The deceased has been identified as 17-year-old Daniel Casillas, who was driving a 2008 Ford Mustang at the time of the collision. The collision from June 16 also left Ivan Gomez, 17, of Waterford with minor injuries and 13-year-old Ricky Chavez, 13, of Waterford with moderate injuries, according to the CHP. The driver of the 2004 Lexus that struck the three teens was identified as Matthew Sullivan, 40, of Turlock.