Highway patrol investigators are still investigating a head-on collission near Escalon last evening.
18-year-old Brice Daniel Wells of Tuolumne City died when his car veered into the wrong lane and an oncoming Toyota. His 14-year-old sister Emilee and 18-year-old Marissa Taylor were also pronounced dead at the scene. 17-year-old Brian Brannon of Twain Harte is being treated for major injuries in Modesto.
70-year-old Margie Arthur of Manteca was driving the Toyota. She was also killed instantly.