Indiana State police say three teenagers killed when two pickup trucks collided in southeastern Indiana had left a school function where they were supposed to remain the entire school day. The six South Ripley High School students riding in the two trucks had been excused from school to attend an Indiana FFA Association event at a rural church near Versailles. Police say the trucks collided shortly after 9:30 a.m. Thursday after both drivers ran a four-way stop. One truck hit the other broadside. Both trucks went off the road and traveled about 100 feet into a cornfield. Three other students riding in the truck were being treated at University Hospital in Cincinnati.