TOWNVILLE, S.C. (AP) — A volunteer firefighter stopped a teenager who shot two students and a teacher outside a South Carolina elementary school after killing his father at their home, authorities said.Anderson County Sheriff John Skipper said the shooter was apprehended Wednesday afternoon outside rural Townville Elementary School before he could get inside the building.Firefighter Jamie Brock, a 30-year veteran of the Townville Volunteer Fire Department down the [...]