Rylee Britton, 18; Ainsley Johnson, 8; Alma Buhnerkempe, 7; and Kathryn Corley, 7, were killed as a driver crashed into the building of school camp program.

Three children and a teenager were killed and others were injured when a car drove through an after-school building in a small city outside Springfield, Illinois, but authorities said Tuesday it likely was not a targeted attack.