Police say 17-year-old killed a sixth grader and wounded five in Iowa school shooting

A man and children leave the McCreary Community Building after being reunited following a shooting at Perry High School, Thursday, in Perry, Iowa. (AP Photo/Charlie Neibergall)

PERRY, Iowa — A 17-year-old opened fire at a small-town Iowa high school before classes resumed on the first day after the winter break, killing a sixth-grader and wounding five others Thursday as students barricaded in offices, ducked into classrooms and fled in panic.