A gunman dressed in black stepped from behind a curtain at the front of a large lecture hall at Northern Illinois University on Thursday and shot 21 people, five of them fatally, then shot and killed himself, said university president John Peters.
Four died at the scene, including the shooter, and two later died at the hospital, he said.
At least 22 people, including a graduate student who was teaching an ocean sciences class, were shot, Peters said. 
Read full article »
CNN's Kevin Bohn contributed to this report.