Deadly school shootings in U.S. history

Published On: Apr 02 2012 04:44:44 PM CDT   Updated On: Nov 19 2014 03:28:22 PM CST

Look back at major school shootings in U.S. history.

Northern Illinois University, shooting
4 / 26
Kamil Krzaczynski / Reuters

Feb. 14, 2008: A former Northern Illinois University graduate student walked onto the stage of a science lecture hall and opened fire, injuring at least 15 students. Six students were killed in the attack before the shooter took his own life.

Upload Photos / Videos