Deadly school shootings in U.S. history

Published On: Apr 02 2012 04:44:44 PM CDT   Updated On: Jun 10 2014 11:18:04 AM CDT

With Tuesday's school shooting in Oregon, look back at other major school shootings in U.S. history.

Northern Illinois University, shooting
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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.

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