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Deadly school shootings in U.S. history

Published On: Apr 02 2012 04:44:44 PM CDT   Updated On: Oct 21 2013 01:28:32 PM CDT

With today's deadly school shooting in Nevada, look back at other major school shootings in U.S. history.

University of Iowa
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Nov. 1, 1991: Gang Lu, 28, a graduate student in physics from China, opened fire in two buildings on the University of Iowa campus. Five university employees were killed and two other people were wounded. The student fatally shot himself.

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