Mass shootings in U.S. history

Published On: Jul 20 2012 09:20:30 AM CDT   Updated On: Jun 13 2016 12:16:38 PM CDT

With 49 victims, Sunday's terrorist attack at an gay nightclub in Orlando now ranks as America's most deadly mass shooting. Take a look at some of the other worst mass shootings in U.S. history.

Aaron Alexis, Navy Yard suspect
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FBI.gov

Sept. 16, 2013: Authorities say military contractor Aaron Alexis gunned down 12 people and wounded eight others at the Washington Navy Yard before he was killed.

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