Mass shootings in U.S. history

Published On: Jul 20 2012 09:20:30 AM CDT   Updated On: Apr 03 2014 07:39:55 AM CDT

A gunman opened fire at the Fort Hood military post in Texas on Wednesday, killing three people and wounding 16 before committing suicide. Take a look at some of the worst mass shootings in U.S. history.

12 / 25
Fred Prouser/Reuters

Dec. 24, 2008: Bruce Jeffrey Pardo, 45, dressed up in a Santa suit and showed up at a Christmas party at his ex-wife’s parents’ house in Covina, Calif., where he shot nine people to death and then burned the house. He later killed himself.

Upload Photos / Videos