Top Shooting Massacres By katiefrizzell Aug 1, 1966 University of Texas 17 Killed Period: Aug 1, 1966 to Dec 14, 2012 Top Shooting Massacres Jul 18, 1984 San Ysidro McDonald's Massacre 24 Killed Aug 20, 1986 Oahklahoma Post Office Shooting 15 Killed Apr 20, 1990 Columbine High School 15 Killed Apr 16, 2007 Virginia Tech 33 Killed Apr 3, 2009 NY Immigration Center 13 Killed Nov 5, 2009 Texas Fort Hood Shooting 13 Killed Jul 20, 2012 CO Aurora Theater 12 Killed Dec 14, 2012 Sandy Hook Elementary 26 Killed
