Top Shooting Deaths By SteelerForreel Sep 6, 1949 Camden NJ Veteran Shooting Army veteran killed 13 people, 3 of them children Sep 1, 1966 University of Texas 17 Killed Jul 8, 1984 San Ysidiro Mcdonalds Massacre 24 Killed Aug 20, 1986 Oklahoma Post Office 15 Killed Apr 20, 1990 Columbine High School 15 Killed Apr 16, 2007 Virginia Tech 33 Killed Apr 3, 2009 NY Immigration Center Nov 5, 2009 Texas Fort Hood Jul 20, 2012 CO Aurora Theater 12 Killed Dec 14, 2012 Sandy Hook Elementary 26 Killed