Recent US Mass Shootings
- September 2013: Gunman kills 12 people at a naval facility in Washington before dying in a gun battle with police
- December 2012: Gunman kills 26 adults and children at Sandy Hook Elementary School in Connecticut before killing himself
- July 2012: Gunman kills 12 people during showing of Batman movie in Colorado
- January 2011: Gunman kills six people and wounds U.S. Representative Gabrielle Giffords in Arizona
- November 2009: U.S. Army psychiatrist kills 13 people at Fort Hood, Texas
- April 2007: Virginia Tech student kills 32 people before committing suicide
- April 1999: Two Columbine High School students kill 12 students, one teacher and themselves in Colorado