A listing of recent deadly mass shootings in the United States:
October 2017: Gunman kills 58 people at a country music concert in Las Vegas, Nevada.
June 2016: Gunman kills 49 people at Pulse, a gay nightclub in Orlando, Florida.
December 2015: Couple kill 14 after storming California social services agency, are killed in gun battle with police.
November 2015: Gunman kills three after storming Colorado Planned Parenthood clinic; is arrested after hours-long standoff with police.
October 2015: Gunman kills nine at Oregon community college before being killed in gun battle with police.
July 2015: Gunman kills five at U.S. Navy Reserve center in Tennessee before being shot and killed by police.
June 2015: Gunman kills nine people in South Carolina church before fleeing, is captured the following day, awaiting trial.
May 2015: Nine killed in shootout between rival motorcycle clubs and police at Texas restaurant.
October 2014: Teenage gunman kills four teens, two of whom are his cousins, in Washington state high school before committing suicide.
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.
August 2012: Gunman kills six people at Sikh Temple in Wisconsin before committing suicide after being shot by police.
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.
October 2006: Gunman kills five girls in Pennsylvania Amish school before committing suicide.
January 2006: Ex-postal worker kills eight before committing suicide in California in rare case of female shooter.
April 1999: Two Columbine High School students kill 12 students, one teacher and themselves in Colorado.
November 1991: Gunman kills four University of Iowa faculty members and a student before committing suicide.
October 1991: Gunman crashes pickup truck into Texas cafe, then begins shooting; kills 23 people before committing suicide.
August 1986: Gunman kills 14 postal workers in Oklahoma before committing suicide.
July 1984: Gunman kills 21 people at a McDonald's California before being killed by police.