America's gun culture has led to a series of mass murders
October 1, 2017: Gunman Stephen Paddock opened fire on an outdoor music festival on the Las Vegas Strip from the 32nd floor of a hotel, killing 58 people and wounding 500. Swat teams stormed his room and he killed himself.
June 12, 2016: Omar Mateen opened fire at an Orlando, Florida, nightclub, killing 49 people. Mateen was later killed in a shootout with police.
February 25, 2016: Cedric Ford (38) killed three people and wounded 14 others at a lawnmower factory where he worked in the central Kansas community of Hesston. The local police chief killed him during a shootout.
February 20, 2016: Jason Dalton (45) is accused of randomly killing six people and wounding two others during a series of attacks in Kalamazoo, Michigan. He faces murder charges.
December 2, 2015: Syed Rizwan Farook (28) and Tashfeen Malik (27) opened fire at a social services centre in San Bernardino, California, killing 14 people and wounding 20. They died hours later in a shootout with police.
October 1, 2015: A shooting at a college in Roseburg, Oregon, left 10 people dead and seven wounded. Shooter Christopher Harper-Mercer (26) killed himself.
June 17, 2015: Dylann Roof (21) shot and killed nine African-American church members during a Bible study group in a church in Charleston, South Carolina. Police contend the attack was racially motivated. Roof has been sentenced to death for the shootings.
May 23, 2014: A community college student, Elliot Rodger (22), killed six people and wounded 13 in shooting and stabbing attacks in the area near the University of California, Santa Barbara, campus. Authorities said he shot himself after a gunbattle with deputies.
September 16, 2013: Aaron Alexis, a civilian contractor, shot 12 people to death at the Washington Navy Yard before he was killed in a police shootout.
July 26, 2013: Pedro Vargas (42) went on a rampage at his Hialeah, Florida, apartment building, gunning down six people before officers fatally shot him.
December 14, 2012: In Newtown, Connecticut, a 20-year-old man entered Sandy Hook Elementary School and used a semi-automatic rifle to kill 26 people, including 20 first-graders and six adult school staff members. He then killed himself.