August 5th, 2012Army veteran Wade Michael Page kills five men and one woman and wounds three other people, including a police officer, before taking his own life at the Sikh Temple of Wisconsin.
July 20th, 2012At least 12 people are killed when a gunman enters a cinema in Aurora, Colorado, releases a canister of gas and then opens fire during the opening night of the Batman movie The Dark Knight Rises. James Holmes, a 24-year-old former graduate student at the University of Colorado, has been charged.
March 11th, 2012Sixteen Afghan villagers, including nine children, are killed in a pre-dawn attack. Army prosecutors have charged Sgt Robert Bales (39).
July 22nd, 2011Confessed mass killer Anders Behring Breivik kills 77 in Norway in twin attacks: a bombing in Oslo and a shooting massacre at a youth camp outside the capital.
November 5th, 2009Thirteen soldiers and civilians are killed and more than 20 people are wounded when army psychiatrist Maj Nidal Hasana opens fire at the Soldier Readiness Processing Centre at Fort Hood, Texas.
April 30th, 2009Farda Gadyrov (29) kills 12 people at the prestigious Azerbaijan State Oil Academy in the capital, Baku, before killing himself as police close in.
March 10th, 2009Michael McLendon (28) kills 10 people – including his mother, four other relatives, and the wife and child of a local sheriff's deputy – across two rural Alabama counties, and then kills himself.
September 23rd, 2008Matti Saari (22) walks into a vocational college in Kauhajoki, Finland, and opens fire, killing 10 people and burning their bodies with firebombs before killing himself.
November 7th, 2007After revealing plans for his attack in YouTube postings, Pekka-Eric Auvinen (18) kills eight people at his high school in Tuusula, Finland.
April 16th, 2007Seung-Hui Cho (23) kills 32 people and himself on the Virginia Tech campus.
April 26th, 2002Robert Steinhaeuser (19), who had been expelled from school in Erfurt, Germany, kills 13 teachers, two former classmates and policeman, before taking his own life.
April 20th, 1999Students Eric Harris (18) and Dylan Klebold (17) opened fire at Columbine High School in Littleton, Colorado, killing 12 classmates and a teacher and wounding 26 others before killing themselves.
April 28th, 1996:Martin Bryant (29) shoots 20 people dead in a cafeteria in the seaside resort of Port Arthur in Tasmania, Australia. Driving away, he kills 15 others. He was captured and imprisoned.
March 13th, 1996Thomas Hamilton (43) kills 16 kindergarten children and their teacher at a primary school in Dunblane, Scotland, then takes his own life.
October 16th, 1991George Hennard opens fire at a cafeteria in Killeen, Texas, killing 23 people before taking his own life. Twenty others were wounded.
June 18th, 1990James Edward Pough shoots people at random in a General Motors Acceptance Corp office in Jacksonville, Florida, killing 10 and wounding four, before taking his own life.
December 6th, 1989Marc Lepine (25) bursts into Montreal's École Polytechnique college, killing nine women and then himself.
August 19th, 1987Michael Ryan (27) kills 16 people in Hungerford, England, then shoots himself.
July 12th, 1976Edward Charles Allaway, a custodian in the library of California State University, shoots dead seven colleagues.
August 20th, 1986Pat Sherrill (44), a postal worker who was about to be fired, shoots 14 people at a post office in Edmond, Oklahoma. He then kills himself.
July 18th, 1984James Oliver Huberty, an out-of-work security guard, kills 21 people in a McDonald's restaurant in San Ysidro, California. A police marksman kills Huberty.
August 1st, 1966Charles Whitman opens fire at the University of Texas at Austin, killing 16 people and wounding 31. – (AP )