Massacres Since 1900

April–May 1909	Adana Province, Anatolia,Ottoman Empire	Adana massacre	15,000–30,000	In April 1909, a religious-ethnic clash in the city of Adana, amidst governmental upheaval, resulted in a series of anti-Armenian pogroms throughout the district, resulting in an estimated 15,000 to 30,000 deaths.[123][124][125][126][127]
January 1923	Rosewood, Florida, United States	Rosewood Massacre	8	Several days of violence by white mobs, ranging in size up to 400 people, resulted in the deaths of six blacks and two whites and the destruction of the town of Rosewood, which was abandoned after the incident.[136]
February 14, 1929	Chicago, Illinois, United States	Saint Valentine's Day massacre	7[137]	Al Capone's gang shot rival gang members and their associates.[138]
August 1933	Iraq	Simele massacre	3,000[146]	Arabs and Kurds killed 3,000 Assyrian men women and children.[146] The massacre amongst other things included rape, cars running over children and bayoneting pregnant women and children.[146]
March 26, 1942	Lari near Nairobi, Kenya	Lari Massacre	~150	About 150 Kikuyu were killed by fellow tribesmen.[170][171]
August 1, 1966	Austin, Texas, United States	University of Texas massacre	16	University of Texas was the site of a massacre by Charles Whitman, who killed his mother and wife at their homes before killing 14 and wounding 32 others at the University atop the university tower before the police killed him.
November 18, 1978	Guyana	Jonestown People's Temple massacre	918	[[A religious cult originally based in San Francisco flees to a jungle clearing in Guyana South America to avoid "persecution", and then stages a mass-murder-suicide event via drinking poison mixed into grape-flavored Kool-aid after killing American Congressional and news media visitors who arrive to inspect the area.
July 18, 1984	San Diego, California, United States	San Ysidro McDonald's Massacre	21	Gunman James Oliver Huberty killed 21 people in a McDonald's restaurant before being fatally shot by a SWAT team sniper.[285][286][287]
August 19, 1987	Hungerford, England	Hungerford massacre	16[298]	A gunman armed with semi-automatic rifles and a handgun killed 16 people before committing suicide.[299]
December 6, 1989	École Polytechnique,Montréal, Quebec, Canada	École Polytechnique massacre[306]	14	Marc Lépine, claiming to fight feminism, shot and killed 14 female students of the École Polytechnique de Montréal and wounded 14 other people before turning his gun on himself. The event led to stricter gun control laws[307] and changes in police tactical response to shootings in Canada.[308]
November 13, 1990	Aramoana, New Zealand	Aramoana massacre	13	Lone gunman David Malcolm Gray began shooting indiscriminately at people, killing 13 people before being killed by police himself, allegedly after a dispute with his next door neighbor. It remains New Zealands deadliest criminal shooting.[317][318][319][320]
October 16, 1991	Killeen, Texas, United States	Luby's massacre	22	George Jo Hennard drove his pickup truck into a Luby's Cafeteria and shot and killed 22 people, wounded another 20 and then committed suicide by shooting himself.[321][322][323][324][325]
January 8, 1993	Palatine, Illinois, United States	Brown's Chicken massacre	7	Seven people were murdered at the Brown's Chicken and Pasta in Palatine[337]
April 19, 1993	Waco, Texas, United States	Waco massacre	76	Seventy-six members of the Branch Davidian church died after a 51 day siege in a fire started either accidentally or by church members after a Federal Bureau of Investigation tank attack upon the main building. Earlier, on on February 28, 1993, six others died by gunfire after the original Bureau of Alcohol, Tobacco and Firearms raid.[338]
February 25, 1994	West Bank	Cave of the Patriarchs massacre[352][353] (Ibrahimi Mosque massacre)[354]	29	Baruch Goldstein opens fire with an assault rifle killing 29 Muslims and wounding 150 at prayer in the Ibrahimi Mosque before being subdued and beaten to death.[355][356]
March 28, 1994	Johannesburg, South Africa	Shell House massacre	19	Security guards of the African National Congress (ANC) fired on 20,000 Inkatha Freedom Party (IFP) marchers.[363][364][365]
June 18, 1994	Loughinisland, Northern Ireland	Loughinisland massacre	6	Ulster Volunteer Force (UVF) opened fire in a crowded bar using assault rifles, killing six civilians and wounding five.[366][367][368][369][370][371][372]
January 22, 1995	Israel	Beit Lid massacre	22[373]	First suicide attack by Palestinian Islamic Jihad, killing 22 and wounding 69. Carried out by two bombers; the second waited until emergency crews arrived to assist the wounded and dying before detonating his bomb.[374][375][376][377]
March 13, 1996	Scotland	Dunblane massacre	17[380]	A gunman opened fire in a primary school, killing sixteen children and one teacher before killing himself.[381][382][383]
April 29, 1996	Port Arthur, Tasmania,Australia	Port Arthur massacre	35[384]	The Port Arthur massacre of 28 April 1996 was a killing spree which claimed the lives of 35 people and wounded 21 others mainly at the historic tourist site Port Arthur in south-eastern Tasmania, Australia. The massacre remains Australia's deadliest mass killing spree and remains one of the deadliest such incidents worldwide in recent times.[385]
March 26, 1997	San Diego, California	Heaven's Gate (Hale-Bop Comet) Murder-suicide	39	A UFO religious cult called "Heaven's Gate" becomes convinced that an alien spaceship is following the Hale-Bop Comet as it passes close to Earth, and the spaceship is here to pick up ("rescue") the souls of the cult if they die while the comet and spaceship are close enough for their souls to make the difficult spiritual journey to the ship. Some members volunteer to be "humanely" murdered while others commit suicide.
April 20, 1999	Littleton, Colorado, United States	Columbine High School massacre	15[413]	Two teenagers, Eric Harris and Dylan Klebold open fire on their classmates on April 20, 1999 at Columbine High School, killing 12 students and one teacher before committing suicide.
July, 1999	Atlanta, Georgia, United States	Brokerage massacre	12	A gunman killed nine people at two brokerages in Atlanta, after apparently killing his wife and two children. He committed suicide five hours later.
June 2001	Nepal	Royal family massacre	10	Eight members of the Nepalese Royal family were killed in a palace massacre by Crown Prince Dipendra who later turned a gun on himself and died few days later. His youngest brother also died later raising the death toll to 10.
April 26, 2002	Erfurt, eastern Germany	Gutenberg Gymnasium massacre	17	In Erfurt, eastern Germany, 19-year-old Robert Steinhauser opened fire after saying he was not going to take a math test. He killed 12 teachers, a secretary, two pupils and a policeman at the Gutenberg Gymnasium, before killing himself.
October, 2002	Washington DC area	Sniper terror	10	John Muhammad and Lee Malvo killed 10 people in sniper-style shooting deaths that terrorized the Washington, D.C., area.
March 5, 2005	near Rehoboth, Namibia	Kareeboomvloer massacre	8	Brothers Sylvester and Gavin Beukes murder the owners' couple of farm Kareeboomvloer and execute all witnesses, including two children.[431] The motive was revenge for a previous theft charge laid by the farm owner.[432]
March 25, 2006	Seattle, Washington, United States	Capitol Hill massacre	6	28-year-old Kyle Aaron Huff entered a rave afterparty in the southeast part of Seattle's Capitol Hill neighborhood and opened fire, killing six and wounding two, before committing suicide.[435][citation needed]
April 16, 2007	Blacksburg, Virginia, United States	Virginia Tech Massacre	32	Gunman Seung-Hui Cho, killed 32 people and wounded many others[436] before committing suicide. The massacre is the deadliest peacetime shooting incident by a single gunman in United States history, on or off a school campus.[437]
November 2, 2007	Near Helsinki, Finland	Jokela High School massacre	9	Pekka-Eric Auvinen killed six fellow students, the school nurse, the principal and himself with a handgun.
September 23, 2008	Kauhajoki in northwest Finland	Vocational school massacre	11	Student Matti Saari opened fire in a vocational school in Kauhajoki in northwest Finland, killing nine other students and one male staff member before killing himself.
March 11, 2009	Near Stuttgart, Germany	School massacre	16	A 17-year-old gunman dressed in combat gear killed nine students and three teachers at a school near Stuttgart. He also killed one other person at a nearby clinic. He was later killed in a shoot-out with police. Two additional passers-by were killed and two policemen seriously injured, bringing the death toll to 16 including the gunman.
November 5, 2009	Ft. Hood, Texas, United States	Fort Hood Massacre (Fort Hood shooting)	13	Gunman Malik Nadal Hasan, a Major in the U.S. Army, killed 12 soldiers and one civilian, and wounded at least 30 on the base at Ft. Hood. Initial reports indicate Hassan was upset at being deployed to Iraq.[439][440][441][442][443][444]
June 2, 2010	Cumbria County, Britain	Town massacre	13	Gunman Derrick Bird opened fire on people in towns across the rural county of Cumbria. Twelve people were killed and 11 injured. Bird also killed himself.
January 8, 2011	Tucson, Arizona, United States	2011 Tucson supermarket massacre	6	One man, Jared Lee Loughner, attacked a group of people outside a supermarket in Tucson, Arizona. His intent was to kill U.S. Representative Gabrielle Giffords only, but he ended up killing 6 and wounding 19 – though grievously wounded (and despite initial reports to the contrary), Giffords herself survived. Those killed in the incident included United States District Court for the District of Arizona Chief Judge John Roll and one of Gifford's staffers.[450]
April 9, 2011	Alphen aan den Rijn, Netherlands	Ridderhof Mall massacre	7	Tristan van der Vlis opened fire in the Ridderhof mall in Alphen aan den Rijn, south of Amsterdam, killing six before turning the gun on himself.
July 22, 2011	Utøya, Buskerud, Norway	2011 Utøya massacre	69	One man, Anders Behring Breivik, went to the island of Utøya on July 22, 2011, right after the devastating bomb in Oslo. Wearing a fake police uniform, he shot and killed 69 youths at the annual labour youth party, and injured several more. It is still unknown how long the massacre lasted. According to police logs, it took an hour from the first calls until the response team arrested him. The defenseless people had nowhere to run. Many tried to swim away from the island to shore, some made it, and some did not.[451]
December 13, 2011	Liege, Belgium	Central Square massacre	5	Gunman Nordine Armani killed three people, including a 17-month-old toddler, wounding 121 in a central square in the eastern city of Liege, before shooting himself. The next day Belgian investigators found the body of a woman in warehouse used by the gunman raising the death toll, including the killer, to five.
May 25, 2012	Houla, Syria	Houla massacre	108	Approximately 108 people were killed with knives in the Syrian town of Houla. Approximately 49 children, 34 women and another 25 men were among the victims.[457]
July 20, 2012	Aurora, Colorado, United States	Colorado Movie Theater Massacre (2012 Aurora shooting)	12	Twelve people were killed and 58 others were injured when a gunman opened fire in a crowded movie theater in Aurora, Colorado, during the midnight premier of The Dark Knight Rises film. A 24 year old male, James Holmes, was arrested and charged with the killings.[458]
December 14, 2012	Sandy Hook Elementary School, Newtown, Connecticut, United States	Sandy Hook Elementary School shooting	26	Twenty children and six adults, including the perpetrator, were killed in a shooting attack at a primary school in the US state of Connecticut.[459]

This list does not contain government sanctioned massacres. http://en.wikipedia.org/wiki/List_of_events_named_massacres