Date
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Event/Location
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September 25, 2014
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A man fired from an Oklahoma food processing plant beheaded a woman with a knife and was attacking another worker when he was shot and wounded by a company official.
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January 29, 2013
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A gunman, 70-year old Arthur Douglas Harmon, allegedly shot and killed 48-year-old Steve Singer, CEO of the Scottsdale-based Fusion Contact Centers LLC, a call center company.
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December 14, 2012
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Adam Lanza killed 20 children and six adults at Sandy Hook Elementary School in Newtown, Connecticut.
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December 11, 2012
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Jacob Tyler Roberts, a masked gunman opened fire at Clackamas Town Center, a mall in suburban Portland, Oregon, killing two people, injuring one, and then killing himself.
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July 20, 2012
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James Eagan Holmes, dressed in tactical clothing, set off tear gas grenades and shot into the audience with multiple firearms, killing 12 people and injuring 58 others in Aurora, Colorado, during a midnight screening of the film The Dark Knight Rises.
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April 2, 2012
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Seven people were killed and three others wounded in a shooting rampage by 43-year-old One Goh at an Asian religious vocational school in east Oakland, California; police later detained the suspected gunman.
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January 8, 2011
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Jared Lee Loughner killed six people and injured more than a dozen others, including a congressional lawmaker, outside of a supermarket in Arizona.
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February 12, 2010
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Amy Bishop went on a shooting rampage during a faculty meeting at an Alabama university, killing three colleagues and wounding three others as a result of being denied tenure.
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November 5, 2009
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U.S. Army Major Nidal Malik Hasan is alleged to have killed 13 people after he went on a shooting spree at the busy U.S. military base in Texas.
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April 16, 2007
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Seung-Hui Cho killed 32 people and himself on Virginia Tech campus in Blacksburg, Virginia.
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April 20, 1999
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Students 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 in the school's library.
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June 18, 1990
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James Edward Pough shot people at random in a General Motors Acceptance Corp. office in Jacksonville, Florida, killing 10 and wounding four, before killing himself.
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August 20, 1986
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Pat Sherrill, 44, a postal worker who was about to be fired, shot 14 people at a post office in Edmond, Oklahoma.
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July 18, 1984
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James Oliver Huberty, an out-of-work security guard, killed 21 people in a McDonald's restaurant in San Ysidro, California.
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