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Mass murder

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Filmmaker Discusses '77 MINUTES' Documentary On 1984 San Ysidro McDonald's Mass Murder

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Colorado cinema gunman James Holmes guilty of mass murder

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Edmonton mass murder suspect's family troubles

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One of the most notorious mass murderers in America died in prison

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Gunman kills more than 16 in Canada's worst act of mass murder in 30 years

Mass murder is the act of murdering a number of people, typically simultaneously or over a relatively short period of time and in close geographic proximity. The FBI defines mass murder as murdering four or more persons during an event with no "cooling-off period" between the murders. A mass murder typically occurs in a single location where one or more people kill several others. Many acts of mass murder end with the perpetrator(s) dying by suicide or suicide by cop.
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