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Mass killings database reveals trends, details and anguish in every US event since 2006

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Over the past decade, USA TODAY, along with Northeastern University and The Associated Press, has been tracking all mass killings in the United States. When it comes to gun violence, our database is narrower than other tracking sites, such as the Gun Violence Archive, that include shootings that injure large numbers of people but kill no one. However, our data is broader in other ways. It includes every mass killing since 2006 from all weapons in which four or more people, excluding the offender, were killed within a 24-hour time frame.

The number of mass killings in 2022 is about average compared with previous years despite recent shootings that captured public attention. The number of victims is somewhat higher than average but still below previous highs.

Read the full story in USA TODAY.

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