Mass killings in the U.S. : A USA Today investigation

3:42 PM, Dec 3, 2013   |    comments
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USA Today reporters have produced a multi-part investigation into mass killings in the United States just since 2006.

"Behind the Bloodshed" examines the killers, the victims and system "safety net" failures to stop the killlers.

Here is just one interactive of the number of mass murders and were they were committed.

USA Today

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