An active shooter is an individual actively engaged in killing or attempting to kill people in a confined and populated area; in most cases, active shooters use firearms(s) and there is no pattern or method to their selection of victims.
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On This Site
On Other Sites:
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- Department of Homeland Security publication: Active Shooter: How to Respond [PDF]
- FBI’s Active Shooter Resources Page
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[ Glossary ]
Last Modified: 07/19/2021