The FBI defines an active shooter as one or more individuals actively engaged in killing or attempting to kill people in a populated area.
NCIER®
FBI defines active shooter as individuals killing or trying to kill in populated area
How to cite
APA
Federal Bureau of Investigation. (2026). Active Shooter Incidents in the United States in 2025 (p. 8). Claim p008-03, NCIER Claim Map. https://ncier.org/research/claim-maps/fbi-active-shooter-2025/claims/p008-03
HTML
Federal Bureau of Investigation. (2026). Active Shooter Incidents in the United States in 2025 (p. 8). Claim p008-03, NCIER Claim Map. <a href="https://ncier.org/research/claim-maps/fbi-active-shooter-2025/claims/p008-03">https://ncier.org/research/claim-maps/fbi-active-shooter-2025/claims/p008-03</a>Link to https://ncier.org/research/claim-maps/fbi-active-shooter-2025/claims/p008-03 from your own pages; it resolves to this claim and its highlighted source passage.
License: CC BY 4.0. Free to reuse with attribution: credit NCIER Claim Map and link to the claim.
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