An active shooter incident must involve a shooter or shooters using a firearm—whether they successfully discharge the weapon or merely attempt to do so while attempting to kill or harm people.
NCIER®
Active shooter incidents require firearm use, fired or attempted, while trying to harm people
How to cite
APA
Federal Bureau of Investigation. (2026). Active Shooter Incidents in the United States in 2025 (p. 9). Claim p009-02, NCIER Claim Map. https://ncier.org/research/claim-maps/fbi-active-shooter-2025/claims/p009-02
HTML
Federal Bureau of Investigation. (2026). Active Shooter Incidents in the United States in 2025 (p. 9). Claim p009-02, NCIER Claim Map. <a href="https://ncier.org/research/claim-maps/fbi-active-shooter-2025/claims/p009-02">https://ncier.org/research/claim-maps/fbi-active-shooter-2025/claims/p009-02</a>Link to https://ncier.org/research/claim-maps/fbi-active-shooter-2025/claims/p009-02 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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