The methodology described was first discussed in Blair, J. Pete, and Schweit, Katherine W. A Study of Active Shooter Incidents in the United States Between 2000 and 2013, Texas State University and the Federal Bureau of Investigation, U.S. Department of Justice, Washington, D.C., 2014.
APA
Federal Bureau of Investigation. (2026). Active Shooter Incidents in the United States in 2025 (p. 8). Claim p008-12, NCIER Claim Map. https://ncier.org/research/claim-maps/fbi-active-shooter-2025/claims/p008-12
HTML
Federal Bureau of Investigation. (2026). Active Shooter Incidents in the United States in 2025 (p. 8). Claim p008-12, NCIER Claim Map. <a href="https://ncier.org/research/claim-maps/fbi-active-shooter-2025/claims/p008-12">https://ncier.org/research/claim-maps/fbi-active-shooter-2025/claims/p008-12</a>Link to https://ncier.org/research/claim-maps/fbi-active-shooter-2025/claims/p008-12 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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