Research has found that mass shooters don’t just snap. They spend time thinking about violence and they plan, prepare, and often display indicators before their attacks.
cite page 74 Appendix IV: Prevent Mass Violence and Behavior Indicators
NCIER®
Research finds mass shooters plan, prepare and often show indicators rather than snap
How to cite
APA
Federal Bureau of Investigation. (2026). Active Shooter Incidents in the United States in 2025 (p. 74). Claim p074-01, NCIER Claim Map. https://ncier.org/research/claim-maps/fbi-active-shooter-2025/claims/p074-01
HTML
Federal Bureau of Investigation. (2026). Active Shooter Incidents in the United States in 2025 (p. 74). Claim p074-01, NCIER Claim Map. <a href="https://ncier.org/research/claim-maps/fbi-active-shooter-2025/claims/p074-01">https://ncier.org/research/claim-maps/fbi-active-shooter-2025/claims/p074-01</a>Link to https://ncier.org/research/claim-maps/fbi-active-shooter-2025/claims/p074-01 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.
Top
Find the Perfect Training Class For You