- Study of Pre-Attack Behaviors of Active Shooters (FBI): https://www.fbi.gov/file-repository/pre-attack-behaviors-of-active-shooters-in-us-2000-2013.pdf/view
- Active Shooter Recovery Guide (DHS): https://www.dhs.gov/sites/default/files/publications/active-shooter-recovery-guide-08-08-2017-508.pdf
- Active Shooter Emergency Action Plan Video (DHS): https://www.dhs.gov/active-shooter-emergency-action-plan-video
- Helping Victims of Mass Violence and Terrorism (DOJ): https://www.ovc.gov/pubs/mvt-toolkit/
- Active Shooter How to Response Guide (DHS, National Tactical Offiers Association, Fairfax County Police, National Retail Federation, Retail Industry Leaders Assocaition): https://www.dhs.gov/sites/default/files/publications/active-shooter-how-to-respond-2017-508.pdf
- Making Prevention a Reality: Identifying, Assessing, and Managing the Threat of Targeted Attacks (FBI): https://www.fbi.gov/file-repository/making-prevention-a-reality..pdf/view