Chris Grollnek Active Shooter Expert on WUSA9, Leakage and the Washington DC Shooting

Chris Grollnek joined WUSA9 in Washington DC on 12 November 2026 to talk through what the record actually shows about the days and weeks before an attack, and what an ordinary person can do with that. The conversation is about leakage. The FBI uses the term for the moment an attacker reveals, to a third party, what they are thinking of doing. It happens in the majority of cases. In this one it happened in a manifesto, and the grievance behind it was a dispute the man had already been having out loud. Chris is the author of the P.R.O. Model, Prevention, Response, Options, which the Department of Justice selected as “A” national standard for the Assistant United States Attorneys, the Executive Office for United States Attorneys, and across the Department of Justice, first for the 2022 to 2025 cycle and again for 2026 to 2030. It is in use at some installations and commands across the Department of Defense. He is a former U.S. Marine and retired police detective corporal, and he was on scene at an active shooter incident. CHAPTERS 0:00 What you look for first, after everyone is safe 0:58 Leakage, and why attackers tell people before they act 1:28 The manifesto, and the grievance underneath it 2:17 Telling an ordinary complaint from something to act on 2:40 The FBI range, and why it is a wide one 3:33 Tracking this the way we learned to track terrorism 4:06 Why the prevention standard is free on the website 5:13 Running, hiding, sheltering in place, and what people get wrong 5:34 Twenty-two standards, and where run, hide, fight came from 6:25 Ability against desire, and the hero problem 7:29 If someone tells you, believe them and report it THE ONE LINE TO TAKE AWAY If someone tells you they are going to do something despicable, believe them and report it. The prevention work is free to read at aspppro.com. No sign-up. Active Shooter Prevention Project, LLC. North Richland Hills, Texas. #NEVERHERE