Law enforcement’s primary role in an Active Shooter/Mass Casualty Incident is to locate and neutralize the threat—“Stop the Killing.”This is ingrained in our training and mindset. However, the challenge is transitioning to “Stop the Dying,”especially when concerns about complex coordinated terrorist attacks influence our decision-making.

But we have to be disciplined in our approach.

Without a clear stimulus—ongoing gunfire, known victims, or actionable intelligence—continuing to push forward in search of additional threats risks neglecting the injured. Those victims have only minutes to be stabilized, triaged, and evacuated to definitive care.

If a second crisis site emerges, that responsibility falls to Incident Command—to communicate to the staging manager and deploy additional resources from staging or communicate to a interior tactical command and redirect personnel already inside. It is not the role of patrol officers to self deploy and conduct full-scale, stimulus-free structure clearing. This is …!CHAOS..That mission belongs to SWAT, with the training and equipment to do it safely and deliberately.

Additionally, in a true complex coordinated attack, blindly advancing without purpose increases the risk of walking into a secondary ambush. This requires restraint—something that runs counter to the instincts of many high-performing, action-oriented officers. But discipline saves lives.

We must anchor ourselves to the priorities of life:

1. Hostages 
2. Innocents 
3. First Responders 
4. Suspect 
5. 
   

Stop the Killing → Then immediately shift to Stop the Dying.