A scenario began to unfold on the screen before them. The officers begin to search inside a building. “I hear gunshots,” the officers say.As the virtual scene continues to unfold, more gunshots are heard. The two officers, guns drawn, move around the simulation room as they access the situation.Two armed suspects appear on the scene. They are holding a hostage. The officers fire their simulated weapons. Both suspects fall to the ground. The scenario ends.Lt. Andrew O’Malley immediately asks the officers what the primary objective is in an active shooter incident. The answer is given quickly, end the violence. During the debriefing, O’Malley reminds the officers of the “Plus One” rule in an active shooter situation. “When we put down the first shooter, we can’t relax ourselves. We understand there are always dangers,” he said.