During which phase of an active shooter event does the suspect commit to carrying out the act?

The phase during which the suspect commits to carrying out the act is the approach phase. At this stage, the individual has moved beyond the initial thoughts or planning stage and has made a definitive decision to execute their attack. The approach phase typically involves the suspect more actively preparing to engage in the shooting, which may include gathering weapons, going to the site of the planned attack, or taking steps to avoid detection. This phase is crucial as it reflects a significant escalation in their intent and readiness to carry out the violent act, marking a clear transition from mere contemplation to action.

In contrast, the other phases relate to different stages of the perpetrator's thought process and planning. The fantasy phase involves the individual envisioning the attack in detail but lacking a firm commitment to the act. The preparation phase refers to the logistical aspects of organizing the attack, such as acquiring weapons or scouting locations, but does not capture the critical moment of committing to action. The implementation phase is when the act is actually taking place, which comes after the suspect has committed to it.