Two of the main points... >> practically every mass shooter we studied had reached an identifiable crisis point in the weeks or months leading up to the shooti

Two of the main points... >> practically every mass shooter we studied had reached an identifiable crisis point in the weeks or months leading up to the shooting. Such crises were, in many cases, communicated to others through a marked change in behavior, an expression of suicidal thoughts or plans, or specific threats of violence. >> most of the shooters had studied the actions of other shooters and sought validation for their motives. In other words, they talk to other people about their plans and grievances beforehand, so there is an opportunity for intervention.