A majority of the assailants in mass attacks in the U.S. last year shared strikingly similar traits, a new Secret Service report found.
An analysis of 28 mass attacks, which killed 147 people and injured nearly 700 more nationwide, found that all suspects were male and 64% experienced mental health issues before the assaults.
Before the attacks, 79% of them had engaged in threatening or suspicious behavior witnessed by others, according to the National Threat Assessment Center report on Mass Attacks in Public Space.
About 71% of the suspects had a criminal history, and one-third had been charged with domestic violence. Two-thirds had a history of violence, though not all of it was reported or ended in charges.
In the five years before the attacks, more than half experienced financial hardships, and 82% “exhibited behaviors that were indicative of aggressive narcissism,” the Secret Service found.
Nearly half of the suspects were driven by a personal grievance, whether real or perceived.
Less than two months before the report was released, Nikolas Cruz is accused of killing 17 people at a Florida high school after he passed a background check to buy an AR-15 assault-style rifle.
Cruz exhibited nearly every trait found in a majority of last year’s attackers.