Perpetrators of mass shootings have a lot in common. Understanding that could help prevent future violence.
Two researchers share findings from a National Institute of Justice funded research looking at the life histories of mass shooter in the US.
They identify four commonalities:
– Early childhood trauma and exposure to violence at an early age
– Reached an identifiable crisis point in weeks or months leading up to the shooting
– Access to actions, ideologies, and validation for their plans from other shooters
– Access to the means to carry out their plans. Can they obtain firearms?