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We have studied every mass shooting since 1966. Here’s what we’ve learned about the shooters

Op-Ed: We have studied every mass shooting since 1966. Here’s what we’ve learned about the shooters (Los Angeles Times)

Perpetrators of mass shootings have a lot in common. Understanding that could help prevent future violence.

A must read op-ed: We have studied every mass shooting since 1966. Here’s what we’ve learned about the shooters.

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?

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