Toolkit: Preventing Mass Attacks, Saving Lives

This toolkit can be used by schools and community service providers, among others, to help reduce the likelihood of mass shootings and other public attacks, and reduce the casualties of completed attacks. After studying 600 mass attack events and plots, interviewing dozens of experts, and reviewing hundreds of references, researchers identified the Mass Attacks Defense Chain, a series of defenses that work together to reduce the probability of mass attacks and their impacts. Learn more.