Social and Behavioral Science
The short-term and long-term impacts of the procedural justice training
Public Mass Shootings: Database Amasses Details of Half Century of U.S. Mass Shootings
Public Mass Shootings: Database Amasses Details of a Half Century of U.S. Mass Shootings with Firearms, Generating Psychosocial Histories
A troubled past and leaked plans are common to those who take part in mass shootings. Most use handguns, NIJ-supported research shows.