On November 19, 2019, The Violence Project, a nonpartisan think tank, will publicly release the largest, most comprehensive database of mass shooters in the United States.
This new database, funded by the National Institute of Justice, the research arm of the U.S. Department of Justice, was developed by professors Jillian Peterson and James Densley and a team of students at Hamline University in St. Paul, Minnesota. It includes 171 mass shooters from 1966 to 2019, each coded on 100 pieces of life history information. The entire database is downloadable for free at www.www.theviolenceproject.org.