Mass Violence Project

Gun Violence in America

The Violence Project has produced a 50 page comprehensive report on gun violence in America. This free report examines the history of guns in the United States, the prevalence of gun violence in our communities, trends in mass shootings, and the rise of “performance violence” in an age of social media. This report also analyses what works in gun violence prevention and intervention. Download here:

Issue Brief – Gun Violence in America

Densley, J. & Peterson, J. (2017). Gun violence in America. St. Paul, MN: The Violence Project LLC. doi: 10.13140/RG.2.2.29196.00649


Mass Shooter Database

The Violence Project is currently building a database of public mass shooters in the United States from 1966 to 2017.  This extends the work of Grant Duwe, Mother Jones, The Washington Post, and others.  Based on an extensive content analysis, we are systematically coding offenders on 50 different psycho-social variables.  We aim to use statistical modeling to look for patterns in the data that can better inform research and policy.

Coming Spring 2018


Related Research

Developing an understanding of victims and violent offenders: The impact of fostering empathy

Training students to respond to shootings on campus: Is it worth it?

Homicide-suicide in China: An exploratory study of characteristics and types

The routine of mass murder in China


Related Press

Associated Press:  Minnesota Researchers Create Mass Shooting Database

Partial List:  KSTP–TV;  Middletown Press;  Post Bulletin;  Register Citizen;  San Francisco Chronicle;  Seattle Times;  USA Today;  U.S. News and World Report;  Washington Times;  Winona Daily News.

Associated Press:  Mass shootings aren’t more frequent, but they are deadlier

Partial List:  New York Times, ABC News, Fox News, Reno Gazette, New Jersey Herald, Minnesota Public Radio, San Francisco Chronicle

Minnesota Public Radio:  “This Shooter is a Little Different”: Hamline Professor Studies Mass Shootings

KARE 11:  Hamline Team Researches the Why Behind Mass Shootings

Twin Cities WCCO:  How Common are Mass Shootings?

Twin Cities KARE 11:  Trying to Make Sense of Mass Shootings