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

Sandy Hook five years on: more awareness but still too little control, France 24.

Mass shootings aren’t more frequent—but they are deadlier, Associated Press.  Partial List:  ABC News;  Chicago Tribune;   Fox News;  Houston Chronicle;  LA Times;  Minnesota Public Radio;  Newsday;  New York Times;  San Francisco Chronicle;  Seattle Times;  St. Louis Post–Dispatch;  Washington Post;  Yahoo.

Both sides of gun debate wonder how to keep guns from those who shouldn’t have them, Washington Post.

Shootings drop in Minneapolis, but rounds fired are on the rise, Star Tribune.

Minnesota Researchers Create Mass Shooting Database, Associated Press. 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.

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

Hamline Team Researches the Why Behind Mass Shootings, KARE 11.

How Common are Mass Shootings? WCCO.

Trying to Make Sense of Mass Shootings, KARE 11.