MPR News host Angela Davis spoke with Jillian Peterson about the motivations behind these shootings and potential steps towards prevention. Peterson is a psychologist and professor of criminology and criminal justice at Hamline University. Peterson has studied the life history of mass shooters in the United States.
Use the audio player above to listen to the segment.
At the time of the show the reported death toll was 30. The web copy reflects the updated number, the audio does not.