Our guest is Dr. Jillian Peterson, a professor of criminology and criminal justice at Hamline University in St. Paul, Minnesota, whose research engaged undergraduate students in creating the most comprehensive database of every mass shooter in America since 1966. With that research, Dr. Peterson has co-authored a book called The Violence Project: How to Stop a Mass Shooting Epidemic which offers more than 30 solutions on how we might approach the epidemic of violence in this country.