In the aftermath of the movie theater mass shooting in July of 2012 in Aurora, Colorado, Mother Jones magazine created one of the first open-source databases documenting mass shootings in the United States. They focused on documenting rampage shootings in public places which resulted in four or more victims killed by the attacker(s). Their initial database consisted of incidents between 1982 and 2012, then an additional 54 cases were added to this data base of incidents which occurred between 2013 and August 2019. The purpose of this chapter is to analyze the incidents gathered in this complete database from 1982 to 2019. Special attention is given to overall trends and characteristics of types of offenders, events, and weapons used in such violent events.
Crews, Gordon Arthur and Garrison Allen Crews. "Mother Knows Best: A Brief Examination of the 1982-2019 US Mass Shootings Data From Mother Jones's Investigation." Handbook of Research on Mass Shootings and Multiple Victim Violence, edited by Gordon A. Crews, IGI Global, 2020, pp. 41-55. http://doi:10.4018/978-1-7998-0113-9.ch003
Handbook of Research on Mass Shootings and Multiple Victim Violence