The following analysis covers our original dataset comprised of 62 cases from 1982-2012.
Weapons: Of the 143 guns possessed by the killers, more than three quarters were obtained legally.
The interactive map below and our downloadable database have been expanded with 34 additional cases from 2013-2018.
Dating back to at least 2005, the FBI and leading criminologists essentially defined a mass shooting as a single attack in a public place in which four or more victims were killed.
After his last stint in prison, Shane was determined to turn over a new leaf and create a better life for himself.
His facial tattoos, along with his criminal record, made finding steady work extremely difficult, and work that paid a living wage nearly impossible.
Since then, we’ve updated and expanded it multiple times with additional research and reporting.