Workplace shootings in the U.S. by victim count, as of April 2023
Workplace shootings
A mass shooting in the United States is generally defined as an incident where four or more people were injured or killed, though this can vary by source. It is sometimes difficult to identify the cause of workplace killings (also called rampage killings), although many involved disgruntled workers and some involve perpetrators with mental health problems.Mass shootings in the United States
The vast majority of mass shootings in the United States are perpetrated by male assailants, and only three shootings have been carried out by women since 1982. Additionally, most of the weapons used in mass shootings were acquired through legal means, with only 16 incidents involving illegally obtained weapons since 1982.