“The FBI defines ‘active shooter’ events as incidents where a gunman arrives on a scene intending to commit mass murder. They can include events that result in no fatalities. The data on this page represents the most complete compilation of events tracked by Texas State University’s Dr. Peter Blair that have been publicly released.  To select data sets – mapped and sortable [Active Shooter Map, Details, Shooting Location, Total Victims Shot By Year, Active Shooters by Age, Increase by Years, Active Shooter Search, Active Shooter Analysis] use the drop down menu for details.”

• See also Scripps Exclusive: FBI says active shooting incidents triple in recent years and via SLATE – Two scientists explore a decade of data to find the tie between gun ownership and suicide in America.