Blair, J.P. and Schweit, K.W. (2014). A Study of Active Shooter Incidents in the United States Between 2000 and 2013. Texas State University and Federal Bureau of Investigation, U.S. Department of Justice.
In 2014, the Federal Bureau of Investigation initiated a review of active shooter incidents. This report includes data that can help law enforcement and other first responders plan for and respond to these events.