Mass Public Shooting Database


Last posting: 2019-08-02

The Gun Facts project maintains a database of U.S. mass public shootings (MPSs). This database uses the original criminology definition of MPS: four or more people are killed in a single location, not including attackers.

The Gun Facts MPS database has two elements that were first found in this database (though other researchers have replicated our efforts). This includes:

  1. Determining if any of the weapons used conformed to the 1994 Federal Assault Weapons Ban criteria.
  2. If the event was a “cattle pen scenario”, which is a unique Gun facts observation about what makes MPSs more deadly.

Open (and optionally download) the database