Analysis of information sources in references of the Wikipedia article "Tueries de masse aux États-Unis" in French language version.
« defined as a single incident that kills or injures four or more people »
.« Mass shootings are defined for the study as having four or more victims and don't include gang killings »
« According to the Federal Bureau of Investigation (FBI) criminal profilers, the term “mass murder” has been defined generally as a multiple homicide incident in which four or more victims are murdered—not including the offender(s)—within one event, and in one or more geographical locations relatively near one another »
.« But starting in 2013, federal statutes defined "mass killing" as three or more people killed, regardless of weapons. »