Analysis of information sources in references of the Wikipedia article "Penembakan massal" in Indonesian language version.
Generally, mass murder was described as a number of murders (four or more) occurring during the same incident, with no distinctive time period between the murders.
What is a mass shooting?
Broadly speaking, the term refers to an incident involving multiple victims of gun violence. But there is no official set of criteria or definition for a mass shooting, according to criminology experts and FBI officials contacted by Mother Jones.
