mass shooting

The discharging of firearms multiple times by one or more parties into a group of unarmed victims
Examples
Fort Hood, TX, November 2009—13 dead
Virginia Tech, April 2007—32 dead
Columbine High School, April 1999—17 dead

mass shooting

Public health Multiple discharging of firearm(s) onto a group of unarmed victims. Cf Genocide, Serial killing.