A Spree Killer is described as someone who kills in two or more locations quickly moving from one victim to the next.
There is no cooling off period between murders therefore constituting a single event. The Spree Killer appears spontaneous but often plans the event carefully over several hours and days.
Generally they have a grudge and may target the people they feel have rejected them. Characterising them as follows - Inability to take criticism, Sense of self importance, Mood swings, Obsession with guns, Poor social skills and possible mental health problems.
Spree Killers most often complete the event with their own suicide or force the police to kill them.