Visionary killers- acting on perceived voices or images instructing them to kill a particular person (or type of person), disorganised crime, chaotic.
Mission killers- motivated by a decision that a person (or type of person) is unacceptable or valueless and should therefore be removed (missing weapon, throat cutting).
Lust killers- motivated by sex and is part of the process of fulfilling their sexual lusts. Evidence indicates sexual aspect.
Thrill killers- motivated by the pleasure (thrill) they experience from the event. Generally include evidence of prolonged torture.
Power/control killers- motivated by the need to extend the ultimate control or power over a victim. may be reflected by type of weapon or location of offence.