A report published by the FBI (Federal Bureau of Investigation) Academy in the United States goes so far as to say: “Homicide is not the act of a sober, sane, individual. ” Some authorities would take issue with the wording of that statement.
Daži speciālisti iebilst pret šādu formulējumu, tomēr daudzi piekrīt, ka to cilvēku domāšana, kuri paveic bezjēdzīgus noziegumus, kaut kādu iemeslu dēļ nav normāla.