References
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Douglas, John, and Olshaker. The Anatomy of Motive. Published by Simon and Schuster, 2000.
Caroline, Meyer. "Introduction to Criminal Profiling." Criminal Profiling Research. January 8, 2008. Swiss Criminal Profiling Research Site. 5 Mar 2009 http://www.criminalprofiling.ch/.
J. M. MacDonald. The Threat to Kill. American Journal of Psychiatry, 125-130 (1963)
Ressler, Robert; Ann Burgess, and John Douglas. Sexual Homicide: Patterns, Motives & Procedures for Investigation
Scott, Shirley. L. What makes serial killers tick?.Crime Library criminal minds and methods. 1-21 (2008).
The Iceman Tapes: Conversations With a Killer’ (2001).