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Emmons, N. & Manson, C. (1986). Manson in His Own Words. New York, NY: Grove Press.
Glenn, A. L. & Raine, A. (2014). Psychopathy: An introduction to biological findings and their implications. New York: New York University Press.
Hare, R. (1999). Without Conscience: The Disturbing World of Psychopaths among Us. New York: Guilford Press.
Helfgott, J. B. (2008). Criminal Behavior: Theories, Typologies, and Criminal Justice. Thousand Oaks, CA: Sage Publications.
Krenwinkel, P. [The New York Times]. (2014, August 5). My Life After Charles Manson: Op-Docs The New York Times. Retrieved from www.youtube.com
Mai-Duc, C. (2014, November 17). Charles Manson gets license to wed 26-year-old
he said he wouldn't marry. The Los Angeles Times. Retrieved from
www.latimes.com
Manson Family Murders Fast Facts (2015, August 24). CNN. Retrieved from www.CNN.com
Patrick, C. J. (2006). Handbook of Psychopathy. New York: The Guilford Press.
Rule, A. (2013, August 15). There Will Be Blood: 'Manson,' a biography by Jeff Guinn. The New York Times. Retrieved from www.nytimes.com
Watkins, P. (1971, August 26). Testimony of Paul Watkins. Retrieved from http://umkc.edu
Watkins, P. [James Doakes]. (2012, October 28). Paul Watkins CNN Interview. Retrieved from www.youtube.com