30: Are All Serial Killers Psychopaths? | Case Notes

30: Are All Serial Killers Psychopaths? | Case Notes

It's one of the most common assumptions in true crime, but the answer is more complicated than most people realise. In this episode of UNMARKED: Case Notes, I speak with Dr. Louis Schlesinger, Professor of Psychology at John Jay College of Criminal Justice and one of the world's leading experts on serial and sexual homicide.  If you've ever wondered whether psychopathy is required for serial murder, or why some killers appear cold and calculating while others seem disorganised, impulsive, or deeply disturbed, this conversation is for you.

29: Israel Keyes: Inside the FBI Investigation

Was Israel Keyes really a criminal mastermind—or have we misunderstood him all along? For years, Israel Keyes has been portrayed as one of the most methodical serial killers in modern history: a man who buried murder kits across the United States, targeted complete strangers, and evaded law enforcement for years. But the deeper I dug into the FBI files, interrogation transcripts, and the people who investigated him, the more that familiar story began to unravel. In this episode, I examine the life of Israel Keyes through an exclusive interview with retired FBI Special Agent Mary Rook, who led the investigation in Alaska, along with journalist Maureen Callahan, author of American Predator. Using FBI interrogation footage, investigative records, and current psychological research, I trace Keyes' trajectory from his isolated childhood to his final FBI interviews, asking whether the evidence supports the mythology that has grown around him—or points to something far more complex. Research in This Episode:  Rubin, Bukowski & Parker (2006) "Peer Interactions, Relationships, and Groups" in the Handbook of Child Psychology. Kuhns, J. B., Blevins, K. R., et al. Understanding Decisions to Burglarize From the Offender's Perspective (2014). Show Notes: I just released my first novel called, A Plague of Steel. It’s a grimdark fantasy war story, about what war leaves behind. It’s available now on Kindle, Amazon and Kobo:   Amazon: https://www.amazon.ca/Plague-Steel-Sons-Tempering-Book-ebook/dp/B0GSPBTR49 [https://www.amazon.ca/Plague-Steel-Sons-Tempering-Book-ebook/dp/B0GSPBTR49] Kobo: https://www.kobo.com/ca/en/ebook/a-plague-of-steel-sons-of-the-tempering-book-one?srsltid=AfmBOoqPUTLclPMZxRqd0LvWNTzrU0k9SOGBCqaWiISo1HhMQk-RkHHK [https://www.kobo.com/ca/en/ebook/a-plague-of-steel-sons-of-the-tempering-book-one?srsltid=AfmBOoqPUTLclPMZxRqd0LvWNTzrU0k9SOGBCqaWiISo1HhMQk-RkHHK] If you want to follow the cases as I’m working on them, you can find me on Instagram: https://www.instagram.com/jamesbuddyday/ [https://www.instagram.com/jamesbuddyday/] If you want to go deeper into the Charles Manson case, my book Charles Manson: The Last Words documents years researching the story and speaking directly with members of the Manson Family — including Charles Manson himself.  Read it here: https://www.amazon.com/dp/B0GQ6QRVQ7 [https://www.amazon.com/dp/B0GQ6QRVQ7] For those who want to examine the evidence directly, complete phone calls and documents are available inside UNMARKED: Case Files, our research portal, along with ad-free episodes. Join here: https://www.patreon.com/Unmarked_TrueCrimePodcast [https://www.patreon.com/Unmarked_TrueCrimePodcast] UNMARKED: A True Crime Podcast is hosted by Audioboom.

28: Son of Sam: Did David Berkowitz Act Alone?

Demonic dogs. Satanic cults. Multiple shooters. Endless conspiracies. Did David Berkowitz act alone? For nearly fifty years, the Son of Sam case has inspired theories. David Berkowitz would later claim that multiple shooters were involved, that others participated in the murders, and that the public never learned the full story. But do those claims hold up to scrutiny? In this episode, I examine the evidence behind one of the most persistent mysteries in true crime. Drawing on Berkowitz's on words, investigative records, crime scene evidence, and expert analysis from forensic psychologist Dr. R. Louis Schlesinger, I explore the origins of the conspiracy theories, what investigators found after Berkowitz's arrest, and whether there is any credible evidence. Research in This Episode:  Rebekah Binger, Prison Ain’t Hell: An Interview with the Son of Sam—David Berkowitz, and Why State-Funded Faith-Based Prison Rehabilitation Progr ams Do Not Violate the Establishment Clause, 31 Pace L. Rev. 488 (2011). Stadolnik, R. J. (2000). Drawn to the Flame: Assessment and Treatment of Juvenile Fire Setting Behavior. Sarasota, FL: Professional Resource Press. Show Notes: I just released my first novel called, A Plague of Steel. It’s a grimdark fantasy war story, about what war leaves behind. It’s available now on Kindle, Amazon and Kobo:   Amazon: https://www.amazon.ca/Plague-Steel-Sons-Tempering-Book-ebook/dp/B0GSPBTR49 [https://www.amazon.ca/Plague-Steel-Sons-Tempering-Book-ebook/dp/B0GSPBTR49] Kobo: https://www.kobo.com/ca/en/ebook/a-plague-of-steel-sons-of-the-tempering-book-one?srsltid=AfmBOoqPUTLclPMZxRqd0LvWNTzrU0k9SOGBCqaWiISo1HhMQk-RkHHK [https://www.kobo.com/ca/en/ebook/a-plague-of-steel-sons-of-the-tempering-book-one?srsltid=AfmBOoqPUTLclPMZxRqd0LvWNTzrU0k9SOGBCqaWiISo1HhMQk-RkHHK] If you want to follow the cases as I’m working on them, you can find me on Instagram: https://www.instagram.com/jamesbuddyday/ [https://www.instagram.com/jamesbuddyday/] If you want to go deeper into the Charles Manson case, my book Charles Manson: The Last Words documents years researching the story and speaking directly with members of the Manson Family — including Charles Manson himself.  Read it here: https://www.amazon.com/dp/B0GQ6QRVQ7 [https://www.amazon.com/dp/B0GQ6QRVQ7] For those who want to examine the evidence directly, complete phone calls and documents are available inside UNMARKED: Case Files, our research portal, along with ad-free episodes. Join here: https://www.patreon.com/Unmarked_TrueCrimePodcast [https://www.patreon.com/Unmarked_TrueCrimePodcast] UNMARKED: A True Crime Podcast is hosted by Audioboom.

27: Colonel Russell Williams: A Predator Above Suspicion

How did a man who passed every background check, every promotion board, and every security clearance manage to hide a violent double life for years? Colonel Russell Williams was one of the most trusted men in Canada. A decorated military officer, commander of CFB Trenton, and pilot to senior government officials and members of the Royal Family. Yet behind that carefully constructed image was one of the country's most prolific sexual predators and murderers. In this episode of UNMARKED I examine the psychology of Colonel Russell Williams, the fantasies that drove his crimes, the warning signs that were missed, and the investigation that finally exposed him. Drawing on interrogation footage, court records, and expert analysis, we explore how power, secrecy, and fantasy combined to create one of the most disturbing criminal cases in Canadian history. Research in This Episode:  Birke JB, Jern P, Johansson A, Bondü R. Links between Aggressive Sexual Fantasies and Sexual Coercion: A Replication and Extension of a Multifactorial Model. Arch Sex Behav. 2024 Mar;53(3):1047-1063. doi: 10.1007/s10508-023-02782-5. Epub 2024 Jan 17.  Rossegger, A. (2021). "High Risk Sexual Fantasies and Sexual Offending." Sexual Offending: Theory, Research, and Prevention. Show Notes: If you want to follow the cases as I’m working on them, you can find me on Instagram: https://www.instagram.com/jamesbuddyday/ [https://www.instagram.com/jamesbuddyday/] If you want to go deeper into the Charles Manson case, my book Charles Manson: The Last Words documents years researching the story and speaking directly with members of the Manson Family — including Charles Manson himself.  Read it here: https://www.amazon.com/dp/B0GQ6QRVQ7 [https://www.amazon.com/dp/B0GQ6QRVQ7] For those who want to examine the evidence directly, complete phone calls and documents are available inside UNMARKED: Case Files, our research portal, along with ad-free episodes. Join here: https://www.patreon.com/Unmarked_TrueCrimePodcast [https://www.patreon.com/Unmarked_TrueCrimePodcast] UNMARKED: A True Crime Podcast is hosted by Audioboom.

26: Clifford Olson: The Killer Who Sold Bodies

In 1981, children were disappearing across British Columbia. Parents feared a predator was stalking bus stops, shopping malls, and highways throughout the Fraser Valley. What investigators didn't realize was that the man responsible wasn't hiding from police at all. He was talking to them. In this episode of UNMARKED, I examine the case of Clifford Olson, one of Canada's most notorious serial killers. Drawing on my conversation with forensic psychologist Dr. Eric Hickey, we explore Olson's childhood, the development of his violent fantasies, his manipulation of police and journalists, and the institutional failures that allowed him to continue killing. We also examine the infamous "cash for bodies" deal, in which the government agreed to pay Olson in exchange for the locations of his victims. Research in This episode:  MacCulloch, M. J., Snowden, P. R., Wood, P. J. W., & Mills, H. E. (1983). “Sadistic fantasy, sadistic behaviour and offending.” British Journal of Psychiatry, 143, 20–29. Helfgott, Jacqueline B. “Criminal behavior and the copycat effect: Literature review and theoretical framework for empirical investigation.” Aggression and Violent Behavior 22 (2015): 46–64. Show Notes:  If you want to follow the cases as I’m working on them, you can find me on Instagram: https://www.instagram.com/jamesbuddyday/ [https://www.instagram.com/jamesbuddyday/] If you want to go deeper into the Charles Manson case, my book Charles Manson: The Last Words documents years researching the story and speaking directly with members of the Manson Family — including Charles Manson himself.  Read it here: https://www.amazon.com/dp/B0GQ6QRVQ7 [https://www.amazon.com/dp/B0GQ6QRVQ7] For those who want to examine the evidence directly, complete phone calls and documents are available inside UNMARKED: Case Files, our research portal, along with ad-free episodes. Join here: https://www.patreon.com/Unmarked_TrueCrimePodcast [https://www.patreon.com/Unmarked_TrueCrimePodcast] UNMARKED: A True Crime Podcast is hosted by Audioboom.