13: Hadden Clark: Disturbing Letters from a Serial Killer

Serial killer Hadden Clark is one of the most unsettling figures in modern criminal history — a man whose crimes, confessions, and psychological unraveling have baffled investigators for decades.

In this episode of UNMARKED, we examine the case through the original record. Former FBI agents, primary documents, and Clark’s own words reveal a deeply fractured personality and a disturbing window into the mind of a killer.

Clark’s writings and statements — including letters he sent from prison — offer rare insight into how he saw himself, his crimes, and the strange identities he adopted along the way.

But the deeper question remains: when investigators confront someone like Hadden Clark, what are they really looking at — manipulation, madness, or something far darker?

For those who want to examine the material directly, the complete letters are available inside UNMARKED: Case Files, our research portal, along with ad-free episodes:
https://www.patreon.com/Unmarked_TrueCrimePodcast

Follow UNMARKED for additional case material, updates, and short-form analysis:
• YouTube: @Unmarked_Podcast
• Instagram: @unmarked_podcast
• TikTok: @unmarkedpodcast
• Patreon: /Unmarked_TrueCrimePodcast

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:
https://www.amazon.com/dp/B0GQ6QRVQ7

UNMARKED: A True Crime Podcast is hosted by Audioboom.

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Episoder(60)

58: Lizzie Borden Expert Fact-Checks Netflix’s Monster | Case Notes

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27 Sep 25min

57: A Eugene Horsch Case Update, Casey Anthony & Your Questions

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56: Casey Anthony: The Problem With the Truth

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55: What Creates a Serial Killer? The Psychology of Attachment | Case Notes

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20 Sep 17min

55: The Nick Reiner Pre-Trial Hearing, Lizzie Borden & Your Questions

A shocking case is entering a new chapter as Nick Reiner appears in court for a pre-trial hearing in the deaths of his parents, Rob and Michele Reiner. Prosecutors have decided not to seek the death p...

18 Sep 28min

54: Lizzie Borden: Creating a Monster with Dr. Cara Robertson

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16 Sep 39min

53: Why Did the Lindsay Clancy Trial End in a Mistrial? | Case Notes

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13 Sep 15min

52: The Lindsey Clancy mistrial, Gary Heidnik & Your Questions

Have a question for the show? Leave it in the comments on YouTube or Apple Podcasts, DM @unmarkedpodcast on Instagram, or find me directly @JamesBuddyDay.A controversial case has taken another dramati...

11 Sep 21min