The Serial Killer Who Signed Letters “Mr Bunny Rabbit”

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? The handwritten letters I received from Hadden Clark, signed “Mr. Bunny Rabbit,” will be posted in full inside UNMARKED: Case Files, our research portal. Link in bio. Chapters: 0:00 – 4:12 | Inside the Mind of Hadden Clark Correspondence with Clark, FBI agent Lou Luciano’s perspective, and the challenge of separating myth from truth. 4:12 – 10:41 | The Violent Clark Family Abuse, instability, and the childhood that shaped Hadden and his brother Bradfield Clark. 10:41 – 18:59 | Identity, Fantasy, and Early Murder Claims Clark’s disturbing identities, letters, and his controversial confession to the “Lady of the Dunes” case involving Ruth Marie Terry. 18:59 – 24:13 | A Family That Produced Two Killers Bradfield Clark’s shocking murder of Patricia Mack and the shared psychological roots between the brothers. 24:13 – 30:08 | The Murder of Michelle Doerr The abduction and killing of six-year-old Michelle Doerr and Clark’s disturbing burial rituals. 30:08 – End | The Laura Houghteling Murder & Clark’s Arrest Clark’s final known murder of Laura Houghteling, the evidence that exposed him, and the lingering question of how many others there may be. *** 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 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:   / unmarked_truecrimepodcast   If you want to follow the cases as I’m working on them, you can find me on Instagram — @jamesbuddyday #serialkiller #truecrime #truecrimepodcast #crimestory