This episode first aired on August 19, 2024. He’s been called many names: the Boogeyman, the Thrill Vulture, the Moon Maniac, the Werewolf of Wysteria… But in life, he was known as Albert Fish and his gruesome crimes redefined the limits of human depravity. 

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This episode first aired on January 15, 2018. On the outside, Jane Toppan seemed like a loving nurse who cared deeply for her patients. But for years, she used her nursing skills to experiment with medicines…and kill the people who trusted her the most. 

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She dressed like a grandmother, lied about her age, and acted like a guardian angel… while secretly killing the very people she claimed to help. At her Sacramento boarding house, Dorothea Puente took in elderly, sick and disabled tenants. But once their social security checks arrived, she killed them, then spent all their money.

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Richard Biegenwald didn’t have a consistent method or a clear motive. He killed out of impulse—sometimes for attention, sometimes for no reason at all. His crimes were scattered, senseless, and terrifyingly casual. From luring teens to shooting strangers, Biegenwald thrived on chaos and unpredictability. With no victim profile and no emotional trigger, he’s a textbook example of a hedonistic thrill killer—driven not by anger or revenge, but by the rush of the act itself.

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Jeffrey Dahmer seemed quiet, even unassuming. But beneath the surface was a man consumed by violent desire. He didn’t kill out of anger—he killed to satisfy a fantasy. Every detail was deliberate, from the way he lured his victims to the way he posed their bodies. Driven by arousal, obsession, and control, he found pleasure not just in death, but in what came after. With his ritualistic methods and fixation on domination, he’s a textbook example of a hedonistic lust killer.

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This Florida cop dedicated his life to fighting crime. But in his mind, the only way to truly clean up the streets, was to become a killer himself. So Manuel “Manny” Pardo killed nine people. And even in jail, he claimed his family would see him as a hero.

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The visionary killer blames their crimes on an external force – an apparition who commands them to kill. In Joseph Kallinger’s case, multiple entities urging him to commit arson… and then, to kill everyone on planet Earth.

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Ted Bundy was calculated, composed, even charming. But behind the polished exterior was a predator obsessed with control. He used manipulation, deceit, and dominance to gain total power over his victims. From his carefully planned attacks to his detailed confessions, Ted Bundy is a textbook case of a power and control killer.

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In 2022, Six weeks after the murders of the Idaho Four, Bryan Kohberger was arrested in Pennsylvania. Fast forward to July of 2025, when just weeks before his trial was set to begin, he pleaded guilty. Later that month, he was sentenced to life in prison. ABC News Kayna Whitworth joins to talk about who Bryan is, what the evidence is, and what role his criminology background may have played in the crimes.

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In the early morning hours of November 13, 2022, four students at the University of Idaho were murdered in their off-campus home. The shocking brutality of the murders garnered media attention while police searched for the killer. But for author and private investigator J. Reuben Appelman, the story was personal: his own daughter was a student at the same college as the victims. And he wanted to know about the people behind the story. Who were Kaylee Goncalves, Madison Mogen, Ethan Chapin, and Xana Kernodle in life?

Keep up with us on Instagram @serialkillerspodcast. J.’s book, While Idaho Slept: The Hunt For Answers in the Murders of Four College Students, is available now.

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