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Psychopedia: True Crime & Criminal Psychology

Psychopedia: True Crime & Criminal Psychology

Investigator Slater 217 episodes Latest Jun 1, 2026

Psychopedia is a true crime podcast hosted by Investigator Slater, a professional investigator who delves into the darkest aspects of the human psyche. Each week, she uncovers hidden details and provides fresh perspectives on well-known cases, focusing on facts, psychology, and criminology. The episodes are presented with respect for victims and include interactive pop quizzes for listeners. The podcast is produced in partnership with Audacy.

Episodes

EP 187: d4vd: "Romantic Homicide" Jun 12, 2026 4721 TRIGGER WARNING: Please note that this episode contains discussions of pedophilia, grooming, and graphic violence involving a 14-year-old girl.  Additionally, please note that this investigation remains active and ongoing. Ergo (noice): all statements regarding alleged conduct discussed in this episode are allegations only, and all individuals mentioned are presumed innocent unless and until prove
EP186: Craig's List (Serial?) Killer Jun 3, 2026 4558 TRIGGER WARNING: This episode contains discussions of child sexual abuse.  Please listen with caution. According to 18-year-old killer Miranda Barbour, between the ages of thirteen and eighteen she participated in a cross-country satanic killing spree that claimed at least twenty-two victims. While those claims have never been substantiated, what was proven in court was the brutal murder of 42-ye
EP185: Mormon Sex in Chains: Joyce McKinney Jun 1, 2026 4498 Former beauty queen, ex-Mormon, and alleged “love-obsessed” Joyce McKinney flew across the world, handcuffed her ex-lover to a bed in rural England, and forced him into what the British press dubbed “sex in chains.” But beneath the campy headlines and late-1970s media circus was something far darker and stranger: a disturbed woman who insisted she was rescuing the man she loved from a religious cu
EP184: Waffle House Massacre: The Taylor Swift-Obsessed Shooter May 20, 2026 3611 On April 22, 2018, a partially naked young man named Travis Reinking opened fire with an AR-15 rifle at a Waffle House in Antioch, Tennessee, killing four innocent people and injuring others. He had a documented history of erratic behavior, including delusions that Taylor Swift was stalking him, as well as a 2017 arrest in Washington, D.C., after attempting to breach White House security. That inc
Introducing Family Lore May 15, 2026 182 Looking for more mystery to fill your week? While this isn’t a Psychopedia production, we're excited to introduce you to another podcast we think you’ll enjoy. Family Lore is a weekly narrative podcast that celebrates and investigates ancestral mystique. Each episode begins with a guest sharing a fascinating family legend, followed by a historical deep-dive to uncover the truth and meaning behind
EP183: The Comic Book Killer: Scripted, Skinned and Scalped May 13, 2026 3803 In May 2016, Blake Leibel - a Canadian comic book creator and aspiring Hollywood filmmaker -brutally murdered his girlfriend, Iana Kasian, in their Los Angeles apartment. Iana’s body bore injuries so horrific they seemed ripped from the pages of Blake’s own graphic novel, Syndrome, which depicted eerily similar acts of torture and mutilation.  This tragic case is widely regarded as one of the most
EP182: Twitter Killer: Japanese Serial Killer Takahiro Shiraishi May 6, 2026 4161 TRIGGER WARNING: This episode contains discussions of suicide and may be distressing to hear.  Please listen with caution.In 2017, a series of disappearances began to ripple through Zama, just outside Tokyo. The victims were young women between the ages of 17 and 26 who all left behind the same digital footprint: Twitter posts expressing a desire to die. What no one realized at the time was that t
EP181: TikTok Cancer Scammer: Madison Russo Fakes Cancer for Clicks Apr 29, 2026 3755 From 2022 to 2023, 19-year-old Madison Russo documented what she claimed was a relentless fight for her life, drawing in thousands of followers and raising nearly $40,000 on GoFundMe. She said she was battling acute lymphoblastic leukemia, Stage 2 pancreatic cancer, and a tumor “the size of a football” wrapped around her spine. The story was catastrophic by design, and people responded exactly as
EP180: Serial Killer Nun: Holy Hellhouse Apr 22, 2026 4291 Abbess Mariam, better known as “Mother Rasputin,”  has been described as one of the most prolific female serial killers in modern history.  She cloaked herself in the authority of a Greek Old Calendarist Orthodox abbess while running something far darker than a monastery. Between 1939 and 1950, she was found guilty of a staggering range of crimes, including multiple murders and fraud, but the char
EP179: Meet Me. Hurt Me. Kill Me. Apr 15, 2026 3690 TRIGGER WARNING: This episode contains discussions of suicide and may be distressing to hear.  Please listen with caution. In the tragic and recent case of Sonia Exelby, a vulnerable woman in the UK went online to arrange for her own death.  Sadly, she connected with a sadistic man in the U.S. named Dwain Hall, who framed her murder as mercy while investigators uncovered evidence of manipulation,
EP178: Burned, Not Silenced: The Woman Who Testified From Beyond the Grave Apr 8, 2026 3659 This is the extraordinary case of Judy Malinowski, the first person in American history to testify from beyond the grave at her own murder trial.  In 2017, Judy's life was shattered when her boyfriend doused her in gasoline and set her on fire.  She was left to endure nearly two years of relentless pain, dozens of surgeries, and the heartbreak of not being able to raise her two children. Determine
EP177: Krugersdorp Cult (Part 2): A Satan-Influenced Cult of Killers Apr 3, 2026 3664 In Part 2 of our in-depth coverage of the "Devilsdorp" cult, the brutal murders introduced in Part 1 take on a new meaning.  What initially appeared to be isolated, occult-linked attacks starts to reveal a far more calculated pattern.  Because this was never about religion.  As the case progresses into trial, Part 2 unpacks the roles of those involved in the gruesome murders of 11 individuals and

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