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Psychopedia: True Crime & Criminal Psychology

Psychopedia: True Crime & Criminal Psychology

By: Investigator Slater
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Summary

 Psychopedia is a captivating true crime podcast hosted by Investigator Slater, where she passionately takes you deep into the darkest recesses of the human psyche each week. A professional investigator by day, Slater uses her investigative expertise to uncover the chilling, hidden details behind each true crime case presented. Even if you think you’ve heard about a particular case before, prepare for a fresh, eye-opening perspective that dives deeper into the facts, psychology, criminology, and the dark truths you never knew. Every episode is presented with the utmost respect for the victims, while keeping you hooked with pop quizzes designed to engage and entertain (and give you a glimpse into Slater's own twisted mind). Prepare for a truly immersive experience—because this is true crime like you've never heard it before. Instagram + TikTok: @psychopediapod @investigatorslater. A podcast in partnership with Audacy.All Rights Reserved. True Crime
Episodes
  • EP183: The Comic Book Killer: Scripted, Skinned and Scalped

    EP183: The Comic Book Killer: Scripted, Skinned and Scalped
    May 13 2026
    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 gruesome and sadistic murders Los Angeles has ever seen. Please listen with caution. FOLLOW AND SUBSCRIBE to Psychopedia wherever you are listening! FOLLOW Investigator Slater on Instagram + TikTok: @investigatorslater Join our Patreon family! (⁠www.Patreon.com/PsychopediaPod⁠) On Patreon, you get AD FREE episodes, exclusive true crime content, behind-the-scenes pics/vids, private group chats, and much more! To learn more about listener data and our privacy practices visit: https://www.audacyinc.com/privacy-policy Learn more about your ad choices. Visit https://podcastchoices.com/adchoices
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    1 hr and 3 mins
  • EP182: Twitter Killer: Japanese Serial Killer Takahiro Shiraishi

    EP182: Twitter Killer: Japanese Serial Killer Takahiro Shiraishi
    May 6 2026
    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 those posts had drawn the attention of a murderous predator. By the end of that year, the investigation led police to a single apartment, where a scene of calculated horror was waiting: nine dismembered bodies with severed heads and mutilated limbs found scattered and hidden in boxes. At the center of it all was Takahiro Shiraishi, later known as “The Twitter Killer,” a man who turned vulnerability into a hunting ground and despair into a lethal weapon. FOLLOW AND SUBSCRIBE to Psychopedia wherever you are listening! FOLLOW Investigator Slater on Instagram + TikTok: @investigatorslater Join our Patreon family! (⁠www.Patreon.com/PsychopediaPod⁠) On Patreon, you get AD FREE episodes, exclusive true crime content, behind-the-scenes pics/vids, private group chats, and much more! To learn more about listener data and our privacy practices visit: https://www.audacyinc.com/privacy-policy Learn more about your ad choices. Visit https://podcastchoices.com/adchoices
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    1 hr and 9 mins
  • EP181: TikTok Cancer Scammer: Madison Russo Fakes Cancer for Clicks

    EP181: TikTok Cancer Scammer: Madison Russo Fakes Cancer for Clicks
    Apr 29 2026
    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 you would expect. They donated, they shared, they rooted for her, watching closely as she posted photos and updates that felt intimate and urgent. Except none of it was real. Not the diagnoses, not the symptoms, not the scans. What looked like a medical nightmare was a performance, constructed piece by piece, persuasive enough to convince strangers around the world to invest in a fight that never existed. And when it finally unraveled, the only thing Maddie had actually built was a very real trail of deception. FOLLOW AND SUBSCRIBE to Psychopedia wherever you are listening! Follow Investigator Slater on Instagram + TikTok: @investigatorslater Join our Patreon family! (⁠www.Patreon.com/PsychopediaPod⁠) On Patreon, you get AD FREE episodes, exclusive true crime content, behind-the-scenes pics/vids, private group chats, and much more! To learn more about listener data and our privacy practices visit: https://www.audacyinc.com/privacy-policy Learn more about your ad choices. Visit https://podcastchoices.com/adchoices
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    1 hr and 3 mins
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Slater is the best at getting all the information about the most interesting cases! Love all the episodes and binged them! 10/10! Highly recommend!!

My favourite podcast!

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I want to be more Mary. Just Mary is an absolute boss. I don't understand how she did what she did but I am here for it all day long!.

Go Mary.

Mary is the fucking boss

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I saw this title and the two hosts and I admit that I thought oh this is a 'Joe Rogan does true crime' right wing podcast. I was ABSOLUTELY proved wrong almost instantly as the intelligently researched crime stories, expertly delivered by investigator Slater and interjected with thoughtful, considered and empathetic remarks from the admittedly 'jacked' Tank Sinatra. That's not to say there isn't humour and 'in jokes' that when you know, you know. Tanks love of hip hop and obviously meme culture comes through in the episodes. Brooke Slater (an actual investigator in her day job working with human trafficking among other things) has a real knack for researching all the key elements of a case and humanising victims as well as her 'pop quizzes' that she posits to Tank and the listener which is a novel feature i personally love. overall an excellent True Crime podcast that only gets better as it goes on and I think will shine through as one of the top of it's genre. Crimedy Chaos Completed supremely.

It is a doozy, great true crime comedy cohorts.

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