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Forensic Tales

Forensic Tales

By: Rockefeller Audio
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About this listen

 Not all stories have happy endings... A weekly true crime podcast with a forensic twist. Each episode features real stories highlighting how forensic science was used. From fingerprinting to criminal profiling to familial DNA, we have every investigative angle covered.© 2022 Rockefeller Audio LLC Politics & Government Social Sciences True Crime
Episodes
  • The Knifepoint Rapist

    The Knifepoint Rapist
    Jan 26 2026
    #317 - When a pattern emerges in criminal investigations, it often becomes the strongest lead. In Southern California, that pattern pointed to a serial sexual offender who used a knife to control his victims and left DNA behind at multiple scenes. For years, the DNA sat unmatched. Today’s episode examines the San Diego Knifepoint Rapist case, the forensic evidence that connected the assaults, and how modern genetic genealogy transformed a cold case into a solved one. Learn more about your ad choices. Visit megaphone.fm/adchoices
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    47 mins
  • From the Archives: Tiffany Valiante

    From the Archives: Tiffany Valiante
    Jan 19 2026
    From the Archives: The Mysterious Death of Tiffany Valiante In 2015, 18-year-old Tiffany Valiante was struck and killed by a train in New Jersey. Authorities quickly ruled her death a suicide but from the very beginning, her family has insisted that explanation doesn’t make sense. Tiffany had made plans for the future. She had no known history of depression. And crucial pieces of evidence, including her phone, shoes, and the circumstances surrounding how she ended up on the tracks, raised troubling questions that were never fully answered. In this episode, we take a closer look at Tiffany’s final hours, the investigation that followed, and the inconsistencies that continue to fuel doubt years later. Was this truly a suicide… or was something else overlooked? This is a case that has haunted listeners since it first aired and one that deserves another careful listen. Forensic Tales is a Rockefeller Audio production. The show is written and produced my Courtney Fretwell. If you'd like to support the show & get access to early ad-free episodes, please consider joining the show's Patreon page. You can support the show for as low as $3/month. You can also support the show by leaving a positive review & telling friends and family. For a complete list of sources used in this episode, please visit our website. Learn more about your ad choices. Visit megaphone.fm/adchoices
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    45 mins
  • Marvin Grimm Jr

    Marvin Grimm Jr
    Jan 12 2026
    #315 - In 1975, a three-year-old boy disappeared in Richmond, Virginia. Days later, his body was found in the James River, and a young neighbor, Marvin Grimm Jr., became the focus of the investigation. After hours of interrogation, Marvin confessed and later pleaded guilty. He was sentenced to life in prison. But decades later, advances in forensic science told a very different story. DNA testing excluded Marvin from every piece of biological evidence in the case. Experts identified clear red flags in his confession. And toxicology analysis made the prosecution’s timeline impossible. In 2024, nearly fifty years after his conviction, the courts ruled that Marvin Grimm Jr. was innocent. This episode examines how a confession, outdated forensic assumptions, and the absence of modern DNA testing combined to produce a devastating wrongful conviction, and how science ultimately helped set the record straight. Learn more about your ad choices. Visit megaphone.fm/adchoices
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    45 mins
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