Forensic Files

Mrs. Sherlock Holmes | Criminal Podcast

Criminal | A Podcast About Crime

  • Jul 29, 2026
  • 27:02
  • Full Episode

In 1917, 18-year-old Ruth Cruger disappeared. She’d last been seen getting her ice skates sharpened in the motorcycle shop of a man named Alfredo Cocchi. Newspapers reported that she probably ran off with a boyfriend, and New York police said that there were no clues to go on. But an investigator named Grace Quackenbos Humiston decided that she would do whatever it took to find her. She became known as “Mrs. Sherlock Holmes.”

Criminal is a show about people who’ve done wrong, been wronged, or gotten caught somewhere in the middle. Hosted by Phoebe Judge. Part of the Vox Media Podcast Network.

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Episode 123 originally published September 27, 2019. https://thisiscriminal.com/episode-123-mrs-sherlock-holmes-9-27-2019/

Music in this episode: “Bedroll” by Blue Dot Sessions “Cat's Eye” by Blue Dot Sessions “The Blotter (Original Music for Criminal)” by Blue Dot Sessions “Rate Sheet” by Blue Dot Sessions “Laser Focus” by Blue Dot Sessions “Awaiting an Arrival” by Blue Dot Sessions “Fermin Canyon” by Blue Dot Sessions “Paper Trail (Original Music for Criminal)” by Blue Dot Sessions

Brief Summary

Ruth Cruger went missing in 1917; detective Grace Humiston led the investigation that uncovered her tragic fate.

Key points

  • Ruth Cruger Disappears. On February 16, 1917, 18-year-old Ruth Cruger mysteriously vanished, sparking widespread concern.
  • Grace Humiston Takes Charge. Grace Humiston, a determined investigator, vows to find Ruth Cruger after the police fail.
  • Ruth's Body Discovered. Grace Humiston's relentless search leads to the discovery of Ruth's body buried in a motorcycle shop.
  • Alfredo Cocchi's Arrest. After Ruth's body is found, authorities track down Alfredo Cocchi in Italy.
  • Grace Becomes NYPD's First Female Detective. Following her success, Grace Humiston is appointed as the first official female detective in New York.
  • Grace Becomes First Female Detective. Grace is appointed as New York's first female detective, heading the missing persons bureau.

Tension

85/ 100High tension

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