50 Chilling Unsolved Murder Mysteries | Calm True Crime Stories Podcast for Sleep
This video explores 50 chilling unsolved murder mysteries and cold cases from around the world. These stories remain some of the most baffling investigations in criminal history. The video is presented in a calm documentary style and focuses on the historical investigations surrounding these cases.

This long true crime documentary examines famous cold cases where the killer was never identified or brought to justice.

Perfect for relaxing listening, this episode of Sleeping Through History presents hours of mysterious crimes and historical cold cases from across the globe, spanning more than a century of unsolved killings that continue to haunt investigators to this day.

Sleeping Through History is a series of long-form historical storytelling videos designed for background listening, relaxation, or sleep. Each episode explores real historical events, mysteries, and tragedies through calm narration and atmospheric storytelling.

This video contains over 7 hours of disturbing unsolved murder cases, cold cases, and true crime stories, making it perfect for viewers who enjoy long documentaries or calm storytelling to listen to while relaxing or falling asleep.

Timestamps / Case Index
Cases featured in this video include:

0:00:00 Intro
0:02:00 1. The Hinterkaifeck Murders (1922, Germany)
0:12:46 2. The Axeman of New Orleans (1918–1919, USA)
0:24:46 3. The Keddie Cabin Murders (1981, USA)
0:34:27 4. The Grimes Sisters (1956, USA)
0:42:47 5. The Black Dahlia (1947, USA)
0:54:55 6. The Oakland County Child Killer (1976–1977, USA)
1:07:32 7. The Burger Chef Murders (1978, USA)
1:16:33 8. The Witchcraft Murder of Charles Walton (1945, England)
1:23:18 9. The Villisca Axe Murders (1912, USA)
1:32:19 10. The Freeway Phantom (1971–1972, USA)
1:44:21 11. The Servant Girl Annihilator (1884–1885, USA)
1:52:12 12. The Murder of Elizabeth Barraza (2019, USA)
1:59:09 13. The Spy in the Bag – Gareth Williams (2010, England)
2:10:13 14. Torso in the Thames – Adam (2001, England)
2:18:55 15. The Texarkana Phantom Killer (1946, USA)
2:27:20 16. The Amber Hagerman Case (1996, USA)
2:34:59 17. The Monster of Florence (1968–1985, Italy)
2:47:19 18. The Murder of Sister Cathy Cesnik (1969, USA)
2:56:19 19. The Cleveland Torso Murderer (1934–1938, USA)
3:05:00 20. The Alphabet Murders (1971–1973, USA)
3:12:14 21. Bella in the Wych Elm (1943, England)
3:20:28 22. The Brabant Killers (1982–1985, Belgium)
3:33:29 23. The Murder of Betsy Aardsma (1969, USA)
3:40:30 24. Bible John (1968–1969, Scotland)
3:49:49 25. The Chicago Tylenol Murders (1982, USA)
4:02:56 26. The Boy in the Box (1957, USA)
4:11:37 27. Jack the Stripper (1964–1965, England)
4:20:42 28. The Sumter County Murders (1976, USA)
4:27:48 29. The West Mesa Murders (1999–2005, USA)
4:35:21 30. The Robison Family Murders (1968, USA)
4:43:07 31. The Murder of JonBenet Ramsey (1996, USA)
4:55:10 32. The Jamison Family Deaths (2009, USA)
5:02:02 33. The Wonderland Murders (1981, USA)
5:09:32 34. The Murder of the Bricca Family (1966, USA)
5:15:47 35. The Evangelist Murders (1929, USA)
5:25:17 36. Zodiac – Lake Berryessa Attack (1969, USA)
5:34:00 37. The Gatton Murders (1898, Australia)
5:42:00 38. The Murder of Marilyn Sheppard (1954, USA)
5:49:35 39. The Investor Murders (1982, USA)
5:59:57 40. The Hall-Mills Murders (1922, USA)
6:09:08 41. The Murder of the Dermond Couple (2014, USA)
6:16:03 42. The Jeannette DePalma Case (1972, USA)
6:23:48 43. The Honolulu Strangler (1985–1986, USA)
6:31:50 44. The Lane Bryant Murders (2008, USA)
6:38:33 45. The Beaumont Children (1966, Australia)
6:45:56 46. The Oklahoma Girl Scout Murders (1977, USA)
6:53:53 47. Jack the Ripper – The Murder of Mary Jane Kelly (1888, England)
7:02:04 48. The Murder of Bob Crane (1978, USA)
7:10:41 49. The Wanda Beach Murders (1965, Australia)
7:17:51 50. The Setagaya Family Murders (2000, Japan)
7:24:49 Outro

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