
4 Hours of Classic True Crime To Fall Asleep To (2024)
Between 1940 and 1957, a serial bomber terrorized New York by hiding explosives in public places, including libraries and train stations. Authorities faced challenges in identifying and apprehending the offender amid a city plagued by organized crime and unsolved violent crimes.

4 Hours of Serial Killers Documentaries No Intro, Outro, or Make-up (2023)
Six true crime cases involving serial killers are detailed, including Michael Ross, Marie Hilley, Robert Lee Bennet, Sylvia Seegrist, Herbert Mullin, and Matias Reyes. Each case outlines murders, investigations, and criminal psychology aspects.

4 Kids Butchered with 80 Slashes And the Neighbors Heard Nothing (2026)
Four Tan siblings were murdered in their Singapore home in 1979 by an intruder who entered without forced entry. Their mother found them piled in the toilet after returning from a phone call. The crime remained unsolved for over four decades.

4 Monsters, 4 Victims! | Nightmare Next Door | Season 1 Episode 4 (2026)
Four individuals were killed in a 2004 McKinney, Texas robbery gone wrong. The Truett Street killings remained unsolved for years, involving false confessions, DNA evidence, and forensic breakthroughs that ultimately led to the perpetrators' identification.

4 Most Disturbing Cases You've Ever Heard Of True Crime Revisited 7 (2024)
This video examines four disturbing true crime cases, including the 1999 disappearance of Hae Min Lee, the 2003 murder of Michelle Wilkins, and the 2002 abduction of Cristina Pangalangan. It also details the 1996 Kevin Bacon case, highlighting investigations and unresolved mysteries linked to each incident.

4 Most Disturbing Cases You've Ever Heard! True Crime Documentary (2024)
The Dupont de Ligonnès murders, Kayla Hodgson's case, Idaho University killings, and Lorraine Cox's incident are among four disturbing true crime stories explored, highlighting complex investigations and unresolved mysteries.

4 Most Disturbing Murders On CHRISTMAS True Crime Documentary (2023)
Four Christmas-related murders are detailed, involving victims Ronald Gene Simmons, Patty White, Marian McLean, and Joana Yeates. Investigations into their killings remain unresolved, highlighting unsolved cold cases linked to holiday periods.

4 Most Insane Stories You've Ever Heard Of True Crime (2024)
The video explores four true crime cases with unexpected twists, including the disappearance of Grace Millane, the murder of Nikki Addimando, the tragic fate of Laura Smither, and the mysterious death of Susana Morales, each highlighting chilling details and unresolved mysteries.

4 Murders in 48 Hours: A Taxi Driver and A Triple Homicide (2025)
In 1993, Barrie, Ontario, experienced a series of violent crimes, including the murder of cab driver Fred Shapot and a triple homicide of Ellsworth Beers, Pamela Constable, and Scott Seabbrook. Investigators faced challenges as police pursued escaped convicts without success, leaving limited clues such as a bloody sock, complex knots, and an unidentified fingerprint. Surveillance footage later cleared suspects, leading to the killer's identification.

4 Nerds. 1 Murder Plot. 0 Coordination. (2026)
No case details or victim/offender information were provided in the source material. The text includes disclaimers and links unrelated to a specific event or investigation.

4 Of The Most Disturbing Cases The FBI Has Ever Solved (2025)
The FBI investigated missing Miami models and a Motown Mogul suspected of triple murders, alongside other crimes like narcotics and kidnapping. Cases were depicted through dramatizations and interviews with agents and forensic experts in the series.

4 Old Criminals Who Chose Crime Over Retirement (2026)
Four elderly individuals were arrested in incidents captured on bodycam footage, challenging stereotypes about age and criminal behavior. Officers encountered them choosing to break laws over retirement, highlighting that criminal activity is not confined to any age group.