international investigation

The Case of Iwona Wieczorek is a 2023 Polish true crime docuseries about the unsolved disappearance of 19-year-old Iwona Wieczorek, who vanished near Gdańsk in July 2010. Streams on Viaplay and Netflix Poland.

Murder 24/7 is a BBC true crime documentary series following live murder investigations by UK police forces, streaming on BBC iPlayer across three series from 2020.

Bloodline Detectives is a documentary series hosted by Nancy Grace that revisits unsolved cold cases — murders spanning decades — solved through genetic genealogy and familial DNA searching.

The true crime duo behind hit podcast Anatomy of Murder is launching a new show called Homicide 360, promising to take listeners inside real murder investigations.

Murder Sheet is a weekly American true crime podcast hosted by journalist Áine Cain and attorney Kevin Greenlee, covering cases like the Delphi murders, the Burger Chef murders, and the Bryan Kohberger case with journalistic rigor and legal expertise.

Pushkin Industries' new investigative podcast Valley of Shadows spans 8 episodes in which journalists Hayley Fox and Betsy Shepherd examine classified police archives and exclusive wiretap recordings to uncover what happened to a missing deputy sheriff.

Ashley Flowers and Audiochuck are behind a new weekly podcast, The Deck, presenting one unsolved cold case to listeners around the world every single week.

James 'Whitey' Bulger was a Boston mob boss and FBI informant convicted of racketeering and 19 murders in 2013, later killed in prison in 2018.

The Mostly Harmless case is the death and two-year identification mystery of hiker Vance John Rodriguez, found deceased in Florida in July 2018.

The Tupac and Biggie murders are two officially unsolved US drive-by homicide cases from 1996 and 1997, killing rappers Tupac Shakur in Las Vegas and Notorious B.I.G. in Los Angeles.

The Crystal Theobald case is a 2006 mistaken-identity gang shooting in Riverside, California, where a 24-year-old mother was killed in a drive-by attack later solved through her family's MySpace investigation.

The Isabella Stewart Gardner Museum heist is an unsolved 1990 art robbery in Boston, where two men posing as police officers stole 13 artworks worth an estimated $500 million.

The Joe Moore KKK infiltration case is a Florida FBI operation in which informant Joseph Moore exposed a 2013 plot by three Klan-affiliated prison guards to murder a Black former inmate.

The Kaitlyn Arquette case is a 1989 American murder in which 18-year-old Kaitlyn Arquette, daughter of author Lois Duncan, was shot in her car in Albuquerque, New Mexico.

The Matthew Perry death investigation is a US federal drug case in which five defendants were charged over the ketamine distribution network that supplied the Friends actor before his October 2023 overdose death.

Serial is the groundbreaking 2014 podcast in which journalist Sarah Koenig investigates the murder of Hae Min Lee and the conviction of Adnan Syed. The podcast became a global sensation and set new standards for investigative journalism.

The Netflix documentary series tells the story of 14-year-old Elizabeth Smart's kidnapping from her own home in Salt Lake City in 2002 and the nine months she spent in captivity under Brian David Mitchell.

Christina Block, daughter of German billionaire Claus-Peter Block, was abducted from her property in Hamburg-Sasel on 14 December 2024 in a highly organised operation that shocked Germany. The case triggered a massive investigation spanning multiple countries, with arrests made in Poland and leads pursued in Denmark. It became one of the most high-profile criminal cases in northern Germany in recent memory.

Carl Patton murdered multiple victims across three decades in Georgia, dumping bodies in the Flint River and evading justice until DNA evidence linked him to the crimes in the early 2000s.

Petra Fehre was shot in the head on the Inca Trail in Peru on August 11, 1997. Now ARD reconstructs the case that revealed her own husband was behind it—all for a 300,000 Deutsche Mark life insurance payout.