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Death of a Codebreaker podcast artwork
True Crime

Death of a Codebreaker

by BBC Radio Wales
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Latest episodes

  • 6. Justice for Gareth

    December 5, 2023 · 28 min

    In the sixth and final episode of Death of a Codebreaker, Dr Sian Williams asks what justice for Gareth Williams would look like. She hears from Jim Frazer, the forensic scientist who carried out a review into the case 11 years ago as well…

  • 5: Private Passions

    November 28, 2023 · 28 min

    Young Welshman Gareth Williams was found naked inside a relatively small bag in his bath in 2010. And another theory is that he was the victim of a bizarre sex game gone wrong. There are suggestions he may have had an interest in…

  • 4: Russia

    November 21, 2023 · 28 min

    With so many unanswered questions, different theories about what exactly happened to young Welshman Gareth Williams in summer 2010 remain rife. One suggestion is that he was assassinated by a rogue state. A former KGB intelligence officer…

  • 3. Unanswered Questions

    November 14, 2023 · 28 min

    The inquest into codebreaker Gareth Williams' death threw up many still-unanswered questions about the circumstances surrounding how he died. Here, Dr Sian Williams examines more closely some of the evidence that came to light during the…

  • 2. Body in a Bag

    November 7, 2023 · 28 min

    From the outset, one big question has haunted detectives looking into the death of young Welshman Gareth Williams. How could his body have ended up locked inside a relatively small bag in the bath at his apartment in Central London?! In…

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  • 1. The Cursed Genius

    November 7, 2023 · 28 min

    Young Welshman Gareth Williams was a child prodigy who became a talented mathematician and codebreaker working for GCHQ, MI6 and the intelligence services but in the summer of 2010 he was found dead in a bag in the bath at his apartment in…

  • Death of a Codebreaker…. Coming soon

    October 31, 2023 · 2 min

    Dr Sian Williams leads a team charting the story of the Welsh codebreaker whose naked and decomposing body was found inside a bag in his bath at his flat in Central London in August 2010. Mystery still surrounds how and why Gareth…

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About the show

Dr Sian Williams investigates the story of the Welsh codebreaker whose naked body was found inside a bag in his bath. Mystery still surrounds how and why Gareth Williams died.