The Codebreaker’s Last Cipher: State Secret or Fatal Fetish?

Was Gareth Williams a victim of his own private life, or a targeted hit by a foreign intelligence agency? This episode navigates the two warring theories that define this cold case. On one side, the official police conclusion of a "solitary accident" involving claustrophilia; on the other, the coroner's verdict of "unlawful killing" potentially linked to Williams's work on Russian money laundering. We re-examine the timeline of his final days, the £25,000 of unworn designer women's clothing in his closet, and the suspicious "redirection" of the investigation that some say points to an MI6 cover-up.

You can listen to The Codebreaker’s Last Cipher: State Secret or Fatal Fetish? online on Radio and Podcast. Open the player on this page to stream the available audio.

The Codebreaker’s Last Cipher: State Secret or Fatal Fetish? is an episode from UNSOLVED MURDERS by Circle Of Insight Productions.

This episode is 6:06 long.

This episode was published on Apr 26, 2026.

Yes. Use the heart button on the episode page to add it to your favorite episodes list.

Yes. This page shows related episodes from UNSOLVED MURDERS when more episodes are available from the podcast feed.