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November 26, 2025 68 mins

This is Part C of F of Patrick MacKay: Two Sides of a Psychopath, about the killing of Stephanie Britton and Christopher Martin.


On the night of Friday 11th of January 1974, inside the six-bedroomed home called ‘The Mercers’ on Hadley Green Road in Barnet, north-west London, the bodies of 58-year-old window Stephanie Britton and her 4-year-old grandson Christopher Martin were found. This was two of the additional eight murders that British serial killer Patrick MacKay was suspected of, but why would he deny it?


This series explores the killings he confessed to, and which he committed. 


  • Location: ‘The Mercers’, Hadley Green Road, Barnet, London, UK, EN5
  • Date: Friday 11th of January 1974, time of killing between 8:30pm and 10pm
  • Victims: Stephanie Elizabeth Britton (was Nunn) & Christopher Jan Nicholas Martin
  • Culprit: Patrick David MacKay? 


For Parts 1 to 4 covering the life of Patrick MacKay, his crimes, his trial and the three murders he was convicted of, check out Patrick MacKay: Two Sides of a Psychopath by True Crime Enthusiast


This episode features a promo for Crime Salad.


Five time nominated at the True Crime Awards, Independent Podcast Awards and the British Podcast Awards, Murder Mile is one of the best UK / British true crime podcasts covering only 20 square miles of West London. It is researched, written and performed by Michael of Murder Mile UK True Crime Podcast with the main musical themes written and performed by Erik Stein and Jon Boux of Cult With No Name and additional music, as used under the Creative Commons License 4.0. A full listing of tracks used and a full transcript for each episode is listed here and a legal disclaimer.


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