#236 - Patrick MacKay: Two Sides of a Psychopath - Part C (Stephanie Britton & Christopher Martin)

Murder Mile UK True Crime

Murder Mile UK True-Crime Podcast

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4.7 • 1.9K Ratings

🗓️ 27 November 2025

⏱️ 69 minutes

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Summary

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

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Transcript

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0:00.0	Welcome to Always True Crime, a podcast network bringing you gripping real-life stories that you won't be able to stop thinking about.
0:08.2	Discover your next true crime obsession at alwaystruecrime.com.
0:19.7	Maniac, monster, crazed.
0:21.6	These are the words preceding Mackay's name in every article written about him.
0:26.6	And it's how he's been described by psychiatrists since his first diagnosis as a psychopath, aged 11.
0:33.6	But it wasn't a mental illness manageable by drugs, but an untreatable personality disorder caused by neglect and abuse,
0:43.3	in which he would try to solve his emotional problems with violence.
0:48.5	In his 40-page memoir written in Brixton Prison before his trial, Mackay stated,
1:00.3	I only had the best intentions of living my life, but one cannot, unfortunately, always foresee certain types of stigmas that can form in such an imperfect world.
1:06.1	As being a boy who distrusted adults, the system, and was bounced between institutions.
1:11.9	The only consistency in his life was solitude, violence and drink.
1:19.1	July 96, age 14, four years after the death of his drunken father, who he idolized but
1:25.5	never grieved, Mackay was sent to West Hill in Dartford, one of many psychiatric hospitals, where
1:31.3	as a young boy he spent many of his formative years.
1:35.3	January, 1967, age 15, he was back at West Hill.
1:40.3	May 68, age 16, he was at Gravesend. At October, charged with the robbery in GBAH of a 12-year-old boy, he was held at Mossside Hospital in Liverpool,
1:50.0	hundreds of miles from his home in Kent, and bounced from Mossside to Stonehouse in Dartford,
1:56.0	as a succession of doctors had no idea what to do with him.
1:59.0	How could he grow up to be normal if he'd been told that he was a maniac and a monster?
2:07.8	Medical experts stated he wasn't mentally unwell, but plagued by depression and
2:12.5	suicidal attempts, in which many times he tried to drown himself, stab himself, or jump in
2:17.4	in front of a train. Were they a cry for help? Were they spawned by a sense of shame? And were hospitals the only places he felt loved or accepted. Patrick Mackay, two sides of a psychopath, Part C.
	...

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