Murder Mile UK True Crime Podcast - "one of the best British & UK True Crime podcasts"
  • PODCAST
    • About the Host
    • About the Music
    • About the Sound
    • About the Research
    • Legal Disclaimer
  • Shop
  • Blog
  • Contact

Murder Mile UK True-Crime Podcast - #324: Patrick MacKay: Two Sides of a Psychopath - Part A of F (Heidi Ann-Marie Mnilk)

12/11/2025

0 Comments

 
Picture
Five time nominated BEST BRITISH TRUE-CRIME PODCAST at the True Crime Awards, Independent Podcast Award and The British Podcast Awards, and voted 4th Best True-Crime Podcast by This Week, iTunes Top 25 Podcast, Podcast Magazine's Hot 50, The Telegraph's Top 5, Crime & Investigation Top 20 True-Crime Podcasts, also seen on BBC Radio, Sky News, The Guardian and TalkRadio's Podcast of the Week.
Picture
This is a ten-part crossover series written and created by Murder Mile and True Crime Enthusiast. Parts A to F (covering the murders that serial killer Patrick MacKay confessed or was suspected of) are available via Murder Mile, and Parts 1 to 4 (covering the murders he was convicted of, as well as his life, his upbringing and his trial is available via the True Crime Enthusiast podcast.  

PATRICK MACKAY: TWO SIDES OF A PSYCHOPATH: 

This is Part A of F of Patrick MacKay: Two Sides of a Psychopath. .

On Sunday the 8th of July 1973, 17-year-old German tourist Heidi Mnilk boarded the 4:57pm train to Hayes at Charing Cross station. At 5:08pm, just 90 seconds outside of London Bridge station, a scream was heard, she was stabbed and her body was thrown onto the tracks at Bermondsey. 

Her murder has never been solved. But on Thursday 17th of April at Brixton Prison, serial killer Patrick MacKay (awaiting trial for the murders of Adele Price, Isabella Griffith and Father Anthony Crean) confessed to "killing eleven people". One of them, he claimed, was Heidi Mnilk. But did he? This series explores the killings he confessed to, and which he committed. 

  • Location: Abbey Street bridge in Bermondsey, London, UK (body found)
  • Date: Sunday the 8th of July 1973 at 5:08pm (time of murder)
  • Victims: Heidi Ann-Marie Mnilk
  • Culprit: Patrick David MacKay? 
Part A of F by Murder Mile covers the murder of Heidi Mnilk: 

Part 1 of 4 by True Crime Enthusiast covers the murder of Father Anthony Crean: 

SOURCES: a selection sourced from various archives: 
  • Archive files, were opened in 2004, but closed again until 2054.
  • https://discovery.nationalarchives.gov.uk/details/r/C11477630
  • https://discovery.nationalarchives.gov.uk/details/r/C11477628
  • https://discovery.nationalarchives.gov.uk/details/r/C11477629
  • The Daily Telegraph - Mon, 23 Jul 1973
  • https://www.camdennewjournal.co.uk/article/40-year-old-mystery-did-serial-killer-escape-his-cell-beat-mary-hynes-death-kentish-to
  • https://www.thecnj.com/camden/102606/news102606_22.html
  • https://www.islingtontribune.co.uk/article/hynds-killing
  • https://www.islingtontribune.co.uk/article/40-year-old-mystery-did-serial-killer-escape-his-cell-beat-mary-hynes-death-kentish-to
  • Sunday Mirror Sun, 23 Nov 1975
  • The Daily Telegraph Sat, 22 Nov 1975
  • The Daily Telegraph Sat, 05 Jul 1975
  • Daily Post (Merseyside ed.) Sat, 22 Nov 1975
  • Evening Sentinel Fri, 21 Nov 1975
  • Evening Standard Tue, 18 Nov 1975
  • Sunday Mirror Sun, 22 Jul 1973
  • The Guardian Fri, 04 Jul 1975
  • The Sunday People Sun, 22 Jul 1973
  • Sunday Mirror - Sunday 20 April 1975
  • Evening News (London) - Friday 04 July 1975
  • Evening News (London) - Tuesday 24 July 1973
  • Sunday Mirror - Sunday 23 November 1975
  • Maidstone Telegraph - Friday 29 August 1975
  • The Scotsman - Friday 04 July 1975
  • Kent Evening Post - Friday 04 July 1975
  • Evening News (London) - Tuesday 18 November 1975
  • Sunday Express - Sunday 22 July 1973
  • https://www.islingtontribune.co.uk/article/40-year-old-mystery-did-serial-killer-escape-his-cell-beat-mary-hynes-death-kentish-to
  • Wolverhampton Express and Star - Monday 04 March 1974
  • Britain’s Forgotten Serial Killer by John Lucas
  • Psychopath: The Case of Patrick MacKay bvt Tim Clark & John Penycate
  • The Daily Telegraph Mon, 16 Jul 1973
  • The Daily Telegraph Tue, 13 Aug 1974
  • Evening Standard Wed, 30 Oct 1974
  • Evening Standard Wed, 11 Jul 1973
  • Evening Standard Mon, 25 Feb 1974
  • Evening Standard Mon, 12 Aug 1974
  • Sunday Mirror Sun, 07 Oct 1973
  • Evening Post Mon, 12 Aug 1974
  • Evening Post Mon, 12 Aug 1974
  • Evening Standard Thu, 27 Sept 1973
  • Evening Standard Tue, 14 May 1974
  • The Daily Telegraph Thu, 12 Jul 1973
  • Birmingham Evening Mail Wed, 30 Oct 1974
  • Evening Despatch Mon, 12 Aug 1974
  • Liverpool Daily Post (Merseyside ed.) Thu, 12 Jul 1973
  • Daily Mirror Thu, 31 Oct 1974
  • Daily Mirror Mon, 16 Jul 1973
  • Liverpool Daily Post (Merseyside ed.) Thu, 31 Oct 1974
  • Liverpool Daily Post (Merseyside ed.) Fri, 28 Sept 1973
  • Western Daily Press Tue, 13 Aug 1974
  • Western Daily Press Mon, 16 Jul 1973
  • Evening Standard Sat, 14 Jul 1973
  • The Northern Echo (Yorkshire ed.) Thu, 31 Oct 1974
  • Daily Mirror Tue, 10 Jul 1973
  • Sunday Mirror Sun, 23 Nov 1975
  • Sunday Mirror Sun, 23 Nov 1975
  • South Wales Argus Fri, 01 Aug 1975
  • Daily Record Mon, 28 Mar 1988
  • Daily Mirror Mon, 28 Mar 1988
  • Daily Mirror Thu, 12 Jul 1973
  • The Daily Telegraph Sat, 02 Aug 1975
  • Evening Standard Mon, 14 Jan 1985
  • Evening Standard Mon, 06 Sept 1976
  • The Daily Telegraph Tue, 10 Jul 1973
  • The Bolton News Tue, 10 Jul 1973
  • Evening Standard Mon, 09 Jul 1973
  • Daily Mirror - Wednesday 05 January 1977
  • Wolverhampton Express and Star - Monday 19 August 1974
  • Daily Mirror - Wednesday 20 April 1977
  • Evening News (London) - Monday 12 August 1974
  • Evening News (London) - Friday 25 January 1974
  • Daily Mirror - Monday 28 March 1988
  • Sunday Express, Sunday 04 May 1986
  • https://discovery.nationalarchives.gov.uk/details/record?catid=8540760&catln=6
  • Reading Evening Post Sat, 29 Jun 1974
  • The Northern Echo (Yorkshire ed.) Tue, 22 Jan 1974
  • Sunday Independent (Dublin ed.) Sun, 13 Jan 1974
  • Western Daily Press Fri, 09 Aug 1974
  • Sunday Mercury Sun, 13 Jan 1974
  • Sunday Mirror Sun, 20 Apr 1975
  • Daily Mirror Tue, 15 Jan 1974
  • Evening Standard Mon, 14 Jan 1974
  • The Guardian Fri, 09 Aug 1974
  • The Sunday People Sun, 13 Jan 1974
  • Daily Mirror Wed, 16 Jan 1974
  • Shropshire Star - Friday 09 August 1974
  • Daily Mirror - Tuesday 15 January 1974
  • Sunday Express - Sunday 24 February 1974
  • Birmingham Daily Post - Tuesday 07 September 1971
  • Evening News (London) - Friday 18 April 1975
  • Wolverhampton Express and Star - Monday 14 January 1974
  • Sunday Post - Sunday 13 January 1974
  • Daily Express - Tuesday 15 January 1974
  • Daily Express - Monday 14 January 1974
  • Sunday Express - Sunday 13 January 1974
  • Sunday Express - Sunday 13 July 1975
  • The People - Sunday 23 November 1975
  • https://oldshirburnian.org.uk/obituaries/nunn-john-ayscough-g-1925/
  • Fulham and Hammersmith Chronicle Fri, 27 Jun 1975
  • The Daily Telegraph Tue, 24 Jun 1975
  • Sunday Mirror Sun, 23 Nov 1975
  • Evening Standard Tue, 18 Jun 1974
  • Evening News (London) - Tuesday 18 June 1974
  • Evening News (London) - Friday 21 November 1975
  • The People - Sunday 23 November 1975
  • https://www.mylondon.news/news/uk-world-news/london-serial-killer-named-devils-24811821
  • https://www.kentlive.news/news/kent-news/serial-killer-dubbed-devils-disciple-7491391
  • Manchester Evening News Fri, 03 Jan 1975
  • Grimsby Evening Telegraph Mon, 23 Dec 1974
  • Western Daily Press Mon, 23 Dec 1974 ·Page 8
  • Daily Mirror - Tuesday 18 February 1975
  • Evening News (London) - Friday 21 November 1975
  • Daily Mirror - Wednesday 05 February 1975
  • The People - Sunday 23 November 1975
  • https://www.thesun.co.uk/news/32502748/bloodstained-carpet-clue-serial-killer-unsolved-murder/
  • https://www.echo-news.co.uk/news/23473314.tragic-cold-case-westcliffs-ivy-davies-killed-home/
  • https://www.dailymail.co.uk/news/article-12035515/Devils-Disciple-serial-killer-wanders-streets-day-release.html
  • http://news.bbc.co.uk/1/hi/england/essex/3561416.stm
  • https://www.kentonline.co.uk/dartford/news/admit-that-you-killed-my-mother-207047/
  • http://news.bbc.co.uk/1/hi/england/essex/6150166.stm
  • https://www.echo-news.co.uk/news/15142531.new-hope-for-cold-case-detectives-probing-42-year-old-murder-of-westcliff-cafe-owner-ivy-davies/
  • https://www.mirror.co.uk/news/uk-news/son-patrick-mackays-victim-says-29783148
  • https://www.mirror.co.uk/news/uk-news/monster-belgravia-who-slayed-old-24102385

MUSIC:
  • Man in a Bag by Cult With No Name

UNEDITED TRANSCRIPT:

1st May 2023, Bristol bus station in the south-west of England, 73 year old David Groves casually strolls among the mums, kids and elderly, all rightfully oblivious to this tall vague pensioner. With grey hair, a goatee and glasses, a waterproof jacket, grey jogging bottoms and comfortable trainers, he visits the doctors, buys a newspaper, sips a coffee, chats politely, and then, like everyone else, he heads home.

Only home since 2017 has been HMP Leyhill in Gloucestershire, a Category D low-security men’s open prison. Housing low-risk prisoners and offenders nearing the end of their sentence, it has been praised for its rehabilitation of convicts as they rejoin society by providing counselling, training, day-release, they even won an award at the Chelsea Flower Show, which is ironic, given its most infamous inmate.

David Groves is “the UK's longest-serving continuous prisoner”. Sentenced on Friday 21st of November 1975 to life with a minimum of 20 years for the brutal murders of 84-year-old Isabella Griffith, 89-year-old Adele Price and 64-year-old priest Father Anthony Crean, he has been described as “sick”, “twisted”, “sadistic” and “cruel”, he has never shown any remorse, his name is often spoken in the same breath as The Yorkshire Ripper and The Moors Murderers, and being dubbed as “one of Britain’s worst serial killers”, since his teens, he’s been diagnosed by psychiatrists as a ‘cold psychopathic killer’.

Trapped in a cycle of parole rejection, he’s the killer no-one wants to release, and although his lawyers fought to get him committed to Broadmoor due to ‘diminished responsibility’, declared sane, he knew his crimes were evil as he wasn’t mentally unwell but had a ‘severe psychopathic personality disorder’.

David Groves was known as the Monster of Belgravia and the Devil’s Disciple, yet his real name is far more infamous, being a psychotic killer who terrorised elderly ladies of 1970s London and although convicted of those three murders, he confessed and was suspected of as many as eleven, making him possibly one of the Britain’s most prolific serial killers in his two-year-spree – but what’s the truth?

Title: Patrick MacKay: Two Sides of a Psychopath – Part A.

MacKay’s ‘psychopathic personality’ was formed in an adolescence of neglect, abuse and trauma. Born in 1952 in Park Royal, west London, he was raised in Dartford, Kent, to a violent and drunken Scottish father and a battered Guyanese mother, being witness and victim to assaults like it was normal life.

With no good role model to shape his malleable brain, MacKay bullied the weakest, he stole for thrills, he was lonely, abandoned and lashed out in cruel violence, and although his education was broken by stints in borstals, young offenders institutes and mental institutions; he spoke well, he was intelligent, he had a passion for words and storytelling, and a patience to collect stamps and make Air-Fix models.

He was bright, bored, angry, and seen as an underachiever, diagnosed as a ‘psychopath’ aged eleven, his early life became a repetitive catalogue of pointlessness, cruelty, sadism and attention-seeking.

On the 15th of August 1972, 20-year-old MacKay left Moss Side Psychiatric Hospital in Liverpool for the final time. Being discharged against doctor’s wishes, he was unable to live with his widowed mother in Gravesend, Kent, so moving to London, he slept in hostels, and in his own words “I virtually spent a year on the bottle”, necking a half bottle of vodka and 8 to 10 pints of beer a night, and as a user of amphetamines and cannabis, his memory and judgment was clouded by what he called “a white mist”.

The nearest thing he had to family was an auntie in Catford, one in Wandsworth, her friend VI & Bert Cowdry who were like surrogate parents, and an ex-social worker in East Finchley, Reverand Ted Brack.

MacKay was always broke, homeless, lost, and unable to hold down a job for more than a few days – like in February 1973, being hired as a cutter serviceman at Imperial Paper Mills, he was fired having only turned up twice, meaning his report card was marked with ‘waste of time… a split personality’ – he was convicted that season of three petty crimes; the burglary of a tobacconists in Greenhithe where he stole cigars and cigarettes, a grocer’s in Dartford having nicked three tins of Old Oak Ham and some Easter eggs as he was hungry, and in May 1973 – in a theft which led to his capture – he stole a cheque from Father Crean, the man he would later murder, and was given a two year conditional discharge.

It was all very petty and pointless… then two months later, it is said, he committed his first murder.
Terrorising the wealthier parts of west London, across Chelsea and Belgravia, MacKay committed a spree of muggings and robberies on lone elderly widows. Later gaining entry to their homes using his charm, carrying their shopping or asking for ‘a glass of water’, most he stole from, but at least two - Isabella Griffith and Adele Price – he brutally murdered in a short powerful burst of violent rage (some of which he could recall vividly, other parts which were patchy possibly due to drink, drugs, mania or shame) followed by a long period of self-hatred and depression often culminating in a suicide attempt.

On Saturday 6th of April 1975, after his arrest for Father Crean’s murder, and with his fingerprint found on a teaspoon in the burgled home of Margaret Diver, Detective Superintendent John Bland didn’t think much of MacKay; a drunk, a junkie, a loser, who stole to feed his habit, had gone too far by killing a priest in a rage, who was currently awaiting trial for stealing old ladies handbags, and now, a murder.

On Thursday 17th of April in Brixton Prison, DS Bland expected a ‘no comment’ reply to his questions about this spate of muggings of old ladies in the West End, but MacKay was so forthcoming; he openly admitted to two murders the Police hadn’t connected. Of Adele Price, he calmly said “yes, I did that” providing provable details which hadn’t been made public, and of Isabella Griffith, “yeah, I did that”, with DS Bland recalling “he seemed relieved that at last he was telling someone what he had done”…

…but this was not the end of his murderous confession.

MacKay sighed and said “all I want to do is to be frank and honest. But before I start, I have got another murder I want to get off my mind. The only trouble is, I don’t know whether he drowned or not… I threw a vagrant off Hungerford Bridge at Waterloo, and I saw the water open up and take him in”.

It wasn’t until 1988 that it was standard Police procedure to record all interviews, so that confession was only scribbled in a notebook. Taken to Canon Row Police Station to make a written statement, on Tuesday 22nd of April, although DS Bland had heard word that when asked what he was in prison for, MacKay had bragged to other prisoners in the hospital wing “because I killed eleven people”; some he would confess to, some he was suspected of, three he was convicted of, two he was charged with and others matched a series of unsolved London murders, many of which mirrored his method and motive.

Detective Chief Superintendent Bill Ramsey who headed up the investigation stated “it will be at least a week before we can establish if the confession is genuine”, but with three of the eleven (Adele Price, Isabella Griffith and Father Anthony Crean) later proven with so little doubt that even MacKay’s own defence didn’t contest it, the other eight that MacKay was either suspected of or confessed to were…

…Heidi Mnilk, Mary Hynds, Stephanie Britton, Christopher Martin, the unnamed homeless man, Leslie Goodman, Sarah Rodmell & Ivy Davies, many of whom may have been his fledgling forays into murder.

So, if he had murdered eleven people, not three, was his first killing Heidi Mnilk?

Heidi Ann-Marie Mnilk was born on the 12th of November 1955 in Kassel, West Germany, a small but cultural university city being home to the Brothers Grimm and one of Europe's most palatial gardens. As the only child of her father Bruno, who was invalided in the war, his daughter was his everything.

Described as blonde, pretty and slim, although a 17-year-old who caught many man’s eye, in truth she wasn’t cocky or brash, but pleasant, shy and quiet, and having saved up her wage as a pharmaceutical apprentice – not as an au-pair as many sources state – on the 2nd of July 1973, Heidi and her friend Doris Thurau arrived in London on a two-week coach trip, and said to be “nice young women”, they shared a back bedroom in the B&B of the travel agent, Bob & Pauline Isaacson in West Wickham, Kent.

Sunday the 8th of July 1973 was a typically British summer’s day being cold, wet and cloudy. As a keen photographer, Heidi joined a coach of German sightseers at 9am, taking photos of Big Ben, Piccadilly Circus, Buckingham Palace, and in the afternoon, the girls went shopping in Oxford Street and Soho.

Heidi was impossible to lose among the throng of commuters and shoppers, as stylishly dressed in red flared slacks, a red cotton top, a red handbag, black shoes, and a blue and white ¾ length houndstooth checked jacket with a bare midriff, even if he snuck away to take some snaps, you couldn’t miss her.

At 4:50pm, having seen the sights, Heidi & Doris entered Charing Cross station on The Strand, and on Platform 2, they boarded the 4:57pm train to Hayes, using their return tickets to West Wickham. But as Doris wanted to smoke and Heidi passionately disliked the smell, Doris recalled “that is why we split on the train. I went to the smoker’s compartment in the middle and Heidi went into a non-smoker”.

As an old-fashioned Class 201-207 Thumpers train with eight to ten BR Mark 1 coaches painted in a rich maroon livery, the smoking coaches comprised of seven to eight private compartments with six seats and a sliding door, accessed by a corridor up the right-hand-side, or its own door to the platform.

Whereas the non-smoking carriages had no corridor, the only way to access each private compartment was via the platform door, meaning that if Heidi got into trouble, none of the 40 people onboard in her one-quarter-full coach could get into her compartment until the train had stopped at the station, making it a hot-spot for muggings and assaults, which tourists like Heidi wouldn’t have been aware of.

At 4:57pm, the train departed Charing Cross, with Heidi sitting in the left-hand window-seat facing front, and as far as we know, no-one else was in her compartment, as it headed to London Bridge.
At 5:06pm precisely, it departed London Bridge Station and headed to its next stop, New Cross...

…so by 5:08pm, just 90 seconds later, it had picked up speed and was one mile out.

In the next private compartment sat two boys, Andrew Lee (17) and Stephen Arnold (16) of Catford. They recalled “there was nothing unusual, until just past London Bridge”, no shouting, no thuds, “then suddenly there were some screams from the compartment behind”. Said to last around 20 seconds, “it sounded like a young woman’s voice. We thought there was just horseplay going on”. But it wasn’t.

Suddenly, although the train was moving fast, “the carriage door opened in the next compartment… I saw this sort of red thing flapping about… it hung there for a few moments”, a bright flailing blur against a flash of grey as the train thundered faster, “then it fell onto the tracks. By then, the screams had stopped”. Crashing hard onto the steel rails, at first, they thought someone had lost their luggage, but as it rounded a bend, “there was a mop of something resembling hair… it could have been a body”.

Passing the Abbey Street bridge in Bermondsey, Stephen recalled “a man appeared at our window”, up to his waist and peering into their compartment from the outside of the speeding train, “I could see him clearly… he was leaning out and he looked at me… his hair was blown back by the force of the wind. He had this little smirk on his face, as if he was saying ‘oh, it’s all good fun, isn’t it chaps?’”…

…but until the train had stopped six minutes later, there was nothing that anyone could do.

At 5:14pm, the train pulled into New Cross station. The boys recalled “he got out… he was near enough for us to grab him… he hitched up his trousers and just stands there looking at the two of us. It seemed like hours but it must have been seconds, then he turned and fled through the ticket barrier”. No-one stopped him as his return ticket to New Cross was valid, and nobody else onboard had heard a thing.

The boys checked the next compartment which was empty. They reported it to the station staff stating  “that man’s just thrown a girl off the train”, but suspecting a prank, senior trainman Uriah Johnson dismissed it and ordered the train onwards, the boys boarded it, and Heidi’s killing wasn’t reported until the boys got home to Catford Bridge and rang the police, “but they didn’t believe us either”.

A passing train spotted her body, and reported it, but not before she had been hit by several more.
Pathologist, Professor Arthur Mant stated “cuts on her hands showed she had struggled”, injuries to her face and possible strangulation suggested “she may have been unconscious when she was thrown from the train”, and with her cause of death being “a single stab wound to the neck and chest, which pierced her jugular vein” and left little blood in the carriage, she was killed using a five-inch kitchen knife with a brown handle, matching a bloodied blade found 600 feet from the body, two days later.

Detective Chief Inspector Tom Parry of Tower Bridge police station, and DCS ‘Bill’ Ramsey who would later head up the investigation into MacKay’s confession, also investigated the murder of Heidi Mnilk. It was well-covered by the press, a reconstruction appeared on Police 5, 80,000 statements taken with 20,000 premises visited, but it remained hindered as 30 of those 40 passengers didn’t come forward.

With the train only identified later that day, the slightly-bloodied compartment had already been used by as many as 30 commuters in the intervening hours, meaning the crime-scene was contaminated, and no fingerprints were found, just as there were none on the knife to connect it to a viable culprit.

It was described as “a motiveless crime” on a lone young woman. Detectives ruled out robbery as her handbag, purse and gold chain hadn’t been stolen, and although her expensive houndstooth jacket was missing, it could have been taken by the killer, or a passenger, or misplaced in lost property? Sexual assault was dismissed, although maybe it was a failed rape, and revenge couldn’t be proven.

Detective Sergeant Prendergast said the man who exited the train at New Cross station was definitely a local as all the tickets collected were for that station and “he was seen exiting the turnstile through a tunnel underneath the railway track… only a local would know about that”. Oddly, the next stop after New Cross was Catford Bridge where the boys got off, and MacKay was then living with his auntie.

The boys gave a very detailed description of Heidi’s killer who they had seen twice from just feet away. He was described as 5 foot 6, mid-40s, pointed chin, a thin face, with dark greasy swept-back hair “and his face looked like an Arab, or as if he wasn’t shaved”. He was wearing tatty clothes, “a black or dark grey ill-fitting jacket and trousers, and possibly a red or blue check shirt” and “he appeared to be squinting. He had narrow eyes as if he had bad eyesight”. And with a Photo-Fit published in the papers, Tom Herbert, an ex-docker who lodged with MacKay’s aunts in Catford, positively recognised it as him.

On the second day of the investigation, Police interviewed Patrick MacKay, a local drunk with a history of petty theft, but as, back then, assaulting women wasn’t his MO, he was released without charge.

So, had the Police released a fledgling killer to kill again?

MacKay was a likely suspect; he knew London well, he was local, the next stop was his home, he rode that same route to visit his mother in Gravesend, and admitted to carrying knives. Based on the killings he was convicted of – Adele Price, Isabella Griffith and Father Anthony Crean – there are similarities with Heidi’s murder; as little or nothing was stolen, she was killed by a single stab to the neck or chest, and the knife was casually disposed of, as if the killing meant nothing, or he wanted it to be found.

But then, there are dissimilarities which don’t match his known method; as his provable victims were mostly lone elderly widows many of whom were wealthy, not young women who could fight back. He often attacked in houses and behind locked doors, but then, he also struck on streets or doorsteps, and what is this train compartment if it’s not a locked and private space? And although he used knives, he also attacked with a bayonet and an axe, some of whom he stabbed, strangled or bludgeoned.

With MacKay nothing is ever consistent, and if this was his first killing, was he still finding his feet?
Five months before Heidi’s murder, a similar attack occurred on the same trainline in February 1973. With her traumatic tale retold at Southwark Coroner’s Court, this middle-aged blonde Danish woman, known only as ‘Mrs A’ said she got on at Waterloo (the stop between Charing Cross and London Bridge) and – as with Heidi - a man had entered her non-smoking private compartment, and sat opposite her.

They chatted pleasantly at first, as was MacKay’s habit. He asked “are you German”, which she wasn’t but Heidi was. He spat “I hate all Germans especially women”, and pulled out “a five inch kitchen knife with a rivet missing on the handle”, identical to the one reported in the press as used by Heidi’s killer.

She recalled “he had a dreadful hate, I thought he was going to stab me… I kept him talking”, he spoke about Spain, Toronto, roses, art, “and he was taking a refresher course in catering to become a chef”, and as the train pulled into London Bridge Station, she seized the moment, and fled for her life.

His description was remarkably similar to the man suspected of killing Heidi, and she added “he had a terrible smell of oil and boiled onions. His shoes were spattered with fat” like he worked at a burger stall, “his face was badly pockmarked… his hands were filthy, his hair greasy and he seemed to squint”.

After an in-depth investigation which lasted 15 months, on the 30th of October 1974, Dr Arthur Davies of Southwark Coroner’s Court declared “the killer of Heidi Mnlik was a man with a paranoid hatred of German women” and said to be ‘a maniac’, it was determined she was murdered by persons unknown. 

It’s a case which remains unsolved to his day, but did it mark Patrick MacKay’s first failure to kill?
Heidi’s attack wasn’t unique. That trainline was synonymous with assaults on woman to such an extent that they were dubbed the ‘cattle cars’, and by the 1990s, open-plan carriages had become standard.

On the 12th of February 1974, a man “early 30s, unkept, Mediterranean, with black brushed back hair” exposed himself to a woman on a train travelling between Catford and Waterloo, he was armed with a knife. We know it probably wasn’t MacKay, as although single, his crimes lacked any sexual element.

On the 30th of September 1973, two months after Heidi’s murder, the raped and strangled body of 16-year-old Jacqueline Johns was found beside a railway line by Spicer’s Wharf near Chelsea Bridge. But again, MacKay wasn’t a rapist, and he rarely attacked the young, choosing lone and elderly women.

On the 1st of August 1975, Wendy Hall was attacked in a private compartment on the 4:09pm train to Sutton, South London. Stabbed four times in the neck, back and chest, her attacker stole £1, and she survived having pulled the ‘emergency cord’. It matched an attack on a 60-year-old woman travelling from Victoria to Balham, with the man’s face described, as ‘Mrs A’ had, as being “heavily pockmarked”.

Only MacKay’s skin wasn’t pockmarked. And on the 4th of January 1977, Kim Taylor was attacked on the 4:58pm train from Norwood to London Bridge, she was stabbed three times in the shoulder and chest, and survived by pulling the comm’s cord. Detectives stated “this stabbing bears all the hallmarks of others in the last 18 months. We believe the same maniac is responsible… but we have not been able to link it to the murder of Heidi Mnilk”. By which time, MacKay had been in prison for two years.

Two possible suspects were Allan Pearey, the Bexleyheath Rapist, who from 1968 to 1985 attacked young lone women on trains on that same route, or as they walked home. Or Andreas Diomedous, a knife-wielding paranoid schizophrenic who attacked Ann Clements in May 1974 on a train between Clapham and Battersea Park. Convicted of a boy’s murder, and remains locked-up in Broadmoor.

There were many possible suspects, but only one of them had confessed to Heidi’s killing – MacKay.

The press reported that in August 1974 “a 30-year-old Covent Garden porter” had confessed and was being questioning by Police, but one week later, he retracted it. This is often confused for MacKay, but he wasn’t 30, he didn’t work in Covent Garden until January 1975, and with no proof of an arrest, it’s likely this is a reference to Alfred Hitchcock’s 1972 film ‘Frenzy’, whose killer is a Covent Garden grocer.

MacKay confessed “I killed eleven people”, with Heidi possibly being his first, but when the Police dug deeper into his life, his upbringing and his motives, the evidence didn’t stack up to his boastful claims.

The Photo-Fit of Heidi’s attacker, as produced by the boys who saw him in broad daylight from a few feet away, described him as “5 foot 6, mid-40s, pointed chin, oval face, with dark greasy swept-back hair, and squinting like he’d bad eyesight”. ‘Mrs A’, the Dutch woman stated it matched her attacker.

But Patrick MacKay was 23, so 20 years younger. 6 foot 2, so half a foot taller. His face wasn’t pock-marked and thin, but clean and oval. And although, Tom Herbert who lodged at MacKay’s aunt’s house stated that the Photo-Fit matched Patrick MacKay, it can’t have done, as they look totally different.

When MacKay confessed to ‘eleven murders’, he never mentioned Heidi by name, as why would he know his random stranger’s name, and when he confessed to the proven killing of Isabella Griffith, he asked “you mean Cheyne Walk? Yeah, I did that” as it was the killing’s details that sparked his memory.

When quizzed about Heidi’s murder, many details he had gleaned from the newspapers as its coverage was front-page news for months, but when asked to recount the events (as he could in vivid detail in the three killings he was convicted of), MacKay’s memory was often mistaken and sketchy, stating  “from what I was told, she was stabbed once in the throat and flung from a speeding train”. But when asked about what he had stolen from Heidi, he knew nothing about her missing houndstooth jacket.

Detective Chief Superintendent ‘Bill’ Ramsey later commented, “we are not satisfied he was the killer, as a key clue was the disappearance of Heidi’s raincoat… he showed he knew nothing about this”.

It wasn’t the first time he’d potentially lied for his own gain, as when Police investigated the possible drowning of the homeless man by MacKay on Hungerford Bridge, although he stated “I heaved him over… the water sprayed up… he started splashing as though he couldn’t swim… I didn’t care if he sank or not”. Of the three bodies washed up that day, none matched his detailed description of the man, or were attributed to MacKay. So, was he confused, lying, drunk, or was his truth impossible to prove?

An ID parade was held at Brixton Prison. Stephen & Andrew, the boys who had seen Heidi’s killer failed to pick him out, as did ‘Mrs A’ the Dutch lady. Yet Detective Sergeant Prendergast would later query if her tale about being attacked by Heidi’s killer was even true, as many of the details she spoke of had clearly been taken from the news coverage, and some details, it later transpired, were complete lies.

Several of the officers who interviewed MacKay referred to him as “an inveterate liar”, with DI Hart stating “he lies about trivial matters, even when it is unnecessary. Telling lies is part of his way of life”, so when MacKay went to court charged with murder, he withdrew all eight of those additional killings.

He was convicted of three murders, all provable without a shred of doubt in a court of law, and which his defence team wouldn’t contest owing to the weight of evidence. And yet, of those eight killings he confessed to, two of them were strong enough for him to be charged with, and to be used in evidence against him. So was MacKay mistaken when he confessed to Heidi’s murder, as if he didn’t kill her…

…why did he lie?

Part B of ‘Patrick MacKay: Two Sides of a Psychopath’ continues next week, with Part 1 of 4 (covering in detail the killings of Father Crean, Isabella Griffith and Adele Price, as well as MacKay’s life, crimes and trial) available now via as part of this cross-over series with the True Crime Enthusiast podcast.

Just search ‘Patrick MacKay: Two Sides of a Psychopath’, or click on the link in the show-notes.

The Murder Mile UK True Crime Podcast has been researched using the original declassified police investigation files, court records, press reports and as many authentic sources as possible, which are freely available in the public domain, including eye-witness testimony, confessions, autopsy reports, first-hand accounts and independent investigation, where possible. But these documents are only as accurate as those recounting them and recording them, and are always incomplete or full of opinion rather than fact, therefore mistakes and misrepresentations can be made. As stated at the beginning of each episode (and as is clear by the way it is presented) Murder Mile UK True Crime Podcast is a 'dramatisation' of the events and not a documentary, therefore a certain amount of dramatic licence, selective characterisation and story-telling (within logical reason and based on extensive research) has been taken to create a fuller picture. It is not a full and complete representation of the case, the people or the investigation, and therefore should not be taken as such. It is also often (for the sake of clarity, speed and the drama) presented from a single person's perspective, usually (but not exclusively) the victim's, and therefore it will contain a certain level of bias and opinion to get across this single perspective, which may not be the overall opinion of those involved or associated. Murder Mile is just one possible retelling of each case. Murder Mile does not set out to cause any harm or distress to those involved, and those who listen to the podcast or read the transcripts provided should be aware that by accessing anything created by Murder Mile (or any source related to any each) that they may discover some details about a person, an incident or the police investigation itself, that they were unaware of.
0 Comments



Leave a Reply.

    Picture

    Author

    Michael J Buchanan-Dunne is a crime writer, podcaster of Murder Mile UK True Crime and creator of true-crime TV series.

    Become a Patron!
    Picture

    Archives

    December 2025
    November 2025
    October 2025
    September 2025
    August 2025
    July 2025
    June 2025
    May 2025
    April 2025
    March 2025
    February 2025
    January 2025
    December 2024
    November 2024
    October 2024
    September 2024
    August 2024
    July 2024
    June 2024
    May 2024
    April 2024
    March 2024
    February 2024
    January 2024
    November 2023
    October 2023
    September 2023
    August 2023
    July 2023
    June 2023
    May 2023
    April 2023
    March 2023
    February 2023
    December 2022
    November 2022
    October 2022
    September 2022
    August 2022
    July 2022
    June 2022
    May 2022
    April 2022
    March 2022
    February 2022
    December 2021
    November 2021
    October 2021
    September 2021
    August 2021
    July 2021
    June 2021
    May 2021
    April 2021
    March 2021
    February 2021
    January 2021
    December 2020
    November 2020
    October 2020
    September 2020
    August 2020
    July 2020
    June 2020
    May 2020
    April 2020
    March 2020
    February 2020
    December 2019
    November 2019
    October 2019
    September 2019
    August 2019
    July 2019
    June 2019
    May 2019
    April 2019
    March 2019
    January 2019
    December 2018
    November 2018
    September 2018
    August 2018
    July 2018
    May 2018
    April 2018
    March 2018
    February 2018
    January 2018
    December 2017
    November 2017
    October 2017
    September 2017
    July 2017
    June 2017
    May 2017
    April 2017
    March 2017
    February 2017
    January 2017
    December 2016
    November 2016
    October 2016
    September 2016
    August 2016
    July 2016
    June 2016
    May 2016
    April 2016
    March 2016



    Picture
    Subscribe to the Murder Mile true-crime podcast

    Categories

    All
    Adverts
    Assassinations
    Canalkillers
    Cannibal
    Celebrities
    Curious-stuff
    Deadly-families
    Execution Sites
    Forgotten Disasters
    Head Injuries
    Killer Interviews
    Killer Profiles
    Killer's Books
    Killers By Age
    Killers By Birthday
    Killers By Birth Name
    Killers By County
    Killers By Diet
    Killers By Drink
    Killers By Height
    Killers By IQ
    Killers By Job
    Killers By Lunar Cycle
    Killers By Marriage
    Killers By Motive
    Killers By Music
    Killers By Nickname
    Killers By Star Sign
    Killers By Weight
    Killers = Dead Or Alive?
    Killer's Kids
    Killers Last Meals
    Killers Last Words
    Killers Mothers
    Killers Not Caught
    Killers On TV
    Killers & Pets
    Killer's Religion
    Local History
    Mass Graves
    Mistakes
    Murder
    Murder Mile
    Nicknames
    Obsession With True Crime
    Pod
    Podcast
    Poisoners
    Q & A
    Serial Killers
    Soho Murders
    The Dangers Of Booze
    The Innocent
    The Law

    Note: This blog contains only licence-free images or photos shot by myself in compliance with UK & EU copyright laws. If any image breaches these laws, blame Google Images. 

SOCIAL MEDIA

BUSINESS ADDRESS

ABOUT MURDER MILE UK TRUE CRIME

(c) Murder Mile Walks, P O Box 83
15 Ingestre Place, Soho, W1F 0JH
Murder Mile UK True Crime is a true-crime podcast and blog featuring little known cases within London's West End but mostly the square mile of Soho, with new projects in the works
  • PODCAST
    • About the Host
    • About the Music
    • About the Sound
    • About the Research
    • Legal Disclaimer
  • Shop
  • Blog
  • Contact