How They Caught Dennis Nilsen
Dylan Frost© Copyright 2025 Dylan Frost
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ContentsWho Was Dennis Nilsen?How They Caught Dennis Nilsen Part 1How They Caught Dennis Nilsen Part 2How They Caught Dennis Nilsen Part 3How They Caught Dennis Nilsen Part 4What happened to Dennis Nilsen Afterwards?Photo CreditWHO WAS DENNIS NILSEN?Dennis
Andrew Nilsen was born in 1945 in Fraserburgh, Aberdeenshire, Scotland.
Nilsen is one of the most disturbing serial killers in British criminal
history and although his precise kill count is hard to verify only the
likes of Harold Shipman were more conclusively prolific than Nilsen
when it comes to murder. Nilsen eventually confessed to murdering
fifteen men and said he tried to kill others. A number of men also
reported incidents where they (fortunately) managed to fight back
escape from Nilsen after they went back to his flat and he turned
violent. So when you add attempted murder you can see that Nilsen was a
very active and dangerous killer who would have murdered many more
people given the chance. There are believed to be other victims too who
Nilsen simply couldn't remember many details about because he was drunk
at the time. Sadly, some of the victims of Nilsen will likely never be
identified and his true kill count is impossible to know for certain.
Nilsen's dreadful and shocking killing spree took place from 1978 to
1983. Dennis Nilsen's confirmed verified victims are Kenneth Ockenden,
Martyn Duffey, William Sutherland, Stephen Holmes, Malcolm Barlow, John
Howlett and Stephen Sinclair. Nilsen would often strangle the
victims and sometimes then drowned them in the bath just to make sure
they were dead. He sometimes used a necktie to strangle them and would
strike at opportune moments - like when they were asleep or listening
to music through headphones. Nilsen would strike when victims were
vulnerable and not alert. By this stage he had gained their trust so
the last thing they expected was that Nilsen would suddenly attack
them. He chose his victims carefully and tried to isolate men who would
not pose a physical challenge to him. Many of Nilsen's victims were
small and none of them were over the age of 27. There were though men
who bravely fought Nilsen off and escaped - though sadly the police
(rather shamefully) failed to take any action when these allegations
were reported to them. Nilsen was famously into necrophilia and this
deviant and horrendous pastime was the grim primary motivation for his
murders. The necrophilia was what set the Nilsen case apart from your
usual serial murdering lunatic. Nilsen was one of the few British
serial killers who strayed into that icky and highly disturbing Ed
Gein/Jeffrey Dahmer sort of territory. Nilsen said he murdered those
men because he didn't want his victims to ever be able to leave him.
Nilsen said it the fear of being alone which drove him to commit his
depraved and shocking crimes. Nilsen would kill someone and
then keep the body in his flat as long as he could for company. For
this reason he sometimes became known as The Company Killer. Nilsen
admitted that he used to talk to the corpses of his victims as if they
were still alive. He would bathe them, watch television with them and
enjoy having some 'company' for a change. But this company could only
ever be temporary. At some point Nilsen would have no choice but to
dissect the body and dispose of the remains. And this complication,
ultimately, is what led to his downfall and capture. As a young man,
Nilsen was enraptured by a painting called The Raft of the Medusa by
the French Romantic painter and lithographer Théodore Géricault. The
painting depicts the French naval ship Méduse as it arrives in
Mauritania on July 5, 1816 after experiencing problems on the journey.
There was great damage to the Meduse and large numbers of casualties
among the crew. This gruesome painting, with its homoerotic undertones,
greatly appealed to Nilsen. Nilsen was always drawn to the bleak and
macabre. He had dark thoughts and fantasies which, in the end, he
became tragically determined to act upon and make a reality. The
deluded Nilsen was odd in that he thought everyone was secretly like
him but simply not brave or honest enough to act on it. He believed
that most people fantasised about being a serial killer. What
made Nilsen chilling is that he came across as dull, unthreatening and
fairly ordinary in real life. He wore glasses and enjoyed listening to
music and watching old black and white films. Most people who met him
seemed to find Nilsen quite a boring and pedantic sort of person. While
there was a grumpiness to Bilsen and he was one of those people who
rarely smiled, the victims who went back to his flat were patently
lulled into a false sense of security. They clearly had no idea this
man was dark and dangerous and full of bad intentions. Nilsen, as far
as serial killers go, was a very good actor. When he trawled the train
stations and underbelly of London looking for victims he would often
pose as the Good Samaritan. He would latch onto some young man who was
perhaps strapped for their train fare home or needed a bed for the
night. Nilsen would offer to buy them a meal or a drink and then at
some point inevitably try to persuade them to come back to his flat.
Nilsen would come across as quite a protective and kind figure to his
victims. Almost like a mentor. He was able to gain trust and put people
at ease. Because he was a decade or more older than his victims Nilsen
even came across as something of a father figure. A kind stranger in an
hour of need. While many incarcerated serial killers are
reluctant to speak about their crimes or preposterously maintain they
are innocent all the way to the electric chair, Dennis Nilsen was very
different. Nilsen relished any chance to talk about his life and crimes
and would talk for hours to journalists or detectives when given the
chance. He seemed to crave attention and derived a weird satisfaction
from his infamy. Nilsen was delighted to be famous and the fact he had
only become famous because he was a serial killer and necrophile didn't
bother him too much. Nilsen wrote endless essays in prison and they
were all about himself. Serial killers are unavoidably narcissistic and
Nilsen was up there with the worst of them when it came to the size of
his ego. He only cared about himself and had no empathy for anyone -
not even relatives. Nilsen grew up in a small fishing port - which he
said was a lonely existence. A lot of the people where Nilsen lived
ending up working in a local fish canning factory. Nilsen had no desire
to end up like them and wanted to get out of Fraserburgh as soon as he
was old enough. This is why joined the army and then later gravitated
towards London. Nilsen had known he was gay since he was a little boy
and he was well aware that Fraserburgh was not going to be an easy
place to be a gay person in the 1960s and 1970s.When he was
growing-up Nilsen had to keep his sexuality a secret because it wasn't
easy to be openly gay in those days. He said that this created a
feeling of tension and alienation that he never quite managed to shake
off. From a young age, Nilsen had an obsession (a fetish one would say)
with death. He saw a beautiful serenity and peace in death. This
largely derived from a childhood experience when he saw his dead
maternal grandfather Andrew Whyte before the funeral. Nilsen said that
looking at dead people made him feel invulnerable. As a young man,
Dennis Nilsen would smear himself with white makeup and talcum powder
and pretend he was dead. He said he found this erotic. Nilsen actually
believed he was doing people a favour by killing them and then caring
for the body as long as he could. To him this was an affectionate act
of love. Nilsen never seemed to grasp how wicked and strange his deeds
had been. To him it wasn't a big deal to kill someone and then keep the
body stashed in your flat. He thought that everyone secretly desired to
do these grotesque things and he was the only one honest enough to
admit it or act on those urges. Dennis Nilsen loved watching
old war films and always liked the idea of serving in the armed forces.
He joined the Army Cadet Force when he was fourteen. He then served in
the British Army Catering Corps and was a chef in 1st Battalion the
Royal Fusiliers. In his army career Nilsen was stationed in Aldershot,
Norway, Germany, Plymouth, the Shetland Islands, and the Middle East.
Nilsen served eleven years in the army and reached the rank of
corporal. It was in the army that Dennis Nilsen learned how to butcher
meat and use knives. He would deploy these 'skills' in gruesome fashion
on his dead victims when he later became a serial killer. Nilsen
eventually left the army for reasons which are vague. He would claim it
was because of his objections to the situation in Northern Ireland. It
seems more likely though Nilsen realised that as an unmarried secretly
gay man it was going to be increasingly difficult for him in the armed
forces. One of Nilsen's old army colleagues later told the newspapers
that Nilsen left the army because he got into a couple of fights and
couldn't hack it anymore. Nilsen was proud of his army career and, in
his usual deluded fashion, seemed to think this mitigated his later
crimes. In 1972, Dennis Nilsen moved to London and joined the
police. His previous career in the army made him exactly the sort of
person the police liked to recruit. Nilsen was six foot tall, quite
intelligent (though not nearly as intelligent as he liked to think) and
still fairly fit. He completed his police training course and passed
his exams. When he was in the police, Dennis Nilsen had to view
autopsied bodies in the morgue. He found this experience completely
fascinating and sexually exciting. Nilsen was posted to Wilsden Green
Police Station and served as a beat bobby before he swiftly decided
that this wasn't the career for him. Nilsen said that one of the things
which put him off the police was having to treat homosexuals like
criminals. When he was a police officer, Nilsen once discovered two men
having sex in a car late at night. He was supposed to arrest them but
he just ignored them and walked past. Nilsen realised that, as a gay
man, it was going to be very difficult for him to be a police officer.
Nilsen also faced the problem of being gay and living in police
accommodation. He had to keep his sexuality a secret because there was
a lot of homophobia in the police as an institution at the time. Nilsen
once sneaked a casual boyfriend back to his police digs and when the
man was discovered Nilsen had to pretend he had come around to sell him
something. Nilsen hated having to lie about his sexuality. He
thought there was point living in a cosmopolitan city like London if he
had to hide who he really was. That was the whole point of living in
London in the first place. It was a big city with diverse communities
where being gay didn't make you stand out like a sore thumb like it did
in a village or small town. So in the end he decided that being a
police officer was too much trouble and not the career for him. He was
tired of having to hide who he really was. He wanted to go to gay pubs
and have boyfriends and not have to pretend he wasn't gay. In a darkly
ironic and tragic twist, the institutional homophobia in the police was
later one of the reasons why Dennis Nilsen was able to get away with
being a serial killer for so long. Any complaints about Nilsen by men
who had escaped from him were practically ignored by the police because
they generally didn't like to involve themselves in disputes and
allegations which derived from the gay community. The homophobia in the
police was a disadvantage to Nilsen when he was a police officer but an
advantage when he became a serial killer. Had he been murdering women
by the dozen in North London it seems unlikely that Nilsen's crimes
would have remained so invisible to the local police. Nilsen
was able to murder over a dozen men in five years in a constrictive
four mile area of North London and yet the police didn't even deduce
that a serial killer was active let alone catch him. This was a rare
instance in Nilsen's life where he found that being gay was an
advantage. Gay men disappearing just didn't seem to activate the police
in the same fashion that women disappearing would have done. After he
left the police Nilsen had a brief stint as a security guard. He also
believed to have briefly worked in a gay pub. Nilsen did not like being
unemployed. After eleven years in the army he liked routines and having
a reason to get out of bed. Dennis Nilsen eventually became a civil
servant after he dropped out of the police. His official job title was
recruitment interviewer. Nilsen was the Acting Executive Officer at the
employment office (Job Centre) on Denmark Street, Soho. Nilsen still
had this job eight years later when he was arrested in 1983. He was
good at his job and even earned a promotion. Having a mundane white
collar job like this was actually good 'cover' for Nilsen as a serial
killer. Those who worked with Nilsen would never in a million years
have guessed that the man they saw each day at the Job Centre helping
people find work was a prolific and sick necrophile and serial killer
in private. Nilsen was also a socialist and a union rep. This was also
good 'cover' for a serial killer. Iain Mackinnon, who was
Nilsen's manager at the Job Centre, later said that Nilsen was odd but
there were never any warning signs about him. He said he never felt
uncomfortable in Nilsen's presence and that Nilsen wasn't 'creepy' or
anything like that. There was some tension between Mackinnon and Nilsen
because Nilsen always wanted to deal directly with the public in the
Job Centre and interview them but Mackinnon felt Nilsen wasn't suited
to this task and better deployed in more of a backstage role (so to
speak). Nilsen always seemed to like to test authority and assert his
individuality so it is something of a paradox that he joined the army
and the police and actually lasted over ten years in the military. In
1975, Dennis Nilsen began a relationship with a man named David
Gallichan - who Nilsen called 'Twinkle'. They met when Nilsen
intervened outside a pub when Gallichan was being accosted by a couple
of men. Nilsen and Gallichan moved into a ground floor flat together at
Melrose Avenue in North London. Nilsen had been left £1,000 after the
death of his father so his finances were in very good shape at the
time. Nilsen and Gallichan were fairly happy at first but this didn't
last. Gallichan eventually decided to leave and this left Nilsen
feeling lonely and abandoned. Nilsen claimed that he ordered Gallichan
to leave. Whatever the truth, the fact that Nilsen was left all alone
was devastating for his already precarious mental health. Home
movies of Dennis Nilsen and David Gallichan together indicate that
Nilsen was the dominant person in the relationship. You can see that
Nilsen is an irritable man who likes to be in control of a situation
and be the boss. Nilsen seems to always be in a bad mood in these
amateur films. Something seemed to change in Nilsen after the breakdown
of his relationship with Gallichan. He became darker and more detached
from society. Nilsen killed someone for the first time eighteen months
after David Gallichan moved out of the flat they shared. Dennis
Nilsen's first victim was Stephen Holmes. Stephen went missing in
December 1978 and was only fourteen years-old. Stephen Holmes had spent
the night with Dennis Nilsen. Nilsen didn't want Stephen Holmes to
leave and so strangled and drowned him to prevent this from happening.
He washed the body (including the hair) and abused the corpse sexually.
Dennis Nilsen's passion for necrophilia was the motivation for his
murders. He became addicted to the ritual of caring for a dead body.
The actual killing part was not what satisfied Nilsen. It was what came
afterwards. The killing was just an unavoidable necessity for Nilsen.
Nilsen was unusual for a serial killer in that - for obvious reasons -
he only killed people in his own home.Nilsen said he had not
expected to get away with his first murder but to his surprise he did.
Nilsen had assumed that if you murder someone then police detectives
will be knocking on your door the next day but sadly the world doesn't
always work like this. Sometimes people get murdered or vanish and the
police don't have a clue what happened or who was to blame. Nilsen was
amazed then to find that being a serial killer was surprisingly easy -
at least compared to what he had expected. Dennis Nilsen would put
plastic sheets or bin-liners on the floor before he dissected his
victims (this was something he obviously no choice but to do when
decomposition set in). He said he would vomit in the sink a few times
while he did this grisly task. When he lived at 195 Melrose Avenue,
Dennis Nilsen had access to a garden out the back which was blocked off
from other residents. He was able to dispose of some of the victims by
burning remains on a bonfire. Nilsen sometimes had to throw some tyres
onto the bonfire to mask the odour of burning flesh and organs.
However, this never alerted any suspicion because if you see someone
having a bonfire the last thing you assume is that they are burning a
dead body or human remains Dennis Nilsen had to leave 195 Melrose
Avenue in the end because the landlord wanted to renovate the flat. Nilsen
had one last bonfire before he left to clear the backlog of remains. He
did though leave bones and evidence buried in the garden. When his
crimes finally came to light years later that garden would become the
site for a grisly police excavation. There were a few incidents of
neighbours complaining of a smell coming from Nilsen's 195 Melrose
Avenue flat. Nilsen told them that the odour stemmed from structural
problem. Nilsen sometimes put the torsos of victims in suitcases until
he had a chance to burn them. The fact that Nilsen never revealed all
the names and details of his victims is open to interpretation. It is
entirely possible that he genuinely couldn't remember all the details
because he was somewhat drunk during some of these murders. However, it
is equally true that serial killers often hold onto secrets because
this is the only way they can retain some sense of power and control
and mystery once they have been caught. Dennis Nilsen said that he
would suffer blackouts when he drank too much. This was the explanation
he gave to police for why he couldn't remember all the names and
details of several of his victims. Nilsen was rare for a
serial killer in that once in custody he seemed to genuinely enjoy
talking about his crimes. He would happily ramble on for hours talking
about himself if given the chance. Dennis Nilsen's favourite subject
was Dennis Nilsen. He had a huge ego - which manifested itself in
prison with his endless essays writing about himself. These writings
eventually formed the basis of a tasteless autobiography. In his
civilian life, Nilsen had no old army colleagues that he maintained any
contact with. Nilsen was always puzzled by his inability to form
lasting friendships. It was intensely painful for him to think that no
one cared about him enough or enjoyed his company sufficiently to want
to stay in contact over the long term. This was one of his motivations
for moving to London. He wanted to find friends and maybe even lovers.
He wanted to feel less alone in the world. More than anything Dennis
Nilsen yearned for permanent companionship. He would eventually resort
to desperate and extreme measures to achieve this. Nilsen would
painfully discover though that alienation and loneliness can be even
worse in a big city than the rural community where he came from. Dennis
Nilsen embraced his 'career' as a serial killer quite late in life in
comparison to many killers. He didn't murder anyone until he was in his
thirties. A large number of serial killers kill for the first time in
their teens or twenties. According to the Crime Classification Manual,
a serial murder is defined as 'three or more separate events in three
or more separate locations with an emotional cooling off period in
between homicides'. This classification is very flawed though because,
according to its strict criteria, Dennis Nilsen is not a serial killer!
Typically, a serial killer's 'cooling off' period between murders will
involve them going back to their 'normal' life for a time. The FBI
generally states that one must kill three people to qualify as a serial
killer. There must also be a gap between each killing (a bomber, for
example, is a mass murderer or terrorist as opposed to a serial
killer). When he moved to a top floor flat at Cranley Gardens, Nilsen
no longer had access to a garden and so disposing of the bodies became
much more difficult. Dennis Nilsen's last flat was in a very grotty and
squalid condition when he was arrested. It was absolutely filthy with
plates and empty food containers piled up. The oven was covered in dirt
and everything was old, tattered, rusted, and falling apart. One
of Dennis Nilsen's victims was a young man named Malcolm Barlow. Barlow
suffered from epilepsy and had been found by Nilsen in the street
looking unwell. Nilsen got him an ambulance and they parted. Tragically
though, Barlow returned to Nilsen's building the next day and waited
for him to get home from work. Nilsen found Barlow's presence an
irritation so he killed him. Graham Allen was Nilsen's second to last
victim. Nilsen kept Allen's body in his bath for several days after he
killed him. Nilsen would boil the heads of his victims and then pick
off the flesh so he could try and flush it down the toilet. At the
start of 1983, Dennis Nilsen was now one of the most prolific serial
killers in British criminal history. And yet the police had no idea
there even was a serial killer operating in North London! There were no
serious investigations at all about the men who had been vanishing in
the area for the past several years. Dennis Nilsen had so far got away
with his awful crimes. This was all about to change though due to an
unusual set of circumstances one can only describe as bizarre... HOW THEY CAUGHT DENNIS NILSEN PART 1