THE young sailor slumped on the bed in the watch-house cell was crying
with self-pity when an old school friend walked in. It was the first familiar
face he had seen since his arrest two days earlier at the Cerberus naval base
over the murder of a 12-year-old girl taken from a nearby beach.
But the "friend" was not there out of concern. He was now a young
policeman and the homicide squad had sent him to persuade the prisoner to talk
about past crimes. The suspect was Derek Ernest Percy arrested trying to wash
away his guilt and a dead girl's blood at the navy base, hours after Yvonne
Elizabeth Tuohy had been abducted at Ski Beach, Warneet, and then molested,
tortured and murdered.
When Percy grabbed her, he also tried to abduct her friend, Shane Spiller,
12, who escaped by threatening Percy with a tomahawk and running away.
The nature of the crime led detectives, including elite investigator Dick
Knight, to conclude this was not Percy's first attack.
It was 1969 and Australia was reeling from a series of child abductions
and murders over the previous four years.
Christine Sharrock and Marianne Schmidt were murdered on Sydney's Wanda
Beach in January 1965; the Beaumont children (Jane, 9, Arnna, 7, and Grant, 4)
were abducted in Adelaide in 1966; Allen Redston, 6, was murdered in Canberra in
September 1966; Simon Brook, 3, was killed in Sydney in 1968; and Linda
Stilwell, 7, was abducted from St Kilda in August 1968. All cases remain
For nearly 40 years police have wondered if Percy was responsible for nine
murders. Now, after a complex investigation involving old memories and new
techniques, they have built a compelling case against Australia's
But in July 1969, the novice policeman was supposed to listen to his old
schoolmate in the hope he would open up. And it almost worked. The policeman
left the force 18 years ago to return to country Victoria and a quiet life. But
when contacted by cold case unit detectives he immediately knew why.
Unprompted, he recalled his last conversation with Percy.
"He had been sobbing and was very distraught.
"He said, 'Looks like I've f---ed up this time'. I said, 'It certainly
looks like it, Derek'.
"Derek put his head in his hands for a while, then he looked up at me
again and he had tears in his eyes and panic written all over his face. He also
looked at me with a plea for help."
The schoolmate gently asked: "Were there any others, mate?"
"Derek put his head in his hands and began to sob again. He said, 'I
It was the same response he'd given two days earlier to homicide
detectives over the Tuohy murder, until confronted with incontrovertible
The schoolmate, a policeman for barely six months, pushed on. "Well look,
Derek, I'll ask you about some of the ones that I know about. You don't have to
say anything. If you remember I will jot it down and it could be used in court."
Asked about Linda Stilwell, Percy again said his memory was blank but then
made the first of several telling admissions: "Yes, I drove through St Kilda
that day. I had been at Cerberus in the afternoon and was driving along the
esplanade on the way to the White Ensign Club for some drinks."
Asked if he killed her, he said: "Possibly, I don't remember a thing about
Questioned on Simon Brook, he admitted being in Sydney at the time and
said he had driven his brother to work, turning off at the railway cutting where
the body was found.
The policeman, who cannot be named because of a suppression order, pressed
him: "So you drove past the same spot in Sydney on the day Simon Brook was
killed." Percy said, "Yes".
Question: "Do you remember if you killed him?"
Answer: "I wish I could. I might have. I just don't remember."
Question: "What do you know about the Beaumont children in South
Answer: "I was in Adelaide at the time."
Question: "You were what? You remember being in Adelaide when they went
Question: "Whereabouts were you when they disappeared?"
Answer: "Near the beach. But nothing else."
Percy was placing himself at each crime scene. Perhaps with more time and
pressure he would confess, as he had done over the Tuohy murder.
But at that moment, the watch-house keeper told the junior constable he
had no business being in the cell. The young copper said he was on homicide
squad business, but when he turned back to Percy the spell was broken. The
killer knew his former schoolmate was no longer a friend, but trying to find the
secrets of his dark past.
In April 1970, Percy was found not guilty of Yvonne Tuohy's murder on
grounds of insanity. He has never been charged with any other crime. But prison
officers, psychiatrists, judges, police and welfare officers consider him the
most dangerous man in Australia.
The policeman, now long retired, has never been in doubt. When he left the
cell that day, another former schoolmate, called to Russell Street to make a
statement, saw him. He was upset and shaking. "That f---ing bastard, I hope they
hang him," he said.
FOR the cold case unit, going over Linda Stilwell's disappearance from St
Kilda 36 years earlier was meant to be a case of tidying up loose ends to
provide the coroner with a summary of facts. With no real chance of finding a
body, the unit did not want to waste time needed for other cases. But when
Senior Detective Wayne Newman started to delve in January 2004, he began to
discover evidence that pointed to Percy.
For Newman, the "quick" investigation turned into a two-year quest linking
Percy to baffling murders that have long seemed unsolvable. It would involve
police from four forces, psychiatrists and forensic experts.
The investigators, many of whom were not born when the murders were
committed, co-operated in a unique operation, codenamed Heats. To establish that
Percy had killed more than once, detectives retraced the life of the quiet
country boy who became a monster.
ERNEST PERCY was a NSW railway electrician for nearly 25 years before
taking a job with the State Electricity Commission in Victoria, first moving to
Chelsea, then relocating his young family to Warrnambool in 1957.
Ernest Percy's passion was sailing. His eldest son, Derek, just nine when
they moved to Warrnambool, shared the hobby.
In 1961, Percy senior was promoted and the family went to Mount Beauty,
near Bright. The Percys took caravan holidays, often travelling interstate to
yachting competitions in their V8 Studebaker. Much later, police would track
these holidays against their murder map from the 1960s, with intriguing results.
In 1961, Derek started at Mount Beauty High School. The school uniform
included a green and gold striped tie. Other students noticed that Derek's tie
was made of coarse fabric and not a perfect match for the school pattern
although it was close enough.
He became a friend of a local farmer's son who had also just moved to town
and was one of few who liked Percy. Others found him intense, abrupt and at
times unsettling. But no one thought he was dangerous. Yet.
When police from Operation Heats approached the friend, he told them: "One
thing that stood out about Derek was that he was very intelligent. Most or
nearly all of us at school had to work and study very hard but not Derek." He
also noted that Percy was shy and never had a girlfriend.
Banned by his worried parents from playing football, Percy would sometimes
borrow a friend's gear for the occasional game, convincing his mate's mother to
wash the clothes so he would not be caught.
If the Percys were over protective, it was understandable. Their
third-born, Brett, died from diphtheria when aged only 10 months. They were to
have three surviving sons.
Derek earned his pocket-money working in the tobacco fields with friends
buying a second-hand red bike with racing "ram's horn" handlebars.
He carried his sharp knife everywhere, but in country Victoria that did
not make him unusual. In the 1960s a pocket-knife was more a tool than a weapon,
used to solve a problem rather than create one.
But when Percy used his to help a mate make running repairs to the sole of
a shoe during a handball game, he showed a glimpse into his future.
"I remember Derek getting his pocket-knife out and telling me that he
would cut (the sole) off
Derek began to cut the sole off my shoe and all of a
sudden the blade went into Derek's left thigh about three quarters of an inch
(about two centimetres). The blade went deeply into his thigh and I recoiled
back in surprise.
"I was amazed that Derek just looked fascinated with what had happened. He
didn't scream, cry or really show any sort of emotion that you would expect from
someone with a knife in their leg.
"I thought his reaction was extremely odd," the friend said. "He seemed
happy about it."
Kiewa Valley's hydro-electric plant was no Snowy Mountains Scheme but it
gave tradesmen the chance to raise families in one of Victoria's prettiest
There was little violent crime in the town of fewer than 2000 people, no
need to lock houses or cars. But in late 1964, a small crime wave began: women's
underwear began to disappear from clothes lines and Derek Percy was rumoured
to be the thief. Until then he had been a model student and a school prefect,
but in 1965 his grades plummeted.
Ernie Percy threatened to sack any hydro worker who suggested his son was
the phantom "snowdropper", but by late 1964 at least two locals knew that Derek
was the culprit and that he was much worse than just a petty thief. He was
dangerously disturbed and, they believed, a potential killer.
On a warm Sunday, two teenagers, Kim White and Bill Hutton, walked to a
local swimming hole. There they saw what they thought was a girl in a petticoat.
Then they realised it was Percy in a pink negligee.
"Well, at least it fits," one joked to his mate. But any humour was lost
when Percy began to slash wildly at the clothing, then cut and stabbed at the
crotch of a pair of knickers.
Hutton could see Percy's face. "I would describe Derek's eyes as being
full of excitement, a glazed look, but I recall there was something very cold
and sinister in the look," he told police much later.
The boys told a teacher the next day and were accused of making up
stories. They confronted Percy but he denied everything. Most fellow students
thought their story was fabricated. After all, Percy was the obedient student
and his accusers loved a little mischief.
The following year Ernie Percy took a job with the Snowy Mountain Scheme
and moved his family to Khancoban in NSW, but to allow Derek to finish school at
Mount Beauty the teenager boarded with another family.
The woman who lived next door remembers how the new boarder would watch
her hang out washing. One Saturday she took her daughters, then aged seven and
nine, to visit a relative. When they returned they found the girls' wardrobes
had been rifled through and their underwear and dresses stolen.
The mother reported the theft to the police, who asked her if she
suspected anyone. She suspected Percy but did not want to say so, she admitted
A few weeks later a local found some of the dresses in a bundle hidden
under some bushes. With it was a girl's doll, with the eyes "blinded" and
newspaper clippings of women in bikinis. The women's eyes were pencilled out and
the bodies mutilated with razor blades. The slashes would match some of the
wounds inflicted on the children murdered around Australia in the 1960s.
The blinded doll belonged to the girl next door to where Percy was living.
Percy moved from Mount Beauty to join his family in Khancoban after he
failed his exams in 1965, a strange result for a student with an IQ of 122.
In his entry in the Mount Beauty school magazine he revealed a little of
his concealed thoughts. His favourite saying was: "It depends." Perpetual
occupation: "Isolating himself." Ambition: "Playboy." Probable fate: "Bachelor."
Pet aversion: "Girls."
When Percy left Mount Beauty the "snowdropping" stopped, only to begin
near his new home in Khancoban. There were also reports of a Peeping Tom.
While at Khancoban a neighbour found that Percy had lured her six-year-old
daughter into the family caravan to sexually assault her. The girl's father
decided to deal directly with Ernie Percy, who promised it wouldn't happen
again. And it didn't. At least not there.
While both parents said they thought their eldest son was shy but normal,
deep down they had growing fears.
One Mount Beauty local said that while Mrs Percy allowed her middle son
freedom, the elder brother was kept on a tighter rein. "Derek had to get
permission to go anywhere with us outside of school hours and she would question
Ernie Percy would later tell NSW police he had once found Derek dressed in
woman's clothing. The parents also found some disturbing sexual writings by
their son and immediately burnt them. Later Percy's grandmother found letters
filled with "rude" thoughts. Percy denied they were his. Again they were burnt.
Percy began writing down bizarre and violent sexual fantasies in 1965
around the time his school grades collapsed. He continued the self-incriminating
habit for years.
Much later police would allege the writings were plans for the crimes he
was to commit and directly linked him to the series of unsolved child murders.
At the end of 1966, having repeated year 11, Percy was ready to leave
school. His father also decided to leave the mountains to move into private
enterprise. He invested his payout on a Shell service station in Newcastle.
Derek tried year 12 in a NSW school, dropped out, worked at the service
station, and in November 1967 joined the navy, graduating top of his class a few
Nearly four decades later, detectives started trying to piece together his
movements around Australia over the crucial four-year period in the 1960s.
They knew the Percys often took their caravan to holiday near beaches
during yachting regattas. They also could prove Percy was harbouring thoughts of
molesting and killing children at the same time as the series of shocking
abductions were carried out in four states and territories and with one
exception all near beaches.
But was it simply a series of coincidences? How could a teenager from
country Victoria grab kids hundreds of kilometres away? And how could a young
sailor murder and return to his base undetected?
On a windy Monday January 11, 1965 teenage neighbours Marianne Schmidt
and Mary Sharrock went to Sydney's popular Cronulla Beach area with Marianne's
four younger siblings. After a picnic, the younger children stayed in a
sheltered area at Wanda Beach and the two 15-year-olds started talking to a
Peter Schmidt, 10, saw his sister and her friend with the teenager. His
brother Wolfgang, 7, had also seen them talking to the boy earlier. The youth
had a knife in a sheath and carried a spear.
The girls' mutilated bodies were found the next day, partially buried near
a sand dune.
As in the Tuohy case, the victims were taken from the beach and dumped
nearby. The crotch area of one of the girls' bathers had been cut. Percy had
been seen slashing female underwear at Mount Beauty in late 1964 just weeks
Some people remembered that the Percys had gone to Sydney for a holiday
that summer. The mother of one of Percy's closest friends in Mount Beauty told
detectives that she had always suspected that Percy might have been "a suspect
in that case".
Ernie Percy took holidays to coincide with yacht races around Australia.
That summer the national yachting regatta was at Botany Bay Yachting Club near
Wanda Beach. Percy's grandparents lived walking distance from the West Ryde
railway station where the two girls caught the train.
After police arrested Percy at Cerberus, they found a diary in which he
described his urges to sexually abuse, torture, murder and mutilate children.
They also found drawings of naked children and women.
In one excerpt, Percy wrote he would force one of his victims to drink
beer. Autopsy results showed that Mary Sharrock had a blood alcohol reading
equivalent to drinking about 300 millilitres of beer.
In his murder blueprint he wrote about abducting and killing "Two girls at
Barnsley", a NSW beach in northern NSW. Police believe it was code for Wanda
It was 1966 and Percy had moved to Corryong High when classmate Wayne
Gordes decided to tease the new student after he saw the obvious resemblance to
the photo-fit. "I jokingly thought to myself 'That's Derek', because of the
description and I knew that they went to a beach in Sydney.
"A group of us were standing in the quadrangle when Derek Percy walked
past. I said, 'We know it was you that killed those girls in Sydney. You have
the same haircut and we know you were there.'
"With that Derek went berserk. He said, 'Don't you say that'
I think he
wanted to fight me for what I had said. I had never seen Derek behave like that
ON WEDNESDAY, January 26, 1966, the Beaumont children Jane, 9, Arnna, 7,
Grant, 4 caught the bus from their Somerton Park home to Glenelg Beach,
Adelaide. They left about 9.45am; their mother, Nancy, expected them home about
A friend of Jane's saw them sitting near the Holdfast Bay Sailing Club
about 11am. A man was seen talking to them and at 11.45am the children bought a
pie and two pasties from a bakery in Jetty Road.
The man almost certainly gave them cash for the food as they paid with a
£1 note more money than their mother had given them. They were never seen
The suspect was described as in his 30s with light brown, short swept-back
hair parted on the left side, a thin face and clean-shaven. He was suntanned and
wearing blue bathers with a white stripe down the side.
Could it have been Percy? He was only 17 at the time but was sometimes
mistaken for being older. His writings showed he planned to give food to the
children he would kidnap before killing them. The Beaumonts were in the age
group Percy fantasised about and they went missing from the beach, as did Yvonne
Tuohy, Marianne Schmidt, Mary Sharrock, and Linda Stilwell.
Some elements of the description fitted Percy, some didn't. The original
sketch of the suspect was done by a non-police artist and is not considered
Was Percy in Adelaide? He told police he had been there on holiday but
couldn't remember when. His brother confirmed they had been there. The mother of
one of Percy's friends told police: "I can also recall that Derek travelled to
Adelaide on holidays by plane on one occasion."
Asked by detectives in 2005 if he was in Adelaide when the Beaumonts went
missing he answered, "I don't know".
They then asked if he was blocking out thoughts "because something
horrible happened in Adelaide and you don't want to remember it?" and he said it
Five days after the Tuohy murder he was interviewed by prison psychiatrist
Dr Allen Bartholomew who found Percy had the capacity to repress memories of the
crimes he committed. He said that if Percy had been arrested a week after the
murder he would no longer have been able to recall what he had done.
Without bodies or a confession, Percy heads a short list of suspects for
the Beaumont children. Evidence is too scanty to prove or disprove his
involvement but the similarities of the crime with Percy's modus operandi are
Detective Sergeant Brian Swan from Adelaide's major crime investigation
branch said Percy remains "a person of interest in the disappearance of the
And Dr Bartholomew observed after interviewing Percy: "It is not beyond
the bounds of possibility that there is some other great harm been done in the
past and there is no way of knowing it."
ON SEPTEMBER 27, 1966, Allen Geoffrey Redston, 6, left his home in the
Canberra suburb of Curtain to go to the nearby milk bar to buy an ice-cream.
The following day his body was discovered concealed in reeds by a local
creek. The body was hog-tied and had plastic wrapped around the throat.
A police investigation found that in the days leading up to the murder, a
fair-haired teenager had been forcing boys to the ground, tying them up and
placing plastic over their heads in an apparent attempt to asphyxiate them.
The identikit closely resembled Percy and the suspect was riding a
distinctive red pushbike with "ram's horn" handlebars the type Percy rode at
Mount Beauty and took with him on caravan holidays.
When Dick Knight questioned Percy in 1969, he confirmed taking a family
holiday in Canberra in 1966. Police established he had a Canberra relative but
have found no records to pinpoint the exact date of the holiday.
Percy's writings detail using plastic and his plans to tie up and
asphyxiate victims. Both Redston and Tuohy were tied and gagged when their
bodies were found.
Percy was the product of an otherwise stable family. But there was a
secret. When Derek was young and being cared for by his grandmother, she would
use a bizarre form of punishment: she would lock him in a room and hog-tie him
feet and hands bound the way little Allen Redston's were.
One item found at the crime scene puzzled the original investigators.
Along with other material used to used to bind the child was a tattered green
and gold striped tie. It was similar to the Mount Beauty High School ties but
was made of a distinctive coarse cloth, like hessian. It matched the school tie
Percy no longer needed after transferring to Corryong High earlier that year.
That is one reason why federal police say that Percy cannot be eliminated
"as a person of interest in relation to the death".
AFTER three months in the navy, Percy was posted to the aircraft carrier
HMAS Melbourne on March 9, 1968. But the ship was in Cockatoo Dry Dock at Sydney
Harbour for a year-long refit and the junior sailor was assigned fire sentry
He lived at the naval base at nearby Garden Island and commuted through
the suburb of Glebe to the dock. On Saturday, May 18, 1968, Simon Brook, 3, went
missing from the front yard of his family home in Alexandra Lane, Glebe. The
house was next to Jubilee Park on Sydney Harbour, close to beach and yachts.
A truck driver later said he'd seen a boy matching Simon Brook's
description holding a young man's hand near Jubilee Park.
The mystery man was well-groomed with a neat haircut, and an identikit
image has a startling similarity to a photograph of Percy in his school year
The little boy's body was found behind a building site about 350 metres
from the Brooks' home. There were several signature injuries similar to those
inflicted on Yvonne Tuohy. When police examined the scene they found two
Gillette razor blades probably used in the attack. The same brand was issued to
But the most damning evidence comes from Percy's own hand. In his diary,
he wrote of abducting and killing a three-year-old "baby" and described in
detail the exact injuries inflicted on Simon Brook. Detectives say it is a
When Dick Knight interviewed Percy in 1969 he asked him, "Did you kill
Simon Brook?", and Percy said "I could have". When Percy talked to the young
policeman who was his old schoolmate, he admitted he had been in the Glebe area
at the time "turning off at the railway cutting where the body was found".
Only someone with a detailed knowledge of the area would know that Simon
Brook lived near a railway cutting, and if Percy turned off at the railway
cutting he would have driven straight past the Brooks' street.
Crime profiler Detective Senior Sergeant Debra Bennett concludes "there is
all likelihood that the offender for Simon Brook's murder and the offender for
Yvonne Tuohy's murder is one and the same".
And NSW Coroner John Abernethy agrees. A new inquest was held in 2005 and
after just two days he found the evidence so compelling he closed the hearing
and referred the case to the Director of Public Prosecutions. Percy was flown to
the inquest but chose not to give evidence on the grounds of self-incrimination.
Abernethy said he believed there was a "reasonable prospect
that a jury
would convict a known person in relation to the offence". Charges might still be
LINDA STILWELL was four when her family arrived in Melbourne from England
on the migrant ship the MV Fairsky in April 1965. Linda was the second youngest
of four children. For her mother Jean and father Brian the new start could not
save their marriage. In July 1968, Brian left for New Zealand with their
youngest child, Laura. Jean stayed in Melbourne with the other three, took a job
at an Albert Park hotel and moved into a flat in nearby Middle Park.
On Saturday, August 10, 1968, she told her children to stay home while she
went grocery shopping. But the lure of the beach was too much for the two
eldest, who wanted to explore the new neighbourhood.
When Mrs Stilwell arrived home about midday, Karen, 11, and Gary, 9, had
left. She dressed Linda, 7, and told her to go and find her brother and sister
to bring them home for lunch. Three hours later Karen returned to say Gary and
Linda were fishing on the St Kilda Pier.
About 4pm Gary returned, saying Linda had gone to Little Luna Park to
"look at the rifles" with some boys. His mother sent the boy back to find his
sister but he came back saying he thought she might have gone to the police
station to collect some fishing rods.
Stilwell rang the police and was told that two boys had been in to get the
rods but there was no sign of a little girl. Three small boys told police they
had last seen Linda at Little Luna Park.
Two days later a woman contacted police and said she had seen a girl
matching Linda's description rolling down a grassy hill near the Lower
Esplanade. She said she saw a man near her. She described him as having an olive
complexion, thin features and wearing dark clothing.
She said the man was wearing "a deep navy blue, almost black, spray
jacket, similar to that worn when sailing. The man was sitting with his legs
crossed looking out to sea quite intently, but appeared relaxed."
About 80 suspects were questioned but no leads came up. Linda was never
Percy had transferred to the troop ship HMAS Sydney (based in Melbourne)
on July 1, 1968, but was on leave for 18 days from August 5, five days before
After Percy was arrested for the Tuohy murder the following year, the
woman witness opened the paper to see the picture of the suspect. He was wearing
a dark spray jacket. "I got the biggest shock of my life. This was the same man
that was sitting on the park bench the day that the little Stilwell girl
disappeared in St Kilda," she said.
About two years ago, when Percy's arrest photo was again published,
identifying him as a suspect in a series of unsolved murders, the witness came
forward again. "I am absolutely sure that the man I saw sitting on the park
bench the day Stilwell disappeared is the same man," she said.
When Percy was asked by his policeman friend about Linda's disappearance,
he said that he had driven through St Kilda that day. Asked if he was the
killer, he said: "Possibly, I don't remember a thing about it."
In his belongings police found maps he had marked. One was in West Ryde
near where the Wanda Beach victims caught the train, one was marked through
Glebe where Simon Brook was killed, and another was marked with a line past the
spot where Linda Stilwell was last seen.
Victoria's State Coroner Graeme Johnstone is expected to hold an inquest
into her disappearance. Whenever Linda Stilwell's mother, Jean Priest, moved
house, she would go to the homicide squad to pass on her new address in the hope
that one day she would get the call that there had been a breakthrough. But over
the years she found the new generation of detectives no longer even recognised
her daughter's name.
Operation Heats has given her new hope. "It has helped me to know that
people like (Senior Detective) Wayne Newman have cared so much and done so much
work," she said last week. "You learn to live with what has happened but you can
All she wants now is for the evidence against Percy to be produced at
inquest. "Then I will be able to put a name to the face
I just hope he would
finally admit what he has done."
Derek Percy was surprisingly chatty when Operations Heats investigators
questioned him in early 2005. Balding with a long grey beard, he has retained
his striking cold blue-eyed stare. He chatted happily while drinking tea with
three sugars and nibbling on a cheese and tomato sandwich.
He is serving an indefinite sentence under the insanity verdict, but he
has previously applied for a minimum term an appeal that has failed because he
is considered a danger to the community.
He still hopes to be released, and a confession that he had killed many
times would destroy that dream. Having received a navy pension since his arrest,
he is one of the richest inmates in prison, with nearly $200,000 in the bank.
Detectives were to ask him 1535 questions. He could recall details of his
childhood but when asked about the murders he grew quiet.
NSW Detective Sergeant Adam Barwick said that when Percy was asked about
the Brook murder he was "visibly different, in that his lip quivered, and his
answer was 'I can't remember'. I formed the opinion that Percy was lying when
answering these questions."
Police believe that Percy's claim that he cannot remember is
self-protection rather than self-deception. They think he is bad not mad.
Ironically, detectives say, the charade that he was insane at the time of
the crimes is in the public interest. If he had stood trial and been convicted
in 1970 for the murder of Yvonne Tuohy he would have been released years ago
and would inevitably have struck again.
THE LIFE AND CRIMES OF DEREK PERCY
- 1948, SEPTEMBER 15 Born in Strathfield, NSW
- 1954 Attends primary school, Missions Point, NSW
- 1956 Family moves to Chelsea
- 1958 Moves to Warrnambool
- 1961 Moves to Mt Beauty
- 1964 Seen slashing women's clothing. A suspect for "snow
- 1965, JANUARY 11 Wanda Beach murders. Mt Beauty locals
see resemblance between Percy and identikit of suspect.
- 1965 Starts keeping graphic diary. School grades plummet.
Fails year 11.
- 1966 Moves to Khancoban. Molests young girl.
- 1966, JANUARY 26 Beaumont children go missing. Mt Beauty
residents recall Percy holidaying in Adelaide. Percy later says he was in
Adelaide on the beach on the day.
- 1966, SEPTEMBER 28 Allen Geoffrey Redston, 6, is abducted
and murdered in Canberra. Percy later tells police he has holidayed in the
capital but cant recall details. In the days leading up to the murder there
are reports of a teenager attempting to suffocate children in the area. The
description fits Percy. Suspect rode a bike similar to Percy's and victim was
bound with a tie similar to Mt Beauty school uniform tie.
- 1967, NOVEMBER 25 Joins navy.
- 1968, MARCH 9 Stationed in Sydney.
- 1968, MAY 18 Simon Brook, 3, abducted in Glebe. Percy
writes in his diary of abducting and murdering a three-year-old. The details
in the diary match the fatal injuries inflicted on the victim.
- 1968, AUGUST 5 Goes on 18 days leave from navy. Tells
police he stays in Melbourne.
- 1968, AUGUST 10 Linda Stilwell abducted from St Kilda
foreshore. Percy on leave at the time. Had a map that was marked in the area
she went missing and told police he was in the area that day.
- 1969, APRIL 1 Stationed on the Cerberus.
- 1969 Attempted abduction of a 12-year old girl on a bike
near the Cerberus base. Victim later identifies Percy as the attacker.
- 1969, JULY 27 Abducts and murders Yvonne Tuohy from Ski
Beach. Arrested later that day. Police find his diary filled with violent sex
- 1970 Found not guilty of the Tuohy murder on the grounds
of insanity. Jailed for life.