NZ Herald
  • Home
  • Latest news
  • Video
  • New Zealand
  • Sport
  • World
  • Business
  • Entertainment
  • Podcasts
  • Quizzes
  • Opinion
  • Lifestyle
  • Travel
  • Viva
  • Weather forecasts

Subscriptions

  • Herald Premium
  • Viva Premium
  • The Listener
  • BusinessDesk

Sections

  • Latest news
  • New Zealand
    • All New Zealand
    • Crime
    • Politics
    • Education
    • Open Justice
    • Scam Update
    • The Great NZ Road Trip
  • On The Up
  • World
    • All World
    • Australia
    • Asia
    • UK
    • United States
    • Middle East
    • Europe
    • Pacific
  • Business
    • All Business
    • MarketsSharesCurrencyCommoditiesStock TakesCrypto
    • Markets with Madison
    • Media Insider
    • Business analysis
    • Personal financeKiwiSaverInterest ratesTaxInvestment
    • EconomyInflationGDPOfficial cash rateEmployment
    • Small business
    • Business reportsMood of the BoardroomProject AucklandSustainable business and financeCapital markets reportAgribusiness reportInfrastructure reportDynamic business
    • Deloitte Top 200 Awards
    • CompaniesAged CareAgribusinessAirlinesBanking and financeConstructionEnergyFreight and logisticsHealthcareManufacturingMedia and MarketingRetailTelecommunicationsTourism
  • Opinion
    • All Opinion
    • Analysis
    • Editorials
    • Business analysis
    • Premium opinion
    • Letters to the editor
  • Sport
    • All Sport
    • OlympicsParalympics
    • RugbySuper RugbyNPCAll BlacksBlack FernsRugby sevensSchool rugby
    • CricketBlack CapsWhite Ferns
    • Racing
    • NetballSilver Ferns
    • LeagueWarriorsNRL
    • FootballWellington PhoenixAuckland FCAll WhitesFootball FernsEnglish Premier League
    • GolfNZ Open
    • MotorsportFormula 1
    • Boxing
    • UFC
    • BasketballNBABreakersTall BlacksTall Ferns
    • Tennis
    • Cycling
    • Athletics
    • SailingAmerica's CupSailGP
    • Rowing
  • Lifestyle
    • All Lifestyle
    • Viva - Food, fashion & beauty
    • Society Insider
    • Royals
    • Sex & relationships
    • Food & drinkRecipesRecipe collectionsRestaurant reviewsRestaurant bookings
    • Health & wellbeing
    • Fashion & beauty
    • Pets & animals
    • The Selection - Shop the trendsShop fashionShop beautyShop entertainmentShop giftsShop home & living
    • Milford's Investing Place
  • Entertainment
    • All Entertainment
    • TV
    • MoviesMovie reviews
    • MusicMusic reviews
    • BooksBook reviews
    • Culture
    • ReviewsBook reviewsMovie reviewsMusic reviewsRestaurant reviews
  • Travel
    • All Travel
    • News
    • New ZealandNorthlandAucklandWellingtonCanterburyOtago / QueenstownNelson-TasmanBest NZ beaches
    • International travelAustraliaPacific IslandsEuropeUKUSAAfricaAsia
    • Rail holidays
    • Cruise holidays
    • Ski holidays
    • Luxury travel
    • Adventure travel
  • Kāhu Māori news
  • Environment
    • All Environment
    • Our Green Future
  • Talanoa Pacific news
  • Property
    • All Property
    • Property Insider
    • Interest rates tracker
    • Residential property listings
    • Commercial property listings
  • Health
  • Technology
    • All Technology
    • AI
    • Social media
  • Rural
    • All Rural
    • Dairy farming
    • Sheep & beef farming
    • Horticulture
    • Animal health
    • Rural business
    • Rural life
    • Rural technology
    • Opinion
    • Audio & podcasts
  • Weather forecasts
    • All Weather forecasts
    • Kaitaia
    • Whangārei
    • Dargaville
    • Auckland
    • Thames
    • Tauranga
    • Hamilton
    • Whakatāne
    • Rotorua
    • Tokoroa
    • Te Kuiti
    • Taumaranui
    • Taupō
    • Gisborne
    • New Plymouth
    • Napier
    • Hastings
    • Dannevirke
    • Whanganui
    • Palmerston North
    • Levin
    • Paraparaumu
    • Masterton
    • Wellington
    • Motueka
    • Nelson
    • Blenheim
    • Westport
    • Reefton
    • Kaikōura
    • Greymouth
    • Hokitika
    • Christchurch
    • Ashburton
    • Timaru
    • Wānaka
    • Oamaru
    • Queenstown
    • Dunedin
    • Gore
    • Invercargill
  • Meet the journalists
  • Promotions & competitions
  • OneRoof property listings
  • Driven car news

Puzzles & Quizzes

  • Puzzles
    • All Puzzles
    • Sudoku
    • Code Cracker
    • Crosswords
    • Cryptic crossword
    • Wordsearch
  • Quizzes
    • All Quizzes
    • Morning quiz
    • Afternoon quiz
    • Sports quiz

Regions

  • Northland
    • All Northland
    • Far North
    • Kaitaia
    • Kerikeri
    • Kaikohe
    • Bay of Islands
    • Whangarei
    • Dargaville
    • Kaipara
    • Mangawhai
  • Auckland
  • Waikato
    • All Waikato
    • Hamilton
    • Coromandel & Hauraki
    • Matamata & Piako
    • Cambridge
    • Te Awamutu
    • Tokoroa & South Waikato
    • Taupō & Tūrangi
  • Bay of Plenty
    • All Bay of Plenty
    • Katikati
    • Tauranga
    • Mount Maunganui
    • Pāpāmoa
    • Te Puke
    • Whakatāne
  • Rotorua
  • Hawke's Bay
    • All Hawke's Bay
    • Napier
    • Hastings
    • Havelock North
    • Central Hawke's Bay
    • Wairoa
  • Taranaki
    • All Taranaki
    • Stratford
    • New Plymouth
    • Hāwera
  • Manawatū - Whanganui
    • All Manawatū - Whanganui
    • Whanganui
    • Palmerston North
    • Manawatū
    • Tararua
    • Horowhenua
  • Wellington
    • All Wellington
    • Kapiti
    • Wairarapa
    • Upper Hutt
    • Lower Hutt
  • Nelson & Tasman
    • All Nelson & Tasman
    • Motueka
    • Nelson
    • Tasman
  • Marlborough
  • West Coast
  • Canterbury
    • All Canterbury
    • Kaikōura
    • Christchurch
    • Ashburton
    • Timaru
  • Otago
    • All Otago
    • Oamaru
    • Dunedin
    • Balclutha
    • Alexandra
    • Queenstown
    • Wanaka
  • Southland
    • All Southland
    • Invercargill
    • Gore
    • Stewart Island
  • Gisborne

Media

  • Video
    • All Video
    • NZ news video
    • Business news video
    • Politics news video
    • Sport video
    • World news video
    • Lifestyle video
    • Entertainment video
    • Travel video
    • Markets with Madison
    • Kea Kids news
  • Podcasts
    • All Podcasts
    • The Front Page
    • On the Tiles
    • Ask me Anything
    • The Little Things
    • Cooking the Books
  • Cartoons
  • Photo galleries
  • Today's Paper - E-editions
  • Photo sales
  • Classifieds

NZME Network

  • Advertise with NZME
  • OneRoof
  • Driven Car Guide
  • BusinessDesk
  • Newstalk ZB
  • What the Actual
  • Sunlive
  • ZM
  • The Hits
  • Coast
  • Radio Hauraki
  • The Alternative Commentary Collective
  • Gold
  • Flava
  • iHeart Radio
  • Hokonui
  • Radio Wanaka
  • iHeartCountry New Zealand
  • Restaurant Hub
  • NZME Events

SubscribeSign In
Advertisement
Advertise with NZME.
Home / World

Serial killer Peter Dupas linked to three unsolved cases

news.com.au
28 Dec, 2019 06:16 PM9 mins to read

Subscribe to listen

Access to Herald Premium articles require a Premium subscription. Subscribe now to listen.
Already a subscriber?  Sign in here

Listening to articles is free for open-access content—explore other articles or learn more about text-to-speech.
‌
Save

    Share this article

One of the many mugshots of Peter Dupas. Photo / Supplied
One of the many mugshots of Peter Dupas. Photo / Supplied

One of the many mugshots of Peter Dupas. Photo / Supplied

WARNING: Graphic

This October, it finally looked like police would be able to have their day in court over the shocking 1997 nursing home murder of 95-year-old Kathleen Downes, having charged one of Australia's most depraved serial killers.

Mrs Downes had lived at the Brunswick Lodge nursing home on quiet Loyola Ave for eight years, becoming known as the "matriarch" of the community. Despite her age, she was still spritely, "a person who was able to get up and get about," as she was later described.

As is custom, a member of staff checked on Mrs Downes at 12:30am on New Year's Eve, and found her soundly sleeping. At 3am, another resident heard blinds rattling and a door opening — no doubt thinking it odd that someone was up at such an hour.

What the resident heard was most likely the sound of boltcutters snapping through the chain lock on Mrs Downes' bedroom window. Maybe it was the flyscreen being slashed open. Nobody, however, reported hearing Mrs Downes scream, as she was stabbed three times in the neck.

Advertisement
Advertise with NZME.
Advertisement
Advertise with NZME.

She was found at 6:30 the next morning, lying on the floor in a pool of blood.

"She was the type of lady who insisted on sleeping with her bedroom door open," Detective Chief Inspector Rod Collins told the media shortly after the shocking murder.

The killing has remained unsolved for 22 years.

Advertisement
Advertise with NZME.

Peter Dupas, who is already serving life sentences for the stabbing murders of three women, was a longtime suspect in the Downes case. He was formally questioned in 2013 for five hours, but denied any involvement.

In 2015, a former lawyer, who was jailed for drug trafficking and did time with Dupas, told an inquest that Dupas once confided in him: "I reckon I'm going to end up wearing the old sheila, Downes, too" while at other times allegedly crowing, "they will never get me for that".

The court heard two calls made to the nursing home in November 1997, and another just two hours before the stabbing, were traced to Dupas' phone.

With police believing evidence was mounting up, Dupas was charged last year with the brutal killing, and was set to stand trial this October.

Discover more

World

Suspected serial killer stayed under the radar. How did he do it?

20 Jan 04:40 PM

However, the former lawyer and key witness for the case was deemed too ill to give evidence, and prosecutors were forced to drop the case.

The Downes slaying is only one of three unsolved murders that police believe Dupas committed, in addition to the three he has been found guilty of.

THE FIRST DUPAS MURDER?

Dupas first showed signs of violent intent towards woman at age 15. Visiting a neighbour's house, he asked to borrow a sharp knife to cut up some vegetables. He then slashed her face, neck and hands as she struggled to fight him off. He was placed on probation and spent two weeks under psychiatric care.

Helen McMahon was murdered while sunbaking in a secluded area at Rye Beach. Police believe she was Dupas' first kill. Photo / Supplied
Helen McMahon was murdered while sunbaking in a secluded area at Rye Beach. Police believe she was Dupas' first kill. Photo / Supplied

The following year, someone broke into a mortuary and mutilated the bodies of two elderly women. A distinctive carving was found on the thigh of one of the bodies – a carving that would show up again on one of his murder victims, leading police to believe Dupas may have been involved.

In 1974, Dupas was sentenced to nine years for what the judge called "one of the worst rapes that could be imagined". He was only 21 at the time. He was out after just five years. Less than 60 days after release, he went on a 10-day spree, sexually assaulting four women with varying levels of viciousness.

He was jailed, again with a five-year minimum, a report stating bluntly: "There is little that can be said in Dupas' favour … His release on parole was a mistake."

Advertisement
Advertise with NZME.

Despite this, in 1985 he was again released after serving his minimum sentence. Four days later, he raped a 21-year-old woman at knifepoint. She was sunbaking on a secluded stretch of Blairgowrie Beach when Dupas struck.

The timing was interesting to police. Just 16 days earlier, 47-year-old Helen McMahon had been murdered while sunbaking in the nearby sand dunes, a crime that bore uncanny similarities.

Ms McMahon liked Rye Beach for its sense of seclusion. On February 13, 1985, she did what she had done many times before, laying her towel out between the sandy dunes, and sunbaking topless.

At 3:30pm, her naked body was found hidden underneath her towel. She had been badly beaten. This happened less than 4km from where Dupas would rape the sunbaker two weeks later

Police questioned Dupas about Ms McMahon's murder, and he denied any involvement. They soon found that Dupas was still imprisoned during this time, so they dismissed any link.

Years later, it emerged that Dupas was actually on prerelease the day this murder occurred, and lived near Rye. Nobody has ever been charged for McMahon's killing.

Advertisement
Advertise with NZME.

Police now believe this was Dupas' first murder.

THE VIOLENT DEATH OF RENITA BRUNTON

Renita Brunton was stabbed 106 times in broad daylight in a busy mall in Sunbury.

The frenzied attack occurred at 1pm on November 5, 1993. The 31-year-old was in the kitchen of her second-hand clothing store Exclusive Pre-Loved Clothing.

Nobody reported hearing a scream, although news soon filtered out that she was seen in the store the previous day having a heated argument with a man, who was never identified.

Ms Brunton had only married five months earlier, so police followed procedure and both her husband and ex-husband were questioned. Both were cleared early on of having any involvement in her death.

One friend provided police with information that provided a link to Dupas, although this link wouldn't become evident until April, 1999, after he was charged with the brutal murder of Nicole Patterson.

Advertisement
Advertise with NZME.

At the time of the Brunton murder, Dupas was living less than half an hour's drive from the store – but, more interesting to police, he lived in Woodend, the same suburb as Renita Brunton.

Her friend Annette Davey told police Ms Brunton had been holding informal counselling sessions out the back of her store, and was that day meeting a man "with a violent sexual history".

In 1999, Dupas used the alias "Malcolm" and organised to meet local 28-year-old psychotherapist Nicole Patterson, after seeing her classified ad in a local newspaper.

Ms Patterson was attempting to move into private practice and had placed the ad in hopes of building her client base. Dupas called her three separate times over a six-week period to inquire about the sessions, and eventually made a 9am appointment one morning at her home.

Her body was discovered that evening in the front room, with 27 stab wounds to her chest and spine. Both of her breasts had been cut off and bits of tape were attached to her body. Dupas was arrested three days later and charged and convicted of the murder.

In the earlier case of Renita Brunton, the murderer had also used the ruse of counselling sessions in order to facilitate a meeting in a private location, where she would be vulnerable.

Advertisement
Advertise with NZME.

Dupas has always protested his innocence in the Brunton case, and provided an alibi to police.

"But then you put that in the context of the injuries and the type of attack it is and the type of offending he's done in the past, those things have to be weighed up," Detective Sergeant Rowe told Channel 7 in 2017, after the Victorian Police offered a reward of $1 million.

"If it's not Peter Dupas, then who is it?"

THREE DECADES OF "TERRORISED WOMEN"

Regardless of whether Dupas, now 66, is ever convicted of the three unsolved murders above, he will spend the rest of his days behind bars, with no chance of parole.

Peter Dupas in court on trial for the murder of Mersina Halvagis. He stabbed her 87 times, dumping her body in an empty plot three graves from her grandmother. Photo / Supplied
Peter Dupas in court on trial for the murder of Mersina Halvagis. He stabbed her 87 times, dumping her body in an empty plot three graves from her grandmother. Photo / Supplied

Each time he was freed from lengthy prison stints, he offended again. After being freed in 1992, he was again arrested in January 1994, after attempting to rape a woman at knifepoint in a toilet block. In September, 1996, he was free again, and killed at least twice the following year.

In the early hours of October 4, 1997, he murdered 40-year-old prostitute Margaret Maher in Melbourne, a crime he would not be charged with until 2004.

Advertisement
Advertise with NZME.

Her body was found under a cardboard box that afternoon by a man who was collecting cans roadside. She had been hit in the skull with a cinder block, stabbed in the wrist, and choked to death.

Horrifically, Dupas had removed her left breast and stuffed it into her mouth.

Justice Stephen Kaye, in handing down the verdict, said Dupas left her body "by the side of a road, in a desolate place, as a disgusting display of loathing for the deceased and contempt for her dignity".

"Not content with what you had done to her in life, you robbed her of her dignity in death," he said.

"You had, over almost three decades, terrorised women in this state."

Less than a month after Maher's killing, Dupas struck again, murdering Mersina Halvagis as she knelt in front of her grandmother's grave in a Greek Orthodox cemetery, in Melbourne suburb Fawkner.

Advertisement
Advertise with NZME.

He stabbed her 87 times, and dumped her body in an empty plot three graves from her grandmother.

Nine witnesses placed Dupas at the cemetery that day, and he was a regular at the hotel across the street. As with two of his other victims, he slashed wildly at her breasts, but did not remove them.

It wasn't until 2007 that Dupas was finally charged for this murder, and found guilty, his third guilty verdict.

Interestingly, the former lawyer who was set to testify in the nursing home murder this October was instrumental in seeing Dupas charged with the 1997 graveyard killing, telling the court that he confessed in jail and even re-enacted the murder.

"You seem to be motivated by a deeply entrenched, perverted and sadistic hatred of women," Justice Elizabeth Hollingworth said, sentencing Dupas to his third life term.

"A complete contempt for them — and their right to live."

Advertisement
Advertise with NZME.

This article was first published on news.com.au.

Save

    Share this article

Latest from World

World

TV show where immigrants compete for US citizenship considered by Homeland Security

17 May 07:22 AM
World

Russian drone attack on minibus in Ukraine kills nine civilians

17 May 06:24 AM
World

How 10 prisoners made a daring escape from New Orleans jail

17 May 05:57 AM

The Hire A Hubby hero turning handyman stereotypes on their head

sponsored
Advertisement
Advertise with NZME.
Recommended for you
'Had to weather the storm': Moana Pasifika top Blues
Super Rugby

'Had to weather the storm': Moana Pasifika top Blues

17 May 09:34 AM
'Armed police, open the door': Cinema cleared as officers sweep mall; man arrested, one on run
New Zealand

'Armed police, open the door': Cinema cleared as officers sweep mall; man arrested, one on run

17 May 09:21 AM
Auckland FC visit Melbourne Victory for first leg of semifinal
Auckland FC

Auckland FC visit Melbourne Victory for first leg of semifinal

17 May 09:20 AM
$15 million remains up for grabs, two players $500,000 richer
New Zealand

$15 million remains up for grabs, two players $500,000 richer

17 May 09:35 AM
Warriors hold off late comeback from Dolphins for nail-biting win
Warriors

Warriors hold off late comeback from Dolphins for nail-biting win

17 May 07:45 AM

Latest from World

TV show where immigrants compete for US citizenship considered by Homeland Security

TV show where immigrants compete for US citizenship considered by Homeland Security

17 May 07:22 AM

The TV show would feature pre-vetted contestants and 'celebrate the immigration process'.

Russian drone attack on minibus in Ukraine kills nine civilians

Russian drone attack on minibus in Ukraine kills nine civilians

17 May 06:24 AM
How 10 prisoners made a daring escape from New Orleans jail

How 10 prisoners made a daring escape from New Orleans jail

17 May 05:57 AM
South Korea’s ex-President quits party amid election turmoil

South Korea’s ex-President quits party amid election turmoil

17 May 04:54 AM
Gold demand soars amid global turmoil
sponsored

Gold demand soars amid global turmoil

NZ Herald
  • About NZ Herald
  • Meet the journalists
  • Newsletters
  • Classifieds
  • Help & support
  • Contact us
  • House rules
  • Privacy Policy
  • Terms of use
  • Competition terms & conditions
  • Our use of AI
Subscriber Services
  • NZ Herald e-editions
  • Daily puzzles & quizzes
  • Manage your digital subscription
  • Manage your print subscription
  • Subscribe to the NZ Herald newspaper
  • Subscribe to Herald Premium
  • Gift a subscription
  • Subscriber FAQs
  • Subscription terms & conditions
  • Promotions and subscriber benefits
NZME Network
  • The New Zealand Herald
  • The Northland Age
  • The Northern Advocate
  • Waikato Herald
  • Bay of Plenty Times
  • Rotorua Daily Post
  • Hawke's Bay Today
  • Whanganui Chronicle
  • Viva
  • NZ Listener
  • What the Actual
  • Newstalk ZB
  • BusinessDesk
  • OneRoof
  • Driven CarGuide
  • iHeart Radio
  • Restaurant Hub
NZME
  • About NZME
  • NZME careers
  • Advertise with NZME
  • Digital self-service advertising
  • Book your classified ad
  • Photo sales
  • NZME Events
  • © Copyright 2025 NZME Publishing Limited
TOP
search by queryly Advanced Search