Taye, Rylan, Arye, and Kadyn Cockman

Family photo. All have pale skin and are smiling. A teenage boy with dark hair, wearing glasses and a black shirt; a teenage girl with brown hair, wearing a necklace and blue dress; a girl with dark-blond hair, wearing a white shirt; a woman with curly dark-brown hair, wearing a blue flowered dress, and a boy with brown hair wearing a blue shirt. They are photographed outdoors, arms around one another.Name: Taye Cockman.
Age at death: 13.

Name: Rylan Cockman.
Age at death: 12.

Name: Arye Cockman.
Age at death: 10.

Name: Kadyn Cockman.
Age at death: 8.

Died: May 11, 2018.
Cause of death: Multiple homicide.
Location: Margaret River, Western Australia, Australia.
Disability: Autism; Rylan also had chronic pain.

Non-disabled victims: Cynda Miles, age 58; Katrina Miles, age 35.

Details:
Arye, Kadyn, Rylan, and Taye were all killed by their grandfather in a mass murder-suicide. Their mother and grandmother were murdered in the same event.

The family lived on a farm, where the four children were home-schooled, and were working on making the farm self-sustaining. They grew vegetables and even built their own dam.

The four children all kept journals, and Taye, the oldest, was becoming an accomplished writer. All the children were working on learning to swim.

Case status:
Peter Miles (Grandfather), deceased.

Source:
‘Such lovely people’: Community in shock at WA murder-suicide
Inside remote farmhouse seven people shot dead in Osmington, Australia
PICTURED: The family who live at the ‘mass murder-suicide farmhouse’
Margaret River Tragedy: 7 Dead In Suspected Murder-Suicide In Western Australia
Mum and four ‘autistic’ kids among seven dead in Australia ‘mass-murder suicide’
Four autistic children and their mother among seven found dead in Australia
Police continue probe into WA murders
Grandfather suspected of murder-suicide in Australia family massacre
Tributes for family in Margaret River suspected murder-sucide
‘We are devastated’: Grandparents, mother and four children killed in murder-suicide in Australia
Who is Peter Miles, what happened in Osmington and how is the granfather linked to the murder-suicide shooting?
Grandparents, mom and kids shot dead in Australia murder-suicide
Western Australian police say seven shooting deaths were murder-suicide
Grandad kills wife, daughter and FOUR autistic grandkids, then himself
Cops investigating whether gun owning grandfather was behind murder of 7
Tributes for family murdered in rural WA
Who were the family killed in the Margaret River mass shooting?
Three guns found at scene of murder-suicide belonged to grandfather
Mom and 4 Children With Autism Among 7 Victims of Australian Murder-Suicide — and Grandfather Is Suspect
The grandfather suspected of shooting seven family members
Pictured: Mum and Four Children Killed In ‘Murder Mass Suicide’
Osmington massacre suspect is four dead autistic children grandfather
‘He didn’t snap, he planned this’
The mystery of the Miles family and a murder-suicide that shocked the world
Osmington murder-suicide suspect, grandfather Peter Miles, sounded vague’ day before worst mass shooting in Australia for 22 years
Peter Miles: Margaret River grandfather had ‘sense of failure’
‘Sense of failure’ led to WA farm murders
Bloodshed in Australia: Grandfather suspected of gunning down his wife, daughter, and four autistic grandchildren
Grandad ‘planned the mass-shooting of my four children,’ devastated dad says
Margaret River, WA shooting: Father of murdered children speaks out
Dad Whose 4 Children with Autism Died in Murder-Suicide Says Kids’ Grandfather Planned Attack
My family was ripped apart by violence – and the killer was not a ‘good bloke’
Father of children killed in suspected murder-suicide claims grandfather planned the deadly shooting
Grandfather Suspected of Killing 6 Relatives Battled Depression After Son’s Suicide, Friend Says
Margaret River Massacre, Peter Miles, Katrina Miles
Australian feminists deny mental health crisis behind Margaret River murder-suicide
Margaret River community calls for support after mass murder
Margaret River shooting: Katrina Miles’ friends, community want better mental health

Nancy Barclay

No PhotoName: Nancy Barclay.
Died: January 24, 2018.
Age at death: 83.
Cause of death: Strangled.
Location: Perth, Western Australia, Australia.
Disability: Alzheimer’s disease.

Details:
Nancy and her husband had been married for 63 years. One night, she forgot to take her sleeping tablets; so instead of going to sleep, she went to sit at the kitchen table instead. Finding her there when he woke in the early morning, Nancy’s husband allegedly strangled her until she died.

Case status:
Harold Barclay (Husband), charged with murder, released on bail; died before he could be tried.

Source:
Man killed wife to put her ‘out of her misery’
Elderly husband accused of murdering wife of 60 years in their suburban home
Man, 85, charged with murdering his dementia-suffering wife, 83
Elderly Perth man charged with murder of 83-year-old sick wife
Harold Barclay: Man accused of killing wife who had Alzheimer’s granted bail
Accused ‘mercy killing’ husband dies in hospital

Sarah-Jane Gatt

Tilted photo of a young woman with messy brown hair, wearing a denim jacket and smiling at the camera.Name: Sarah-Jane Gatt.
Died: January 3, 2018 (Body found; died April 20-24, 2017).
Age at death: 40.
Cause of death: Unspecified homicide.
Location: Kensington, New South Wales, Australia.
Disability: Unspecified; on disability pension; bulimia, drug addiction.

Details:
Sarah-Jane’s body was found in her bathtub, where it had been for months after her death. In the interim, her partner continued to collect her disability pension.

Sarah wanted to become a model when she was younger and went to school for it, but the diet pills she took to stay thin were the beginning of her problems with eating disorders and drugs. She became the mother of four children, but was unable to care for them because of her addiction. She wanted to become a counselor to help others.

Case status:
Andrew Baker (Partner), charged with murder and social security fraud.

Source:
Murder-accused boyfriend admits seeing body in bath
Lover’s grim bathtub discovery
Man charged with murder of Melbourne woman found in bathtub
No-show in Vic death welfare fraud case
Kensington dead body: Mum Sarah Gatt died months before bathtub find
What happened to Sarah?
Man charged with murder of Melbourne woman Sarah Gatt after body found in bathtub

Mathew Dunbar

Photo of Mathew Dunbar, a middle-aged man with a receding hairline, gray eyes, and a friendly smile.Name: Mathew Dunbar.
Died: August 2, 2017.
Age at death: 42.
Cause of death: Suffocated due to helium inhalation.
Location: Walcha, New South Wales, Australia.
Disability: Depression, leg injury.

Details:
Mathew was a farmer who used his land to raise sheep.

After he made her the sole heir of his large property, Mathew’s partner made up a cocktail of sedatives and fed it to Mathew; when he was unconscious she gassed him with helium. She claimed that Mathew had committed suicide due to his depression, but when police checked her computer, they found evidence that they say shows she had been researching how to commit murder. Mathew’s partner had also been arrested and charged with attempted murder years ago for setting the house on fire with her previous husband inside, but that charge was withdrawn.

Case status:
Natasha Beth Darcy (Partner), convicted of murder, sentenced to 40 years in prison.

Source:
Natasha Beth Darcy found guilty of murdering partner after saying he had taken his own life | Daily Mail Online
NSW woman ‘not upset’ at partner’s death
Nutribullet used to blend cocktail of drugs in grazier murder: court
Woman charged over death of NSW farmer allegedly searched ‘murder’ before his death

Jonathan Crabtree

Photo of Jonathan Crabtree, a young man with light skin and brown hair, wearing a T-shirt.Name: Jonathan Crabtree.
Died: July 18, 2017.
Age at death: 26.
Cause of death: Opiate poisoning.
Location: Upper Coomera, Queensland, Australia.
Disability: Developmental disability, TBI from car accident.

Details:
Jonathan and his two disabled sisters were allegedly abused by their mother, who repeatedly sedated them with prescription drugs, likely worsening the effects of their disabilities. Jonathan’s sister Erin died in 2012, a victim of an opiate overdose; but her death had initially been ruled a suicide.

After Jonathan was hurt in a car accident, he had to take opiates and became addicted. His mother allegedly encouraged his addiction and even manipulated him into robbing a pharmacy for Tramadol. He died of an overdose of opiates, which police say his mother gave him after forging a suicide note.

Jonathan’s other sister survived their ordeal and was rescued when the murders were discovered.

Case status:
Maree Crabtree (Mother), charged with two counts of murder, grievous bodily harm, torture, fraud, and armed robbery.

Source:
Dramatic turn in court for mum accused of murdering kids, torturing woman
Mum’s strange decision before deaths
Witness claims mum accused of murdering children wished son was dead: court
Gold Coast mum Maree Mavis Crabtree accused of murdering her two disabled children
‘Very controlling’: Chilling allegations against Qld mum accused of killing her disabled kids
Mum’s strict rules before alleged murder
Mom murdered her two adult children for insurance payouts, police say
Australian mother arrested after she allegedly poisoned her disabled kids
Gold Coast mother killed two adult children for financial gain, police allege
Maree Crabtree ‘told disabled son to hold up a chemist’ | Daily Mail Online
Mum, 51, charged with murdering her kids told one to rob a chemist
Mother accused of poisoning her disabled adult children to death bagged $500k in insurance
‘Killer mum’ claimed $500k in insurance for disabled kids
Mum allegedly poisoned two children, prepared suicide note
Queensland mother allegedly murdered her two children with disabilities for money
Mother charged over children’s murders
QLD mother charged with murder, torture after allegedly poisoning two children to death
Friend says murdered Jonathon Crabtree was ‘full of life’
Jonathan Crabtree tried to call best mate an hour before his death
Australian mother arrested for the alleged murder of her two disabled children
Gold Coast mother killed two adult children for financial gain, police allege
Son of murder-accused had been ‘trying to pick up his life’ before he was found dead
Pictured: Disabled siblings ‘poisoned to death by rat-loving mother’
Australian mum ‘poisoned, killed disabled children for financial gain’, police claim
Murder-accused mother used prescription drugs to control children: police
Police say murder-accused mum helped son secure $200,000 disability benefits, then staged his suicide
Mum accused of disabled kids’ murder said one got Autism from a needle
Australian woman kills two ‘disabled’ adult children for financial gains
Mum partied as Erin died alone
Father of murdered siblings tried to have his son put in care
The missing Sprite cup in the police case against an accused double murderer

Ozlem Karakoc

Photo of Ozzie Karakoc, a woman with dark-brown hair and light freckled skin, wearing a bright pink jacket.Name: Özlem “Ozzie” Karakoç.
Died: July 14, 2017.
Age at death: 34.
Cause of death: Drowned.
Location: Dandenong, Melbourne, Victoria, Australia.
Disability: Bipolar disorder.

Details:
Ozzie’s ex-boyfriend killed her because she had ended the relationship and wanted to marry another man. He drowned her in the bathtub, and then claimed that they had had a suicide pact (there is no evidence that they ever did).

Case status:
Murat Davsanoglu (Ex-boyfriend), convicted of murder, sentenced to 18-23 years.

Source:
Man jailed for drowning girlfriend after she told him she was marrying someone else
Man jailed for drowning girlfriend after she told him she was marrying someone else
‘Suicide pact’ man facing murder trial for girlfriend’s bath drowning
‘You left us too soon’: Family pays tribute to young mum found dead in Lalor
Melbourne man ‘drowned partner in the bath in suicide pact’
Vic man to stand trial over bath murder
Tributes pour in for Melbourne mum allegedly murdered by partner
Mother allegedly dumped in abandoned house in ‘suicide pact’

Helen Dansie

Photo of Helen Dansie, an older woman with fair skin and short curly gray hair. She is wearing a flowered scarf with a pink sweater and smiling broadly.Name: Helen Dansie.
Died: April 16, 2017.
Age at death: 67.
Cause of death: Drowning.
Location: Adelaide, South Australia, Australia.
Disability: Stroke.

Details:
Helen’s husband picked her up from her nursing home, went to a park, and pushed her into a pond, where she drowned. He believed she had become a burden to him, and had taken out a life insurance policy on her four days prior.

She was a retired microbiologist. At the nursing home, she liked playing chess and doing crossword puzzles.

Case status:
Peter Rex Dansie (Husband); charged with murder. First trial ended in mistrial; second trial ended in conviction for murder. Sentenced to 25 years. Died in prison in 2024.

Source:
Man who killed his disabled wife dies in prison
Life sentence stands for killer who pushed disabled wife into pond
Killer who pushed wife’s wheelchair into pond loses appeal
Real life: My dad staged my mum’s murder as an accident
Lawyer for wife-killer Peter Dansie compares his murder conviction to George Pell case
Man killed wheelchair-bound wife by pushing her into pond
Adelaide man guilty of murdering wife who drowned in pond
This is what accused Adelaide wife-killer Peter Rex Dansie told police on the day his wife died
‘Suitcase full of condoms’: Adelaide murder accused bought ticket to China
Alleged wife killer replied ‘no comment’ when son asked about her death
Dansie to face new murder trial in October
Disabled woman’s husband ‘carefully planned her murder’
Husband charged with murder of wheelchair-bound wife found in pond
Murder charge
Man charged with murder of wife who drowned in Adelaide pond
Wheelchair-bound wife drowned in ‘planned attack’
Husband charged with murder of wheelchair-bound wife
SA man charged over Adelaide pond death
Husband charged with his wheelchair-bound wife’s murder
Tiny pond where a wheelchair-bound woman was mysteriously found dead
Veale Gardens pond drained as police investigate Helen Dansie’s death
Wheelchair drowning death unexplained, despite autopsy, police say
Detectives return to scene of pond death
Pond death: ‘Of course it was an accident’
Twist in parklands pond death mystery
Man accused of drowning wife had allegedly searched internet for ‘cheap funerals’
Man accused of pushing disabled wife into pond pleads not guilty to murder
Man accused of drowning wheelchair-bound wife fronts court
Man charged with drowning wheelchair user wife in Adelaide pond to face trial by judge
Husband ‘pushed wife’s wheelchair into pond for insurance pay-out’
Man accused of drowning wife seemed ‘unfazed’ when paramedics arrived, court hears
Man, 70, accused of drowning disabled wife in pond after she ‘became a burden’
Man accused of drowning wife with disabilities saw her as a ‘cost burden’, court hears

Tyson Clark-Robertson

Photo of a man with a beard and messy brown hair; he has blue eyes and light skin and looks slightly surprised or concerned.Name: Tyson Timothy Clark-Robertson.
Died: July 20, 2016; body found April 11, 2017.
Age at death: 24.
Cause of death: Head trauma.
Location: Mayfield, Tasmania, Australia.
Disability: Unspecified; received disability pension.

Details:
Tyson lived with his ex-girlfriend, who had recently started dating their housemate. The housemate became angry and hit him in the head with a hammer, killing him. They buried him in a shallow grave. For the next seven months, they pretended Tyson was still alive by impersonating him on social media and stole his disability pension from his bank account.

Case Status:
Ian Rosewall, pleaded guilty to murder, sentenced to 12.5 to 22 years.
Renae Lorraine Donald (Ex-girlfriend), pleaded guilty to being an accessory after the fact to murder, sentenced to 3-6 years.

Source:
STATE OF TASMANIA v RENEE LORRAINE DONALD, COMMENTS ON PASSING SENTENCE
Murderer ‘lost it’ after victim’s ‘paedo dog’ comment, court hears
Human remains found at Launceston house, three charged

Janice and Robyn Frescura

Photo of Janice and Robyn Frescura. Janice is an older woman with fair skin and gray hair; Robyn is a middle-aged woman with brown hair and fair skin. Both women are wearing glasses, shirts and jackets.Name: Janice Frescura.
Age at death: 68.
Disability: Lung cancer.

Name: Robyn Frescura.
Age at death: 50.
Disability: Unspecified.

Died: November 3, 2016.
Cause of death: Gunshot.
Location: Booral, Queensland, Australia.

Details:
Janice and her daughter Robyn were shot to death in a murder-suicide.

Case status:
John Frescura (Husband/father), deceased.

Source:
Three dead in apparent murder-suicide
Father calls police during murder-suicide
Three dead in suspected murder-suicide on Queensland’s Fraser Coast

Harold Nolan

No PhotoName: Harold Nolan.
Died: October 24, 2016.
Age at death: 73.
Cause of death: Stabbed.
Location: Melbourne, Victoria, Australia.
Disability: Elderly disabled.

Details:
Convinced she was going to be jailed for fraud, Harold’s ex-wife stabbed him to death to prevent him from being sent to a nursing home.

Case status:
Renee Louise Nolan (Ex-wife), charged with murder, found not guilty by reason of mental impairment because she was suffering depression and “a pathological level of exhaustion”. Sent to secure hospital for 25 years.

Source:
Woman charged with ex-husband’s murder in Mitcham
Killer granny fuelled by depression
Money worries drove deluded grandmother to kill sick ex-husband while he slept
Ex-wife charged over fatal stabbing
Woman, 69, charged with stabbing her husband to death
Woman housed in secure hospital for murder