Mosman Park Deaths: Clune Family Murder-Suicide Tragedy

On a quiet Friday morning in one of Perth’s most affluent suburbs, a caregiver arriving at a family home found a hand-written note on the front door that would unravel an unimaginable tragedy. Four members of the Clune family—two parents and their two teenage sons—were found dead inside, along with their three pets, in what police are investigating as a suspected murder-suicide. The discovery at Mott Close in Mosman Park on 30 January 2026 has left investigators and community members grappling with questions that may take months to answer.

Victims: Jarrod Clune (50), Maiwenna Goasdoue (49), Leon (16), Otis (14) · Date Discovered: 30 January 2026 · Location: Mott Close, Mosman Park, Perth · Suspected Cause: Murder-suicide · Pets: 1 cat, 2 dogs

The table below consolidates verified information from official sources including WA Police statements and 7News reporting.

Who are the family of 4 dead in Mosman?

The four people found dead at the Mott Close home on 30 January 2026 have been identified as Jarrod Clune, 50, and Maiwenna Goasdoue, 49, the parents, along with their sons Leon, 16, and Otis, 14. The family lived in Mosman Park, an affluent western suburb of Perth known for its high property values and prestigious community.

Jarrod Clune and Maiwenna Goasdoue

The parents were described by police as having no prior history of family violence reported to authorities. Jarrod Clune is believed to have attended Christ Church Grammar himself, the same private school later attended by his sons. Detective Inspector Jessica Securo confirmed that “the family had no reported history of family violence with police,” a point emphasized given the nature of the suspected incident.

Brothers Leon and Otis

Leon, 16, and Otis, 14, both experienced significant health challenges and lived with autism, according to records from Christ Church Grammar. School records described the brothers as cheerful, social boys who loved friends and school activities. Both were enrolled at the prestigious private institution, where their academic and social lives unfolded before the tragedy.

Family pets

Three pets were also found dead inside the property—two dogs and a cat. Their presence adds to the scale of loss investigators documented at the scene, though police have not released details about how the animals died.

What has happened in Mosman Park?

A caregiver arrived at the Clune family home on the morning of 30 January 2026 and discovered a hand-written note affixed to the front door. The note contained two instructions: “don’t enter” and “call police.” The caregiver immediately alerted Western Australia Police.

Discovery of bodies

Police entered the Mott Close property around 8:15am and found the bodies of all four family members. The discovery also included three deceased pets. No weapons were found at the scene, though detectives have not confirmed the suspected method of death. A second note reportedly found inside the house reportedly contained details about the parents’ mindset, their level of planning, and instructions regarding family finances.

Police response

Western Australia Police Homicide Squad detectives immediately launched an investigation, treating the incident as a suspected murder-suicide. Police Commissioner Col Blanch later confirmed that investigators believe both boys were killed by their mother and father before the parents then took their own lives. The investigation was subsequently handed over to the WA Coroner after police completed their active phase.

Community reaction

The discovery shocked Mosman Park, an area typically associated with wealth and tranquility. Community members gathered to honor the victims following the incident, with neighbours and acquaintances struggling to process the news. The juxtaposition of the affluent suburb setting with the nature of the tragedy left many searching for understanding.

Investigators now face a case where careful planning appears evident yet no prior warning signs existed in official records—a combination that has confounded both police and mental health experts.

How did they die in Mosman Park deaths?

Police are treating the incident as a suspected murder-suicide. According to Commissioner Col Blanch, investigators believe both boys were killed by their parents before the parents completed their own deaths. The exact method remains under investigation, with toxicology results expected to take months to process.

Suspected manner

Western Australia Police have confirmed that no weapons were used in the incident, though investigators have not publicly disclosed the suspected cause of death for any individual. Commissioner Blanch stated in February 2026 that toxicology results would likely not be available immediately “given the timeframe these things can take.” The case has been transferred to the WA Coroner, who will determine official causes of death.

Investigation details

Detectives are examining CCTV footage from the neighbourhood and speaking with residents to reconstruct the family’s final hours. Police have not identified a public motive, noting only that investigations continue into the contents of the notes and the circumstances that led to the tragedy.

Mosman Park deaths update

Police Commissioner Col Blanch provided a public update on the investigation on 22 February 2026, confirming the case had transitioned from active police investigation to coronial oversight. Toxicology and other forensic tests remain ongoing, with results expected to take several more months.

Police statements

Commissioner Blanch addressed reporters, acknowledging the sensitivity of the case and the questions remaining unanswered. “I don’t know the answer to that [on toxicology], I would suggest not given the timeframe these things can take,” he said when asked about when results might be available. The commissioner emphasized that the formal coronial process would determine official causes of death.

February probe update

The transfer to the coroner means the active police investigation has concluded, though detectives remain available to assist the coroner’s inquest as required. No charges have been laid—and none can be laid given all involved parties are deceased.

Mosman Park deaths letter

Two notes were reportedly found at the scene—one on the front door and another inside the house. The contents of these documents have become central to understanding what investigators have described as a premeditated act.

Notes found

The first note, discovered by the caregiver on the front door, contained only two brief instructions: “don’t enter” and “call police.” This stark warning alerted the caregiver to something wrong and prompted the immediate police response that led to the discovery of the bodies. The second note, reportedly found inside the home, was substantially longer and contained details investigators say reveal the extent of the planning involved.

Second note details

According to media reports citing 7NEWS coverage, the second note revealed the parents’ mindset, the level of premeditation behind the act, and specific instructions regarding family finances. This internal document has not been made public, but investigators have confirmed it was among the evidence collected at the scene. The financial instructions suggest the parents had considered practical arrangements beyond the immediate act itself—a detail that has troubled investigators seeking to understand the full picture of what happened.

The family had no reported history of family violence with police.

— Detective Inspector Jessica Securo, Western Australia Police

I don’t know the answer to that [on toxicology], I would suggest not given the timeframe these things can take.

— Commissioner Col Blanch, Western Australia Police

For Western Australians following this case, the wait for toxicology results means the full picture of what happened at Mott Close remains incomplete. The coronial inquest will formally examine the evidence, hear expert testimony, and deliver findings that could take a year or more to emerge. Until then, the community is left with the stark facts of the discovery and the troubling implications of two written notes that suggest planning well beyond a moment of crisis.