In a shocking and deeply tragic incident that has rocked the Perth suburb of Mosman Park, Western Australia, authorities have revealed that a second letter was discovered inside the family home where four members of a family — including two teenage boys — were found dead in what police are investigating as a suspected murder-suicide.

The discovery of the second note has prompted questions about the circumstances leading up to the deaths of Jarrod and Maiwenna Clune and their teenage sons Leon and Otis. Police say the contents of the letter offer disturbing insight into the family’s mindset and may explain elements of the tragedy that unfolded inside their Mott Close residence.

The Mosman Park Tragedy: What Happened

Emergency services were alerted on the morning of January 30, 2026, after a person known to the family — believed to be a carer — arrived at the Mosman Park home for a scheduled appointment and noticed something was wrong. ﹙Police confirmed the deaths of all four family members at the scene.﹚

Officers discovered Jarrod Clune (50) and his partner Maiwenna Goasdoue (49), along with their teenage sons Leon (16) and Otis (14), deceased inside various parts of the home. Three family pets — two dogs and a cat — were also found dead.

Police quickly began treating the incident as a suspected murder-suicide and launched a detailed investigation. No weapons were found at the scene, and authorities have said there were no prior reports of domestic violence involving the family.

Two Notes Found at the Scene

Two handwritten notes were recovered by police.

The first was discovered on the front door and contained a warning telling anyone who approached “do not enter” and urging them to contact police immediately.

The second letter — found inside the home after officers began their investigation — is being treated as potentially pivotal. According to reports, that note contained more detailed information, including instructions about how the family wanted their finances to be handled, and other explanations that may shed light on what the family was thinking before the tragic deaths.

Inspector Jessica Securo, who addressed media shortly after police sealed off the quiet street, suggested the contents of the letter may help investigators understand the family’s intentions and state of mind.

Who Were the Clunes?

Jarrod and Maiwenna were described by friends and acquaintances as devoted parents who cared deeply for their sons. Both Leon and Otis were understood to have had significant health challenges and lived with high support needs, including autism.

The boys were reportedly well known to local disability support services, and both had participated in educational programs tailored to their needs, including at Christ Church Grammar School where they were former students.

Despite the challenges their children faced, neighbors and local community members said the Clunes often appeared to be a loving and supportive family. They had bought their home in Mosman Park in 2016 and lived there together for several years before the tragedy.

Investigative Focus and Official Statements

Police have indicated that the investigation is ongoing and that no definitive conclusions have been reached about the precise circumstances that led to the deaths. Authorities have not publicly confirmed whether the contents of the second letter reveal factual explanations or simply reflect the family’s emotional state.

Western Australia Police have stressed that detectives are carefully examining all evidence — including forensic analysis, witness statements, and any material recovered from the home — to form a clearer picture.

Detective Inspector Jessica Securo said the presence of two notes and the manner in which the tragedy unfolded have made this case unusual and demanding for investigators.

Community and Family Reaction

The deaths have devastated family members, friends, and the wider community. A support worker who had known the boys for more than a decade paid tribute to their lives, describing both Leon and Otis as kind, joyful young people who deeply impacted those who cared for them.

Maddie Page, who worked closely with the family, said the Clune boys will always be remembered for their unique personalities and the love they shared with those around them. She also strongly criticized gaps in disability support systems that she believes may have contributed to the immense pressure the family faced.

Tributes also flowed from online communities and advocacy groups, many grieving the loss of two young lives and questioning whether more could have been done to support the family.

Calls for Greater Support and Broader Conversations

In the wake of the tragedy, disability advocates, educators, and mental health professionals have called for increased support for families caring for children with high support needs. The deaths highlighted what some described as systemic shortcomings in the resources available for parents struggling to provide around-the-clock care.

Mary Butterworth, CEO of Developmental Disability WA, said the incident underscored the need for more trained support workers and better funded care services — particularly for families with complex needs.

Premier Roger Cook of Western Australia described the event as an “unimaginable tragedy” that underscores the importance of community support systems and robust social services. He urged anyone in distress to seek help and challenged policymakers to assess existing frameworks for helping families coping with significant emotional and physical strain.

Experts Weigh In on Notes and Family Dynamics

Experts in forensic psychology and family crisis response suggest that multiple notes in murder-suicide cases can reflect complex emotional states and levels of planning. While police have not confirmed the exact contents of the second letter, analysts say it may reveal the family’s intentions or mindset shortly before the event.

Some experts point out that a second note containing financial instructions may indicate preparation and thought given to the aftermath, rather than a moment of impulsive despair. However, investigators caution that interpreting such materials requires careful consideration and cannot be taken as a definitive explanation until forensic and testimonial evidence is fully understood.

Timeline of the Incident

January 30, 2026: A friend or carer arrives at the Mosman Park home and finds a note on the door instructing “do not enter” and to call police.

Police respond and discover the bodies of the four family members and the deceased pets inside the house.

A second letter is found inside the home and becomes a key focus of the investigation, including analysis by detectives and forensic specialists.

Authorities confirm no history of reported domestic violence and no weapons were used in the deaths.

Looking Ahead: Investigation Continues

Despite the discovery of the second letter and insights from police investigators, many questions remain unanswered. Detectives are still piecing together the events that led to this tragic outcome and are working to understand whether this was a planned act by both parents or driven by overwhelming stress and despair.

Authorities have maintained that the investigation remains active and that they will release additional details as they become available. They reiterated to the public to avoid speculation and allow the forensic process to unfold, with dignity for the victims and respect for the grieving community.

Support Services and Community Outreach

In the aftermath, various support services have been highlighted for those affected by trauma, stress, or loss. Mental health organizations continue to offer assistance to the Clune family’s friends, neighbors, and first responders who were confronted with the grim scene.

The message from authorities and health professionals alike has been clear: if you or someone you know is struggling, reach out for help — support is available.

Conclusion

The Mosman Park murder-suicide remains a devastating event for the Perth community. The discovery of a second letter inside the home adds a layer of complexity to警方調查, but authorities emphasize that it does not conclusively explain the motivations behind the deaths. As investigators continue their exhaustive work, the focus remains on understanding the full facts behind this heartbreaking tragedy and offering support to those left in its wake.