In the sun-drenched streets of Mosman Park—one of Perth’s most exclusive enclaves, where ocean breezes mask hidden desperation—a family’s final act of despair has taken a shocking new turn. Police have confirmed that the second handwritten letter discovered inside the Mott Close home belongs to Jarrod Clune’s handwriting. The chilling revelation suggests the 50-year-old father may have single-handedly devised the plan to end his life and those of his wife Maiwenna “Mai” Goasdoue, 49, their teenage sons Leon, 16, and Otis, 14, along with the family pets—without their full knowledge or consent. “Not everyone agreed with this plan,” sources close to the investigation indicate the letter contained a line exposing division in the family’s final moments, shattering any notion of a unified decision.

The bodies were discovered on January 30, 2026, around 8:15 a.m., when a carer arrived for a routine visit to support the two non-verbal autistic boys. Instead of greeting her, she found a brief warning note taped to the front door: words to the effect of “Don’t enter” and “Call police.” Emergency responders entered a house frozen in tragedy—Jarrod and Mai’s bodies in separate areas of the rear property, the boys elsewhere inside, and the two dogs and cat also deceased. No signs of struggle or external foul play; the scene screamed premeditation.

The first note served as a grim alert, but it was the second letter—structured like a formal document—that cracked open the full horror. Police handwriting analysis has now pinned the authorship squarely on Jarrod. The missive reportedly detailed financial instructions for after their deaths, reflections on the family’s overwhelming mindset in recent days, and a level of planning that pointed to murder-suicide. But the bombshell phrase—“Not everyone agreed with this plan”—has ignited speculation that Mai and the boys were not fully on board. Jarrod, perhaps driven to the edge by isolation, exhaustion, and perceived failures in the system, may have acted alone in executing the unthinkable, leaving his loved ones unaware until it was too late.

The couple had been devoted parents to Leon and Otis, both profoundly autistic and non-verbal, requiring constant care. Friends and advocates claim recent NDIS funding cuts or denials had left the family feeling utterly abandoned—told their boys were “too difficult,” rejected at every turn for adequate support. Jarrod and Mai fought tirelessly, but the pressure mounted relentlessly. In the affluent suburb, where neighbors rarely glimpse behind closed doors, the Clune-Goasdoue household hid a daily battle that grew unbearable.

Jarrod, a former Christ Church Grammar School alumnus with a wide circle from his youth, was seen as steady and committed. Mai, originally from France, brought warmth and advocacy through social media for autism awareness. Yet behind the facade, despair festered. The second letter’s content—now confirmed as Jarrod’s—suggests he alone mapped out the end, perhaps believing it spared his family future suffering. But the line about disagreement hints at resistance, a final fracture in a family already cracking under strain.

Western Australia Police, led by Acting Detective Inspector Jessica Securo, have treated the deaths as double murder-suicide from the outset, with the notes forming critical evidence. “The second note was pivotal,” sources say, outlining the mindset and preparations. No external threats, no intruders—just a household imploding from within.

The community reels in disbelief. Tributes pile outside the home: flowers, cards, dog toys, bowls of water for the lost pets, white ribbons fluttering from trees. Grandfather Michael Clune, living nearby, returned to the property days later—a broken figure amid the lifted cordon. School communities mourn Leon and Otis, remembered as gentle boys deserving of a world kinder than the one they knew. Leon’s cheerful personality lit up those around him; Otis brought quiet joy despite profound challenges.

Premier Roger Cook called it an “unimaginable tragedy” rippling across the state. Opposition Leader Basil Zempilas urged pathways for better mental health and disability support. The Autism Association of WA pleads for families in crisis to seek help, insisting resources exist even when hope feels lost.

This isn’t merely a private sorrow—it’s a stark indictment of systemic failures. The NDIS, meant to empower, has drawn fire for bureaucratic walls and funding shortfalls. Advocates claim the family battled repeated rejections, leaving them isolated and terrified for their sons’ futures. “They were so beaten down,” one friend said, “so fearful they could see no way out.”

The revelation that Jarrod’s handwriting dominates the second letter—and the suggestion Mai and the boys may not have consented—adds layers of heartbreak. A father’s plan, executed in silence, robbing his family of choice in their final breath. The pets’ deaths underscore the totality: no one left behind to suffer.

As investigations continue, Perth demands answers. How many families teeter on the edge in silence? How many notes are written in desperation before it’s too late? The Mosman Park home, once filled with routines and love, now stands as a haunting warning.

Jarrod Clune’s words—“Not everyone agreed with this plan”—echo through the suburb’s quiet streets, a final, tragic confession that the decision was his alone. Four lives extinguished, three pets gone, a community forever changed. The search for justice and reform begins now—before another family reaches the same breaking point.