Published On 8 Sep 2025
Patterson is guilty of serving lunch laced with toxic mushrooms to her mother-in-law, father-in-law, and her mother-in-law’s sister, leading to their deaths. She was also convicted of attempting to murder the sister’s husband, who survived after spending weeks in the hospital. The estranged husband, Simon, was invited but did not attend the July 2023 lunch at her home in Leongatha, southeast of Melbourne.
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Justice Christopher Beale stated that the crime’s substantial planning and lack of remorse warranted a lengthy sentence. The effect “is not limited to the direct victims” and has caused “devastating impact on her own children and other family members,” said Beale at the hearing in Melbourne.
Life Sentence
Both prosecution and defense lawyers agreed that a life sentence was suitable for Patterson. The defense requested parole eligibility after 30 years, while prosecutors argued she should never be considered for parole. The court determined that Patterson is to serve a minimum of 33 years before eligible for parole, meaning she could be considered for release at age 81.
Beale accepted evidence that Patterson had intended to poison her husband as well, had he attended. She falsely claimed to have cancer to lure them to her home. Additionally, she had specifically avoided eating the tainted meal, using different dinnerware to ensure her safety.
Beale did not speculate on her motives. Patterson claimed that the mushrooms were added by accident. She has been in custody since her arrest and is kept isolated for her safety, with limited prison contact.
Patterson now has 28 days to appeal her sentence, but no decision has been made.
‘Half-alive’
Korumburra, a close-knit community where the victims lived, has been deeply affected by these deaths. The court received 28 victim impact statements, with several read aloud during the hearings. Ian Wilkinson, the only survivor and a local pastor, expressed profound grief and stated, “I only feel half alive without her.” He and the family felt the media attention was traumatic, as the trial captured national interest and was broadcast live for the first time in the Supreme Court of Victoria’s history.
This case has already inspired multiple books, documentaries, and a drama series. Coverage reached millions of Australians, highlighting the community’s trauma and the public’s intense interest in the case.