Australian appeals court orders life-without-parole sentence for mushroom-poison murder case

An appeals court in Victoria dismissed Erin Patterson's challenge to her convictions and upheld prosecutors' request for a life-without-parole term after she was found guilty of murdering four of her estranged husband's relatives with death-cap mushrooms. The three judges said the case involved "shocking criminality" and described the conduct as "extraordinarily cold and calculated," concluding that a non-parole period was inappropriate. Patterson, who was previously sentenced to three life terms for murder and 25 years for attempted murder, will remain incarcerated for the rest of her life; she would have been eligible for release at age 82 under the earlier sentence.

The murders occurred during a family lunch at Patterson's rural home in Leongatha in July 2023, resulting in the deaths of her parents-in-law Don and Gail Patterson and Gail's sister Heather Wilkinson. Their husband Ian Wilkinson survived after weeks of hospitalization and later testified about the impact of the crime. Patterson claimed the mushrooms were added accidentally, but the court noted she had destroyed evidence, denied foraging for mushrooms and made false statements about their source.

Patterson is the second woman in Australia sentenced to life without parole, following Katherine Knight's 2001 conviction. She may seek a final appeal to the High Court. The case has attracted extensive media coverage and is being adapted into a six-episode series for Paramount+, with actress Melanie Lynskey set to portray Patterson.