Erin Patterson was sentenced to life in prison by the Supreme Court of Victoria on Monday, with a non‑parole period of 33 years, for the deliberate poisoning of three relatives and the attempted murder of a fourth after a lunch in July 2023.
Justice Christopher Beale accepted Crown submissions that Patterson’s offending warranted the full penalty available under Victorian law and described the case as an “enormous breach of trust.” He said her failure to show remorse had compounded the victims’ suffering and that the offending had been meticulously planned.
Patterson, 50, was convicted by a jury of the murders of Don and Gail Patterson and Gail’s sister, Heather Wilkinson, and of the attempted murder of Pastor Ian Wilkinson. The four victims had eaten beef Wellingtons at Patterson’s home in Leongatha on July 29, 2023. Only Ian Wilkinson survived. Prosecutors said the food contained dried Amanita phalloides, commonly known as death‑cap mushrooms.
Justice Beale said he was satisfied Patterson bought a dehydrator to dry the mushrooms, served the meals on plates of different colours to those she used herself, and then misled health officials and police in an effort to conceal her crime. ‘‘You did so with the intention of killing them all,’’ he said. ‘‘You showed no pity for your victims. You engaged in an elaborate cover‑up of your guilt.’’
The judge recounted multiple lies Patterson gave after the lunch, including a claim that the mushrooms had come from an Asian grocery and a false story that she had cancer to elicit sympathy. He said it was implausible she did not understand how lethal the death caps would be and that the offending robbed the victims’ grandchildren of their grandparents.
Patterson maintained her innocence throughout the trial and showed little visible reaction as Justice Beale imposed the sentence, at times appearing subdued and emotionless. The court heard that she had spent about 15 months in restrictive conditions at the Dame Phyllis Frost Centre’s Gordon Unit, a management unit for high‑risk inmates where prisoners are locked down for most of the day.
Defence counsel Colin Mandy, SC, and the legal team had previously accepted a head sentence of life imprisonment but argued the court should fix a non‑parole period. They urged the judge to take into account the severe custodial conditions Patterson has endured and the probability she would remain isolated for years. ‘‘Plainly where a prisoner is held in isolation or separation … that’s a factor relevant to sentence,’’ Mr. Mandy told the court.
Crown prosecutors Dr. Nanette Rogers and Jane Warren urged the court to deny Patterson parole, citing the cruelty and planning behind the killings. Prosecutors referenced the 2017 Victoria case of Michael Cardamone, who received life without parole for a similarly brutal crime, to argue mercy should not apply. Justice Beale noted those submissions but concluded a non‑parole period should be fixed at 33 years, meaning Patterson will be about 83 before she is eligible to apply for release.
The court heard evidence that Patterson had misled emergency responders and forensics investigators in the days after the lunch. She was convicted after a trial in which jurors accepted the Crown’s account of planning, poisoning and subsequent attempts to hide the source of the food. The judge described the killings as among the worst of their kind.
The sentence drew strong public and media interest. More than 1,300 people tuned into a livestream of the hearing, and a large media contingent attended the court in Melbourne. Television cameras were permitted to broadcast the sentencing but Patterson was not filmed in the coverage.
Justice Beale said setting a parole date had been his ‘‘toughest task’’ in the case and acknowledged uncertainty about how long Patterson would remain in highly restrictive conditions. ‘‘Your honour cannot sentence on the basis of prediction or mere speculation,’’ Ms. Warren told the court, while the defence warned that indefinite isolation would amount to an additional, severe punishment.
Patterson has 28 days to lodge an appeal against her conviction and sentence. The court heard she has likely exhausted much of her personal wealth and, if she pursues an appeal, may seek publicly funded legal assistance to do so.
The July 2023 lunch and its aftermath left surviving family members and the local community reeling. Victim impact statements made during earlier hearings described extended and agonising deaths for those who consumed the poisoned food and profound grief for relatives. The verdict and sentence close a major criminal chapter in the region, but the prospect of appeals means the legal process may continue.