Erin Patterson will never walk free. On Friday morning, three judges of Victoria’s Court of Appeal in Melbourne dismissed the convicted triple murderer’s bid to overturn her convictions — and then went further, handing her a harsher sentence than the one she was trying to escape.
Patterson, 52, appeared by video link from prison as Justices Stephen McLeish, Lesley Taylor and Peter Kidd delivered a decision that took about 15 minutes. The court set aside the 33-year non-parole period imposed when she was sentenced last year and replaced it with life imprisonment with no parole at all. Under the old sentence, she could eventually have applied for release in her 80s. Now there is no release date to apply for.
“This offending was extraordinarily cold and calculated,” the judges said. They described her conduct as “characterised by an elaborate series of deceptions” and concluded that “in all the circumstances, after anxious consideration, we have concluded that the case involved such shocking criminality that it is inappropriate to fix a non-parole period.”
It was, in effect, two defeats in a single morning. Patterson had appealed against her convictions, arguing that her trial had involved a substantial miscarriage of justice. Prosecutors had appealed in the opposite direction, arguing that her sentence was manifestly inadequate. The court rejected Patterson’s appeal and granted the prosecution’s.
The case began with a lunch. In July 2023, Patterson invited four relatives to her home in Leongatha, a small town in rural Victoria in south-eastern Australia, and served them beef Wellington. Hidden inside the dish were death cap mushrooms, among the most poisonous fungi in the world. Three of her guests died: Don and Gail Patterson, both 70, the parents of her estranged husband, and Gail’s sister, Heather Wilkinson, 66. The fourth guest, Heather’s husband Ian Wilkinson, a local pastor, fell gravely ill but survived after weeks in hospital.
Patterson has always maintained her innocence, saying she did not know the mushrooms were poisonous. A jury disagreed. After a months-long trial in 2025, with more than 50 prosecution witnesses and eight days of Patterson herself in the witness box, the jury returned guilty verdicts on three counts of murder and one count of attempted murder. She received three life sentences, plus 25 years for the attempted murder, with a non-parole period of 33 years.
Her appeal, heard in August, rested on seven grounds. Her lawyers argued, among other things, that the trial had been compromised when jurors were housed in the same hotel as prosecutors and a police witness while they were deliberating — a mix-up her team called catastrophic. They also challenged rulings by the trial judge, Justice Christopher Beale, including the exclusion of some evidence about mushrooms found at her home.
The appeal court granted leave on two of the seven grounds, then dismissed both. The other five were rejected outright. The judges found no basis to disturb the jury’s verdicts.
The prosecution’s argument proved the more consequential of the two appeals. Prosecutors pointed to the number of victims, the planning that went into the lunch, the fact that Patterson did not alert medical staff treating her guests to the poisoning, and what they described as a lack of remorse. Justice McLeish noted that, in the court’s view, her “murderous intent dated back to the invitations to lunch” and persisted through the meal itself. A sentence that left open the possibility of release, the court held, did not match the gravity of what she had done.
For readers outside Australia, some context helps. The Court of Appeal is the highest court in the state of Victoria; only the High Court of Australia, the country’s top court, sits above it. A non-parole period is the minimum time a prisoner must serve before they can even ask to be released — it is not a release date. Removing it entirely, as the court did here, is rare and reserved for crimes the law treats as exceptionally grave. Patterson has until the end of November to seek leave to appeal to the High Court, but legal experts quoted in Australian coverage noted that her options are now narrow: a second appeal against conviction would require fresh and compelling evidence.
Why this matters beyond one courtroom in Melbourne is straightforward. The Patterson trial became one of the most closely followed criminal cases in the world, not because of celebrity or politics, but because of its setting: a family lunch, a home-cooked meal, a woman who insisted she had made a terrible mistake. The appeal tested whether that trial had been fair. Three senior judges have now said it was — and that the original punishment, far from being too harsh, was too lenient. For the families of Don and Gail Patterson and Heather Wilkinson, the decision closes the legal argument over guilt. For Ian Wilkinson, the sole survivor, it means the woman who poisoned him will remain in prison for the rest of her life.
That finality is the story. Appeals exist to correct error, and Patterson’s legal team argued forcefully that errors had occurred. The court examined those arguments and rejected them, then used the same hearing to impose the maximum the law allows. When the hearing ended, Patterson showed no emotion on the video link, according to courtroom reports. The convictions stand. The sentence is now life, without parole.
