
After a highly publicised and emotionally charged trial also infamously known as 'the mushroom trial,' Erin Patterson has been found guilty of three counts of murder and one count of attempted murder. The verdict was announced after nearly two months of courtroom proceedings at the Victorian Supreme Court in Morwell, followed by six and a half days of jury deliberation.
The case centred around a family lunch at Patterson's home in Leongatha in July 2023. A beef wellington dish served to four guests, Don and Gail Patterson, Gail's sister Heather Wilkinson, and her husband Ian, was laced with deadly death cap mushrooms. Don, Gail, and Heather died from poisoning; meanwhile, Ian Wilkinson, a local pastor, was the sole survivor.
The jury was satisfied beyond a reasonable doubt that Patterson deliberately included the lethal fungi in the meal she prepared and served.
Court Says No Motive Required
One of the key arguments raised by Patterson's defence was the absence of motive. Her barrister, Colin Mandy, insisted that although Patterson had a strained relationship with some of the victims, there was no compelling reason for her to want them dead. He described the deaths as a 'terrible accident.'
But legally, motive is not essential for a conviction in Victoria. What matters is the presence of a 'culpable state of mind' – intent to kill or cause serious harm. In the eyes of the jury, Patterson's actions met that threshold.

According to the Victorian Supreme Court, despite Patterson's claims of accidental contamination, she had sole control over the meal's preparation. This included the decision to use mushrooms whose source remained unconvincing under cross-examination.
A Web of Circumstantial Evidence
Although the case lacked direct evidence, meaning there were no eyewitnesses or footage, the circumstantial case against Patterson was substantial.
According to reports, Prosecutor Nanette Rogers presented several key points during the trial. Primarily, Patterson's own portion of the meal was mushroom-free. A food dehydrator allegedly used in preparing the mushrooms was later found discarded at a nearby tip.
Patterson initially told police she bought the mushrooms from a local market but later claimed she got them from an Asian grocer. Hence, doubts were cast over that claim during the trial.
While any single piece of evidence might have raised questions, the combination painted a compelling picture. In criminal law, circumstantial evidence can be just as powerful as direct proof. In this case, it was enough to convince all 12 jurors to return guilty verdicts.
The Role of the Jury and the Evolving Nature of Trials
The jury's task in this trial was far from simple. While public interest surged, they were repeatedly instructed not to read media reports, discuss the case, or conduct outside research. One juror was dismissed early on for allegedly breaching that rule.
Summing up lasted over six days, a reflection of how criminal trials have evolved. Both prosecution and defence counsel covered every possible angle, and Justice Christopher Beale delivered four days of judicial directions to ensure jurors had every piece of relevant law and context. This approach, while time-consuming, is now standard, designed to protect verdicts from being overturned on appeal.
That the jury took more than six days to deliberate shows how seriously they approached their task. In Victoria, a unanimous verdict is required for a murder conviction. That bar was met.
What Comes Next for Erin Patterson
Patterson now awaits sentencing, with a life term almost certain. According to Emeritus Professor in Law at the University of South Australia, Rick Sarre, the court is expected to reconvene next month. 'The maximum sentence is life imprisonment, and I'm anticipating that she'll get a life sentence, and then it just comes down to what the non-parole period will be,' he told The Guardian.
In Victoria, murder carries a maximum penalty of life imprisonment, with a standard minimum non-parole period of 30 years.
The number of victims and the public interest in this case are likely to influence the court's final decision. Though sentencing is still to come, Patterson's conviction has already brought some closure to the families affected, even if many questions about her motives and the events that led to that fatal lunch remain unanswered.