MORWELL, AUSTRALIA: Erin Patterson, a 50-year-old home cook from rural Victoria, has been found guilty of murdering three members of her estranged husband’s family by serving them a beef Wellington laced with deadly mushrooms. A 12-member jury delivered the verdict on Monday, concluding a high-profile trial that has captivated global audiences.
Patterson was also found guilty of the attempted murder of a fourth guest, Pastor Ian Wilkinson, who survived after spending weeks in intensive care.
The tragic incident occurred in July 2023, when Patterson hosted a lunch at her home in Morwell for her former in-laws — Don and Gail Patterson — as well as her husband’s aunt, Heather Wilkinson, and her husband Ian. Her estranged husband, Simon Patterson, declined the invitation, reportedly feeling “uncomfortable” amid ongoing disputes over child support.
According to testimony, Patterson prepared individual servings of beef Wellington, featuring premium cuts of meat and a mushroom duxelles. Shortly after the meal, all four guests fell ill. Don, Gail, and Heather died within days from organ failure caused by amatoxin — a potent toxin found in death cap mushrooms.
During the trial, Patterson claimed the poisonings were accidental and that she had mistakenly used the toxic mushrooms, which are nearly identical in appearance to edible varieties. Her defence insisted it was a “terrible accident,” and that she had no intention of causing harm.
However, prosecutors argued that Patterson deliberately served the tainted meal with murderous intent. They presented evidence that she lied about having cancer to lure guests to the lunch, and later misled police about owning a food dehydrator — later recovered in a rubbish tip with traces of death cap mushrooms.
A forensic investigation also revealed Patterson had previously visited websites identifying locations where death caps had been spotted near her home. Surviving guest Ian Wilkinson testified that Patterson’s meal was served on different colored plates, suggesting she may have avoided ingesting the same food.
The case drew widespread attention both in Australia and internationally, dubbed the “mushroom murders” by media outlets. True crime enthusiasts and reporters descended on Morwell as the court heard from dozens of expert witnesses, including doctors, toxicologists, and forensic analysts.
Patterson, a mother of two and an active member of the local community, was known for her interest in true crime. A friend described her as a “super sleuth” who often discussed infamous criminal cases online.
After more than two months of proceedings, the jury deliberated for one week before delivering a unanimous guilty verdict. Patterson will be sentenced at a later date.
