Australian woman guilty of triple murder with poisonous mushrooms

Australia is known for its surfers, cute koalas and barbecues with thick steaks. But lately, all attention has turned to a very unpleasant lunch in Leongatha (Victoria). This is where fifty-year-old Erin Patterson served her in-laws a classic beef Wellington, but with a surprise nobody would wish on anyone: poisonous mushrooms. The result? Three deaths and a trial Netflix itself would be jealous of.

Poisonous mushrooms in the starring role
According to the court, it was not a foolish mistake: Erin Patterson was found guilty this week of three murders and one attempted murder. The murder weapon? Not a knife or gun, but a serving of death cap mushrooms, also known as every mycologist’s nightmare.
The victims were her former parents-in-law Don and Gail Patterson, plus Gail’s sister Heather. Only Ian Wilkinson, Heather’s husband, survived the ill-fated dinner.
Sick after twelve hours
The lunch began with a ruse. Patterson had invited her in-laws under the pretext of an important family meeting about medical news. She supposedly had ovarian cancer. Spoiler alert: that turned out to be a lie too.
Twelve hours after the dinner, the guests began to fall seriously ill. At the hospital, it soon became clear that they had suffered mushroom poisoning. Don, Gail and Heather died several days later.
But she wasn’t sick?
What makes it even more suspicious: Erin herself felt nothing. She even insisted on simply going home after a medical check-up. While her guests lay seriously ill in intensive care, she maintained that everything was an unfortunate coincidence.
And then things got even darker: she had given her children leftovers from the meal. But, she claimed, she had “removed the mushrooms”.
A plate with a different color
Victim Heather had previously told someone that Erin had a different-colored plate from the rest. Coincidence? Maybe. But in a case where everything is suspicious, nothing goes unnoticed.
During the trial, even more lies came to light. Patterson had initially said that she had bought the mushrooms at an Asian supermarket. Later, she admitted that she had picked them herself, in a place known for poisonous specimens growing there.
No remorse, just silence
The woman herself remained strikingly quiet during the verdict. She listened to the judgment in silence and did not shed a tear. Whether she will appeal is still unknown. But with a possible life sentence looming, it would be understandable.
Just this: how poisonous are those mushrooms, anyway?
Death cap (Amanita phalloides) is responsible for 90% of all fatal mushroom poisonings worldwide. Just one cap can be fatal to an adult. Symptoms only begin after 6–12 hours, by which time your liver may already be seriously damaged. Want to play it safe? Just don’t pick them.
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