Australian woman guilty of triple murder involving poisonous mushrooms

Australia is known for its surfers, cute koalas and barbecues with thick steaks. But lately, all the attention has been focused on a very unpleasant lunch in Leongatha (Victoria). There, fifty-year-old Erin Patterson served her in-laws a classic beef Wellington, but with a surprise no one would wish for: poisonous mushrooms. The result? Three deaths and a trial that even Netflix would be jealous of.

Poisonous mushrooms in the leading role
According to the court, it was no foolish mistake: Erin Patterson was found guilty this week of three murders and one attempted murder. The murder weapon? Not a knife or a gun, but a serving of death cap mushrooms, also known as every mycologist’s nightmare.
The victims were her former in-laws Don and Gail Patterson, plus Gail’s sister Heather. Only Ian Wilkinson, Heather’s husband, survived the infamous dinner.
Sick after twelve hours
The lunch began with a pretext. Patterson had invited her in-laws under the guise 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 meal, the guests began to become 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 going home after a medical check-up. While her guests lay seriously ill in intensive care, she maintained that it was all 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 colour
Victim Heather had previously told someone that Erin had a different-coloured plate from everyone else. Coincidence? Maybe. But in a case where everything is suspicious, nothing goes unnoticed.
More lies came to light during the trial. Patterson initially said she had bought the mushrooms at an Asian supermarket. Later, she admitted that she had picked them herself, in a place known to be home to poisonous varieties.
No remorse, just silence
The woman herself remained noticeably silent during the verdict. She listened to the judgment without saying a word and did not shed a tear. It is still unknown whether she will appeal. But with a possible life sentence looming, it would be understandable.
Just this: how poisonous are those mushrooms, really?
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, when your liver is already in serious trouble. Want to play it safe? Just don’t pick them.
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