Erin Patterson, pictured in August 2023, was convicted final month of poisoning her estranged husband’s members of the family with dying cap mushrooms.
Marta Pascual Juanola/The Age by way of Getty Photos
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Marta Pascual Juanola/The Age by way of Getty Photos
Erin Patterson was convicted final month of killing her in-laws with a meal laced with poisonous mushrooms. However freshly unsealed proof reveals new particulars in regards to the Australian lady’s case, together with her estranged husband’s allegations that she poisoned his meals on a number of events earlier than that fateful lunch.
Patterson, a 50-year-old mom of two, was discovered responsible final month of three counts of homicide and one rely of tried homicide in connection to a home-cooked meal she served her husband’s mother and father, aunt and uncle in July 2023.

All 4 of her friends had been later hospitalized with gastrointestinal signs, and three of them ultimately died of altered liver operate and a number of organ failure attributable to Amanita (dying cap) mushroom poisoning. Loss of life cap mushrooms are among the many most toxic on the earth, and had been noticed rising close to the place Patterson lived in Leongatha, a small city about 85 miles from Melbourne.
Patterson denied intentionally placing dying cap mushrooms within the beef Wellington she served and maintained that she had no motive to harm her husband’s family, although she admitted to mendacity about issues like foraging for mushrooms and proudly owning a meals dehydrator.
A jury convicted her after a nine-week trial filled with dramatic revelations and testimony from some 50 witnesses together with Patterson herself in addition to her estranged husband Simon, who had been invited to the lunch however pulled out the night time earlier than.
What the jury did not hear, nevertheless, was that Simon Patterson — and prosecutors — imagine that his spouse additionally poisoned him on a number of events in 2021 and 2022.
That is in keeping with proof that was not admitted through the trial. It was unsealed after Justice Christopher Beale lifted a gag order on Friday.

In court docket transcripts obtained by NPR, Simon described getting sick sufficient to be hospitalized from consuming meals Erin had ready for him, together with pasta bolognese, hen korma curry and a vegetable wrap. His private physician additionally testified about what he known as the “three near-death experiences,” certainly one of which resulted in Simon falling right into a coma and needing to have a part of his bowel surgically eliminated.
Whereas medical doctors could not decide the precise explanation for these episodes, Simon testified in October 2024 that he had turn into suspicious of Erin nicely earlier than she invited him and his family to lunch. The truth is, he stated he declined explicitly “as a result of I assumed there’d be a threat that she’d poison me if I attended.”
Erin Patterson denies intentionally poisoning Simon, and initially pleaded not responsible to an extra three counts of tried homicide in reference to these incidents. She was attributable to battle them in a second trial, after a decide dominated they need to be break up up. However prosecutors dropped these costs — with out rationalization — simply earlier than her trial started in April.
Simon alluded to these since-dropped costs within the early days of her trial, at a second when the jury wasn’t within the room. He stated from the witness field that he was “half-thinking in regards to the issues I am not allowed to speak about,” in keeping with the Australian Broadcasting Company (ABC).
“The authorized course of has been very troublesome,” he stated. “Particularly the best way it is progressed when it comes to the costs regarding me and my proof about that — or non-evidence now, I assume I’ve rather a lot to grieve and am grieving rather a lot about all these things right here, as I am certain you possibly can think about.”

Simon Patterson, pictured leaving Erin Patterson’s trial in Might, says he believes she additionally poisoned his meals on a number of events.
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Martin Hold/AFP by way of Getty Photos
What’s the new proof?
Simon and Erin separated in 2015 after eight years of marriage and a number of splits and reconciliations. Each testified that they remained on largely amicable phrases, co-parenting their two youngsters and even occurring holidays collectively.
Final October, when requested by Erin’s lawyer whether or not he agreed that there was “nothing untoward” about their relationship on the time of the alleged poisonings, Simon replied: “Um. In case you imply by untoward something that will point out that she’d attempt to kill me, then that is appropriate.”
The primary alleged incident occurred in November 2021, earlier than Erin and Simon had been attributable to take a mountain climbing journey with out the youngsters. She introduced a Tupperware of penne bolognese over to his home whereas he was packing, and he ate it later that night time. He testified that the subsequent morning, as their journey started, he began experiencing worsening vomiting and diarrhea and ultimately opted to go to the hospital.
“I believe I felt … worse inside myself, not a particular physique half,” Simon recalled. “I do not know whether or not that is the worry of the prolonged signs, or whether or not that was a bodily factor, or each, however I … felt like I used to be going downhill.”
He stated he was handled with fluids and anti-nausea treatment and launched the subsequent morning. Issues continued between him and Erin as regular, and some weeks later she invited him over for what he described as a household style take a look at: She was making hen curry and needed to check out varied ranges of spiciness.
Simon did not get sick from that meal. However he stated Erin made the identical curry on a tenting journey they took a number of weeks later, in Might 2022. He stated he assumed she was making every their most popular degree of spiciness however did not watch her put together the meal as a result of he was tending to the fireplace. He began exhibiting GI signs a number of hours later and went straight to the hospital.
Simon was discharged and went again to his home, however known as Erin a number of days later as a result of he wanted assist attending to the toilet — and the subsequent factor he remembered was waking up within the hospital. It seems he had been in a coma and had “a lot of surgical procedures” together with getting a part of his bowel eliminated, he stated.

Simon stated he discovered medical doctors had informed Erin — who as his spouse had the ability to make his medical selections — he would die with out surgical procedure, and even with it, dying was “possible.” He was discharged after 24 days within the hospital, and medical doctors informed him they’d achieved a variety of assessments however could not decide the reason for his sickness.
In September 2022, the Pattersons went for a stroll to catch up. Simon stated Erin introduced him a pre-made veggie wrap and that she ate the identical components “minus the pita bread wrap itself.” He stated he started to really feel sick fairly shortly on their stroll, they usually drove to his mother and father’ home, the place they known as him an ambulance as he continued vomiting.
“Fairly quickly within the ambulance journey I noticed that I used to be beginning to slur my phrases after which progressively because the journey went on, I misplaced increasingly more muscle operate and by the tip of the journey, all I may transfer was my neck, my tongue and lips, and I may see, so presumably my eyelids as nicely, I assume,” Simon later testified.
A routine stool pattern he had supplied that morning — earlier than consuming the wrap — indicated no apparent micro organism or irritation in his intestines, leaving medical doctors once more stumped as to what may have occurred.
Based on court docket paperwork, an intensive care specialist who reviewed Simon’s medical recordsdata in 2024 stated the reason for signs was possible acute versus persistent, and that the primary two incidents had been possible attributable to a “poisonous or an infective trigger.”
He couldn’t establish what these substances may have been, however stated Simon’s liver harm through the second sickness was not per typical mushroom poisoning.

Erin Patterson’s home in Leongatha, Australia, the place she served the July 2023 lunch that resulted within the hospitalizations of all 4 of her friends and the eventual deaths of three of them.
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Who did Simon inform?
Simon’s private physician urged he write down every part that occurred earlier than every of the instances he bought sick, telling the decide, “It did not match into any of my medical fashions that will account for all three of these issues.”
Simon stated he realized the one commonality was that Erin had ready the meals each time. After that, Simon stated he modified his advance directive to take away Erin’s decision-making authority, and quietly shared his suspicions along with his physician and a few family, together with his father.
His sister Anna-Marie Terrington testified that she had identified about Simon’s fears since 2022 and known as their dad earlier than the lunch to warning him. She stated he waved her off, saying one thing like “No, we’ll be OK.” Their mother and father, Donald and Gail Patterson, had been among the many lunch friends who died.

One other relative, Ruth Dubois — whose mom, Heather Wilkinson, died from the lunch and whose father, Ian Wilkinson, was the only survivor — testified that Simon bought a few of his members of the family collectively in a hospital chapel in August 2023, as their mother and father’ situations deteriorated.
“He needed to inform us that he had suspected that his personal sicknesses had been a deliberate act, that he had stopped consuming meals that Erin had ready, as a result of he suspected that she may need been messing with it,” she stated, “and that he was actually sorry that he hadn’t informed … our mother and father earlier than this, however he thought that he was the one individual that she was concentrating on and that they’d be protected.”
What occurs subsequent?
Erin Patterson faces a most penalty of life in jail on every of the three homicide costs she’s been convicted of already, plus as much as 25 years for the rely of tried homicide.
Beale, the decide, has set her two-day sentencing listening to to start on Aug. 25, the ABC studies. Individuals concerned within the case will be capable to make sufferer impression statements, with prosecutor Jane Warren telling Beale on Friday to count on “rather a lot” of them.
Patterson’s attorneys have stated they’ll attraction her convictions, in keeping with the Related Press. Below Australian regulation, they’ve till 28 days after her sentencing to formally achieve this.