ABC News: Top Stories
· collected 2026-08-19 · by ROD MCGUIRK Associated Press
Erin Patterson, a 51-year-old woman convicted of poisoning four relatives with death cap mushrooms, is appealing her three murder convictions in a two-day hearing at the Victoria state Court of Appeal. The key aspect of this appeal is an alleged breach of sequestration, where jury members were housed in the same hotel as a police witness and prosecution team members. Prosecutors are also appealing the leniency of Patterson's sentence, seeking to have her serve life without possibility of parole instead of at least 33 years behind bars before she can apply for release on parole. The defense is arguing that Patterson did not deliberately source the death cap mushrooms and was unfairly prejudiced by evidence presented during the trial.
Written by the local model on 2026-08-19,
using this article's own text rather than the other coverage of the
same event (that is the story summary below).
Story summary
Erin Patterson, a 51-year-old Australian woman, is appealing her conviction for murdering three relatives and attempting to kill another by serving them a meal containing death cap mushrooms. She was found guilty in July last year of killing her husband's parents, Don and Gail Patterson, and his aunt Heather Wilkinson, at her home in Leongatha, Victoria, and sentenced to life in prison with the possibility of parole after 33 years. Patterson's lawyers argue that the jury sequestration was fundamentally flawed because jurors were housed in the same hotel as the police and media, which could have influenced their verdict. The prosecution is also appealing against the sentence, arguing that a 33-year parole period is "manifestly inadequate" given the severity of the crimes. In a separate challenge, Crown prosecutors are urging the court to reject Patterson's appeal, stating that her crimes were "truly dreadful" and that she should never be allowed to leave prison. The Court of Appeal in Melbourne will reserve its decisions on both appeals, meaning it could take weeks or months before the outcome is known.
Written for “Erin Patterson's Murder Appeal” on 2026-08-31,
grounded in this article and the 6 other(s) covering the same event.
Erin Patterson appeals 3 murder convictions over death cap mushroom lunch
Triple-murderer Erin Patterson is appealing her convictions for poisoning four of her estranged husband’s relatives with death cap mushrooms
MELBOURNE, Australia --
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Patterson → appeal → mushrooms
Triple-murderer Erin Patterson appealed her convictions Wednesday for poisoning four of her estranged husband’s relatives with death cap mushrooms.
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Patterson → appeal → mushrooms
Three judges of the Victoria state Court of Appeal are hearing her appeal over two days against her convictions on three counts of murder and one of attempted murder relating to a lunch of beef Wellington pastries she prepared at her rural home in Leongatha in July 2023.
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she → hear → July
Prosecutors are appealing the leniency of her sentence.
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Prosecutors → appeal → sentence
The 51-year-old was sentenced in September last year to life in prison and must serve at least 33 years behind bars before she can apply for release on parole.
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she → sentence → parole
Prosecutors will argue at the hearing Thursday she should be sentenced for life without possibility of parole, Prosecutor Brendan Kissane said.
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Kissane → argue → parole
Defense lawyer Richard Edney’s first ground for appeal Wednesday was an error that resulted in jury members being sequestered in the same hotel as a police witness and members of the prosecution team.
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members → result → team
“This was a very serious breach of sequestration,” Edney told the court.
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Edney → tell → court
Kissane said there was no evidence to support that ground.
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Kissane → say → ground
“There was no actual contact between any juror and any other person,” Kissane said.
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Kissane → be → juror
Another defense lawyer, Veronika Drago, said there was no evidence that Patterson had read online posts that reported death cap mushrooms had been seen near the towns of Loch and Outtrim.
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mushrooms → say → Loch
The trial heard evidence from a telecommunications expert that Patterson’s phone connected to towers near Outtrim and Loch.
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phone → hear → Outtrim
Drago said the evidence was that Patterson’s phone had possibly been in the area.
“That in and of itself, in our submission, illustrates just how dangerous and unfair that evidence was” on Patterson’s trial, Drago said.
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Drago → say → trial
Prosecutor Jeremy McWilliams said the evidence showed that Patterson had an opportunity to deliberately source death cap mushrooms shortly before the lunch.
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Patterson → say → lunch
The defense team also argued that trial judge Christopher Bale had caused “unfair prejudice” by allowing evidence from Patterson’s Facebook “friends” into the trial.
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Bale → argue → trial
Patterson’s estranged husband, Simon Patterson, was invited to the fatal lunch but did not attend.
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husband → invite → lunch
His parents, Don and Gail Patterson, and Gail’s sister, Heather Wilkinson, died.
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parents → die → ?
Heather’s husband, Ian Wilkinson, spent weeks in hospital, but survived.
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husband → spend → hospital
Patterson argued during her trial that the poisoning was an accident.
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poisoning → argue → trial
Vargo argued a miscarriage of justice occurred when the prosecution opened their case saying there was no evidence of a motive for the poisonings, then closed the case suggesting Patterson's animosity toward her husband's parents and the broader Patterson family was the motive.
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animosity → argue → parents
Questioned by one of the three judges, Justice Lesley Taylor, Vargo she was not accusing prosecutors of deliberate professional misconduct.
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she → question → misconduct
“It is certainly not a direct allegation or suggestion of that, but what is clear in our submission from the reading of all of the material is that where things started and where it finished by the end of the prosecution case were different,” Vargo said.
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Vargo → start → case
If Patterson's appeal succeeds, the judges could overturn her convictions and order a retrial.
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judges → succeed → retrial
Patterson did not attend court on Wednesday and watched the hearing by video in prison.
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Patterson → attend → prison
In pretrial testimony only made public after her trial, Simon Patterson said he suspected his wife had deliberately made him seriously ill with dishes.
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him → make → dishes
No poisons were ever found.
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poisons → find → ?
Erin Patterson was initially charged with three counts of attempting to murder him three times between November 2021 and September 2022.
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Patterson → charge → November
She had denied all charges.
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She → deny → charges
Prosecutors dropped all charges relating to the husband before her trial began in April 2025.
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trial → drop → April
