Archive · 19 Aug 2026
Patterson Appeals Mushroom Murder Convictions as Prosecutors Seek No Parole
Erin Patterson was found guilty after three relatives died from poisonous mushrooms in a meal.
The meal was served at her home in Leongatha, Australia, in July 2023.
Ian Wilkinson, who also ate the meal, survived but became very ill.
Patterson says the poisoning was an accident and is asking an appeals court to overturn her convictions.
Her lawyers say some evidence should not have been used and that parts of the trial were unfair.
They also say there was a problem involving the jury while it was kept separate from others.
Prosecutors disagree and are separately asking for a harsher punishment.
They want Patterson to spend the rest of her life in prison without parole.
Erin Patterson, 51, is appealing convictions for murdering three relatives and attempting to murder Ian Wilkinson.
The victims died after eating a beef Wellington containing death cap mushrooms at Patterson’s Leongatha home in July 2023.
Patterson received three life sentences with a 33-year non-parole period after an 11-week trial.
Her lawyers cite seven appeal grounds, including disputed evidence, cross-examination, closing arguments and a jury-sequestering irregularity.
Victoria’s Director of Public Prosecutions says the sentence is “manifestly inadequate” and seeks life imprisonment without parole.
- Who
- Erin Patterson, the three people who died, Ian Wilkinson, Patterson’s defence lawyers and Victoria’s Director of Public Prosecutions.
- What
- Patterson is appealing her murder and attempted-murder convictions, while prosecutors are appealing her sentence and seeking life without parole.
- When
- The appeal hearings are scheduled over Wednesday and Thursday; the lunch occurred in July 2023 and Patterson was convicted in July 2025.
- Where
- The hearings are before the Victorian Court of Appeal in Melbourne; the lunch was held at Patterson’s home in Leongatha, Victoria.
- Why
- Patterson says the deaths were accidental and alleges trial errors, while prosecutors argue that her 33-year non-parole period is inadequate.
Prosecution
Defence
Convictions
Prosecution
Patterson was found guilty of killing three relatives and attempting to kill Ian Wilkinson after serving a meal containing death cap mushrooms.
Defence
Patterson maintains that the poisoning was accidental and argues that trial errors caused a substantial miscarriage of justice.
Trial evidence and procedure
Prosecution
Prosecutors oppose the defence challenge to the convictions and rely on the trial outcome, including evidence about how the meal was prepared and served.
Defence
The defence challenges mobile phone tower data, Facebook messages and social media posts, and alleges unfair cross-examination, new motive arguments and a problem involving the sequestered jury.
Sentence
Prosecution
The Director of Public Prosecutions says the 33-year non-parole period is “manifestly inadequate” and that possible solitary confinement should not have affected sentencing.
Defence
Patterson is seeking to overturn the convictions, which would remove the basis for her current sentence.
- Defendant
- Erin Patterson, 51
- Convictions
- Three murders and the attempted murder of Ian Wilkinson
- Victims
- Don Patterson, Gail Patterson and Heather Wilkinson
- Meal
- Beef Wellington containing death cap mushrooms
- Date and location
- July 2023 at Patterson’s home in Leongatha, Victoria
- Current sentence
- Three life sentences with a 33-year non-parole period
- Prosecution request
- Life imprisonment without the possibility of parole
- Appeal grounds
- Seven grounds, including disputed evidence, unfair cross-examination, closing arguments and a jury-sequestering irregularity
