Published by Global Banking & Finance Review®
Posted on June 5, 2025
3 min readLast updated: January 23, 2026
Erin Patterson denies using kitchen scales to measure lethal mushrooms in the alleged murder of three relatives, claiming it was a terrible accident.
By Alasdair Pal
SYDNEY (Reuters) -An Australian woman accused of murder denied measuring out a "fatal dose" of poisonous mushrooms on her kitchen scales to kill three elderly relatives of her estranged husband, as she was cross-examined by the prosecution on Thursday.
Erin Patterson, 50, is charged with the July 2023 murders of her mother-in-law Gail Patterson, father-in-law Donald Patterson and Gail's sister, Heather Wilkinson, along with the attempted murder of Ian Wilkinson, Heather's husband.
The prosecution accuses her of knowingly serving the guests lethal death cap mushrooms as part of a Beef Wellington at her home in Leongatha, a town of about 6,000 people some 135 km (84 miles) from Melbourne.
She denies the charges, which carry a life sentence, with her defence calling the deaths a "terrible accident".
Under cross-examination on Thursday by the prosecution, Erin Patterson was asked whether a series of photos of mushrooms placed on weighing scales in her kitchen was evidence she had been measuring a "fatal dose" to serve to her lunch guests.
"I suggest that you were weighing these death cap mushrooms so that you could calculate the weight required for the administration of a fatal dose for one person. Agree or disagree?" barrister Nanette Rogers said.
"Disagree," Patterson replied.
Patterson accepted under cross-examination that she had lied to police and medical professionals following the lunch when she was asked whether she had ever foraged for mushrooms or owned a food dehydrator, which was later found in a waste disposal plant containing traces of death caps.
The accused has previously admitted she lied about being diagnosed with cancer, but on Thursday denied doing so in order to lure her guests to have lunch at her home.
"I suggest that you never thought you would have to account for this lie about having cancer, because you thought that the lunch guests would die," Rogers said.
"That's not true," Patterson replied.
While being examined by her own barrister Colin Mandy, Patterson said earlier on Thursday that she did not intentionally pick death cap mushrooms, or knowingly serve them to her lunch guests.
Nor had she pretended to be sick after the lunch to avoid becoming a suspect in the case, she said.
The trial has captured public attention across Australia, with podcasters, journalists and documentary-makers from local and international media descending on the town of Morwell, where the trial is being held, about two hours east of Melbourne.
State broadcaster ABC's daily podcast about the proceedings is currently Australia's most popular, while many domestic newspapers have run live blogs on trial developments.
Justice Christopher Beale, the judge presiding in the trial, told the jury the cross-examination of the accused would probably continue into next week.
The prosecution rested its case on Monday after a month of evidence from relatives and medical, forensic and mushroom experts.
After the defence rests, the parties will discuss whether the prosecution might seek to reopen its case in light of defence evidence, Beale told the jury.
The trial, set to conclude this month, continues.
(Reporting by Alasdair Pal in Sydney; Editing by Kate Mayberry)
Erin Patterson is charged with the murders of her mother-in-law, father-in-law, and aunt-in-law, along with the attempted murder of her estranged husband.
The prosecution accuses Patterson of knowingly serving lethal death cap mushrooms as part of a Beef Wellington to her guests.
The trial has captured significant public attention across Australia, with various media outlets covering it extensively, including live blogs and podcasts.
Patterson's defense argues that the deaths were a 'terrible accident' and that she did not intentionally serve death cap mushrooms to her guests.
During cross-examination, Patterson admitted to lying to police and medical professionals but denied doing so to lure her guests to lunch.
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