Erin Patterson Loses Appeal As Court Rules She Must Spend Life Behind Bars

Erin Patterson, the convicted “mushroom murderer”, will spend the rest of her life behind bars following the Victoria’s Court of Appeal rejecting her bid to overturn her convictions, ruling that the calculated nature of her crimes warranted a life sentence without the possibility of parole.

In a landmark decision handed down today, Friday, October 30, Court of Appeal justices Stephen McLeish, Leslie Taylor and Peter Kidd dismissed Patterson’s appeal against her convictions, while siding with prosecutors who argued that her original sentence was inadequate.

Patterson had originally been sentenced to life imprisonment, however had a non-parole period of 33 years, following a jury finding her guilty of three counts of murder and one count of attempted murder. Back in 2023, Patterson invited four relatives over for lunch to her home in Leongatha, serving them a poisonous beef Wellington laced with death cap mushrooms.

The victims were Patterson’s estranged in-laws, Don and Gail Patterson, and Gail’s sister, Heather Wilkinson. Heather’s husband, Ian Wilkinson, was the sole survivor and notably didn’t attend court to hear the verdict on her appeal.

Simon Patterson, Erin’s estranged husband, had also been invited to the lunch, but he decided not to attend the day before.

Now, following the dismissal of her appeal, the court has determined that the premeditation and callousness involved in the killings warranted a harsher punishment, making Patterson only the second Australian woman to receive a life sentence without the possibility of parole.

“This offending was extraordinarily cold and calculated, and stands to be denounced in the strongest terms,” Justice McLeish said. “In all the circumstances, after anxious consideration, we have concluded that the case involved such shocking criminality that it is inappropriate to fix a non-parole period.”

Why Was Erin Patterson’s Appeal Rejected?

Patterson’s legal team had sought to overturn her convictions on several grounds, alleging a series of irregularities throughout her highly publicised 11-week trial in Victoria, in 2025.

One of the main concerns raised was the accommodation of jurors at a Traralgon hotel during their deliberations, where members of the prosecution and police involved in the case were also staying. Her barrister, Richard Edney, argued that the arrangement represented a fundamental failure to uphold the separation of the jury, calling it a “catastrophic” decision.

The Court of Appeal ultimately dismissed the argument, noting that the jurors had confirmed there was no interaction between jurors and members of the prosecution. The court also rejected claims that Patterson had been subjected to unfair cross-examination, that Patterson had been “forced” into giving evidence, and that prosecutors had improperly handled the question of motive.

In considering the prosecution’s separate appeal against her sentence, the justices concluded that Patterson’s original non-parole period failed to adequately reflect the gravity of her offending. The court found that Patterson’s series of choices, beginning with the invitation to lunch and continuing through the preparation and serving of the poisonous meal highlighted her murderous intent. Her subsequent attempts to cover up evidence, even as her victims lay dying, were also central to the court’s decision.

So, What Happens Next For Erin Patterson?

Patterson now has limited options available ton her, with her team permitted 28 days to decide if they would like to appeal to the High Court of Australia. Failing this, Patterson will remain behind bars for life, with no prospect of parole.

Meanwhile, the public fascination surrounding the case shows little sign of waning. A new Paramount+ limited series, titled Mushroom Murders: There’s More to Unearth, has recently been announced, chronicling the 97 days between the now-infamous 2023 lunch at Patterson’s Victorian home and her eventual arrest.

Does Erin Patterson Have Children?

Yes, Patterson has a son and daughter, born in 2009 and 2014 respectively. At the time of the murders, her children were living with her full time, up until she was taken into custody in late 2023. As of October 2026, Erin Patterson’s son is either 16 or 17, while her daughter would be 11 or 12, depending on their date of birth.

Their father, Simon Patterson, was separated from Erin but the couple was not divorced.