Mushroom killer loses appeal; Australian court orders life without parole

Overview

Updated 1 hour ago

Erin Patterson served beef Wellington laced with death cap mushrooms to four relatives in July 2023; three died. On October 30, 2026, Victoria's Court of Appeal upheld her murder convictions and resentenced her to life without parole.

Patterson had been eligible for parole after 33 years. The appeal court agreed with prosecutors that the sentence was too lenient and removed the parole option. She joins a small group of Australian offenders who will die in prison unless a higher court intervenes.

Why it matters

Patterson becomes one of very few Australian women sentenced to life without parole. Only the High Court can change that.

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Key Indicators

Murder convictions upheld

Patterson remains convicted of killing Don Patterson, Gail Patterson and Heather Wilkinson.

Appeal grounds rejected

A three-judge panel dismissed every argument in Patterson's conviction appeal.

33 years

Parole eligibility removed

The Court of Appeal revoked the non-parole period that would have allowed parole.

Days to seek High Court leave

Patterson has 28 days from the ruling to file for special leave to appeal.

Voices

Curated perspectives — historical figures and your fellow readers.

People Involved

Erin Patterson

Convicted triple murderer

Serving life without parole in Victoria

Justice Stephen McLeish

Justice of the Victorian Court of Appeal

Delivered the unanimous ruling against Patterson

Simon Patterson

Estranged husband of Erin Patterson

Cancelled the lunch at the last minute

Ian Wilkinson

Surviving victim

Recovered but has ongoing health issues

Organizations Involved

Victoria's Court of Appeal

Appellate court

Rejected Patterson's appeal and increased her sentence

The division of Victoria's Supreme Court that hears criminal appeals.

High Court of Australia

Supreme federal court

Potential next venue for Patterson's appeal

Australia's final court of appeal, which hears cases only with its permission.

Timeline

July 2023 October 2026

6 events Latest: Today

Tap a bar to jump to that date

October 2026
Appeal dismissed; life without parole
Today Legal

Victoria's Court of Appeal rejects all seven grounds and resentences Patterson to life without parole.
Today
August 2026
Appeal hearing
Legal

Patterson's lawyers argue seven grounds, including a jury hotel mix-up and contested evidence.
August 2026
September 2025
Life sentence with parole option
Legal

The trial court sentences Patterson to life with a 33-year non-parole period.
September 2025
2025
Jury convicts Patterson
Legal

A Victorian jury finds Patterson guilty of three murders and one attempted murder.
2025
August 2023
Three relatives die
Incident

Don Patterson, Gail Patterson and Heather Wilkinson die in hospital; Ian Wilkinson survives.
August 2023
July 2023
Patterson serves toxic lunch
Incident

Four relatives eat beef Wellington laced with death cap mushrooms at Patterson's Leongatha home.
July 29th, 2023

Scenarios

High Court declines to hear Patterson's case

Likely Resolves by Q2 2027

Discussed by: Melbourne criminal defence lawyer Lauren Cassimatis told ABC NewsRadio she expects an appeal to the High Court; legal observers note special leave is rarely granted.

Patterson must file for special leave within 28 days. The High Court grants it only in cases with important legal questions or serious error. Unless she identifies one, the life-without-parole sentence stands.

High Court grants leave and reopens the case

Unlikely Resolves by End of 2027

Discussed by: A minority view; the High Court grants special leave in a small fraction of applications.

A grant of leave would lead to a full High Court hearing on whether her trial was unfair. Overturning the convictions would require the court to find serious trial error, a high bar the Court of Appeal just cleared.

Patterson drops the appeal

Possible Resolves by Nov 30, 2026

Discussed by: Possible given the unanimous dismissal of all seven grounds.

Patterson's legal team could decide not to pursue the High Court. That would end the case and leave the life-without-parole sentence in place.

Historical Context

2 moments from history that rhyme with this story — and how they unfolded.

2001

Katherine Knight: first Australian woman with life without parole (2001)

Katherine Knight murdered her partner in rural New South Wales in 2000. In 2001 a court sentenced her to life without parole, the first time an Australian woman had received that sentence.

Then

Knight has remained in prison since; her 2006 appeal against the sentence was dismissed.

Now

Her case established that Australian courts will impose life without parole on women in exceptional cases.

Why this matters now

Patterson is one of the few Australian women to receive the same sentence, placing her in an extremely small group.

2003–2023

Kathleen Folbigg: conviction overturned after 20 years (2003–2023)

Kathleen Folbigg was convicted in 2003 of killing her four children. Later genetic evidence showed her daughters carried a rare cardiac mutation that could explain their deaths; she was pardoned and released in 2023.

Then

Folbigg's convictions were quashed and she was freed after two decades.

Now

Her case showed Australian courts can revisit convictions when genuinely new evidence emerges.

Why this matters now

Patterson's High Court route would need new evidence or proven trial error. Folbigg's case shows the path exists, but it took new science to open it.