Updated / Friday, 30 Oct 2026 00:01

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Erin Patterson was found guilty last year of murdering her husband's parents and elderly aunt by lacing their beef Wellington meal with highly toxic death cap mushrooms

Australian mushroom murderer Erin Patterson lost a bid to overturn her convictions, failing to prove she was wrongfully jailed for killing three people with a poisoned lunch.

Patterson was found guilty last year of murdering her husband's parents and elderly aunt, deliberately lacing their beef Wellington meal with highly toxic death cap mushrooms.

However, the 52-year-old maintained her triple murder convictions were a "miscarriage of justice", urging the Court of Appeal in Victoria state to either set her free or have the case heard again.

Each death cap mushroom contains enough poison to kill a healthy adult

The court said it had "dismissed" her application, finding insufficient grounds to try the case again.

It also found that Patterson's original jail sentence - which saw her eligible for release after 33 years - did not match the gravity of her crimes.

The court ruled Patterson's non-parole period should be set aside, meaning the 52-year-old is likely to die in prison.

Source: RTÉ News

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