Mushroom murderer Erin Patterson is appealing. Here's what you need to know
The Australian, who notoriously poisoned her family members, is trying to overturn her conviction.
Erin Patterson, known as Australia's "mushroom murderer," is back in court a year after her conviction, seeking to overturn the verdict. Last September, Patterson, 51, received a life sentence for the murder of three relatives and the attempted murder of another, all stemming from a toxic mushroom meal served at her Leongatha, Victoria, home in 2023. She contends that her trial was unfair, citing issues with evidence, prosecutorial conduct, and an unusual incident involving the jury during deliberations.
Concurrently, prosecutors are appealing Patterson's sentence. While the judge allowed for parole eligibility after 33 years, the prosecution argues this is "manifestly inadequate" and that the triple murderer should never be released.
Patterson was found guilty of killing her in-laws, Don and Gail Patterson, both 70, and Gail's sister, Heather Wilkinson, 66. The victims consumed individual portions of beef Wellington containing death cap mushrooms at Patterson's rural Victoria residence in 2023. Heather's husband, Ian Wilkinson, a local pastor, survived the lunch after an extended hospital stay but continues to experience health problems from the poisoning.
Erin Patterson's estranged husband, Simon Patterson, was scheduled to attend the lunch but canceled at the last minute, partly due to his belief that his wife had repeatedly attempted to poison him over several years. Post-trial revelations indicated that he had previously suffered severe illness after eating her meals, including a coma, surgical removal of a significant portion of his bowel, and being twice told by his family to prepare for death.
Throughout her trial, Erin Patterson maintained that the deaths were a tragic accident and that her subsequent lies and attempts to dispose of evidence were a result of panic, fearing she would be blamed. Don and Gail Patterson died within days of consuming the mushrooms.
Patterson will not be present in court for the appeal, opting to appear via video link from the Dame Phyllis Frost Centre, a maximum-security prison near Melbourne where she is incarcerated.
In November, her legal team submitted a three-page document outlining seven grounds for appeal, which will be heard by three judges.
Firstly, Patterson's lawyers argue that certain evidence should have been excluded from the jury's consideration. This includes mobile phone tracking data suggesting she visited locations where death cap mushrooms had recently been sighted. They also contend that evidence from "Facebook friends," such as online messages where she expressed grievances about her in-laws and estranged husband Simon, at one point calling him a "deadbeat," should not have been permitted. Patterson's team asserts that this evidence was irrelevant and prejudicial, leading to a substantial miscarriage of justice.
Conversely, her lawyers claim that other evidence, specifically photos and images related to her long-standing hobby as a mushroom forager, which would have supported their argument of a tragic accident, was wrongly excluded by the defense.
Issues with the prosecution are also raised. Patterson's team alleges inconsistency regarding motive, stating that the prosecution initially disavowed arguing a specific motive but ultimately implied one. They also criticize the five-day cross-examination of Patterson by barrister Nannette Rogers, describing it as "unfair and oppressive" due to the tense exchanges and Rogers' accusations of repeated lying.
The most intriguing aspect of the appeal document concerns the jury deliberations. Due to the high-profile nature of the case, measures were taken to prevent external influence on the jury. During deliberations, they were housed in supervised accommodation with minimal contact with the outside world until a verdict was reached.
However, Patterson's lawyers claim a "fundamental irregularity" occurred that "fatally undermined" the integrity of the verdicts. A shortage of hotel rooms, exacerbated by media interest in the regional towns surrounding the courthouse, resulted in the jury sharing a hotel with members of the prosecution, a key police witness, and journalists. While the jury occupied an entire floor and the judge at the time stated there was no evidence of interaction with anyone linked to the case, Patterson's team, despite not raising concerns during the trial, now argues in their appeal filing that this situation "requires the quashing of the convictions and an order for a re-trial so that justice cannot only be done but be seen to be done."
The Department of Public Prosecutions (DPP) is appealing the length of Patterson's sentence. Justice Christopher Beale acknowledged last year that Patterson's crimes were among the most severe of their kind but stated that his decision to allow parole after 33 years was influenced by the "harsh prison conditions" she faced. He noted that she had already spent 15 months in solitary confinement at the time of her sentencing, where prisoners are isolated and meals are delivered through a small cell door opening. For her safety, he added, there was a "substantial chance" she would remain in an isolation wing "for years to come" due to the notoriety of her case.
The outcome of the appeal will not be immediate, with a decision potentially taking months. If the three judges in the Court of Appeal overturn her convictions, two possibilities exist: a retrial or an acquittal. If the prosecution's appeal is successful, Erin Patterson's parole period could be extended beyond 33 years, or she could face a sentence of life without parole.