NEWCASTLE – In a widely followed trial nearing its end, the woman accused of killing three members of her ex-husband’s family by serving them toxic mushrooms has testified in an Australian court on Monday.

Erin Patterson, 50, is facing charges for the deaths of her former in-laws, Don and Gail Patterson, both aged 70, and Gail Patterson’s sister, Heather Wilkinson, 66. She is also accused of attempting to kill Heather Wilkinson’s husband, Ian, 68. The alleged incident occurred after the four dined at Patterson’s residence in Victoria state in July 2023.

If convicted of attempted murder, she could receive up to 25 years in prison. In Victoria, a murder charge could result in a life sentence.

Her lawyer, Colin Mandy, previously told the Victorian state Supreme Court during the six-week trial the poisoning was accidental.

Patterson’s appearance as a defense witness Monday marked the first time the 50-year-old has spoken since pleading not guilty to all charges in May last year.

She served meals of beef Wellington, mashed potato and green beans at her home in the rural town of Leongartha on July 29, 2023. All four guests were hospitalized the next day with poisoning from death cap mushrooms, also known as amanita phalloides, that were added to the beef and pastry dish. Ian Wilkinson survived after a liver transplant.

Under questioning from Mandy, Patterson revealed personal battles with low self-esteem, shifting spirituality, the complicated birth of her son and growing distance from her estranged husband’s family in recent years.

“I had felt for some months that my relationship with the wider Patterson family, and particularly Don and Gail, perhaps had a bit more distance or space put between us,” Patterson said. “We saw each other less.”

Patterson is due back on the witness stand Tuesday as the trial continues.

The prosecution completed the presentation of its evidence to a jury of 14 people earlier on Monday afternoon.