Judge says Patterson showed no remorse after serving her in-laws a meal of Beef Wellington laced with poisonous mushrooms.

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An Australian judge has sentenced a woman convicted of killing three of her estranged husband’s relatives with toxic mushrooms to life in prison, with a non-parole period of 33 years.

The sentence on Monday came after a jury found Erin Patterson guilty of killing her mother-in-law and father-in-law, Gail and Donald Patterson, and Gail’s sister, Heather Wilkinson, by serving them a lunch of Beef Wellington laced with death cap mushrooms.

The 50-year-old was also convicted of attempting to murder Wilkinson’s husband, Ian, who spent weeks in a hospital.