Erin Patterson found guilty of poisoning her estranged husband's family with death cap mushrooms in 2022.

Erin Patterson, 50, was found guilty of three murders and one attempted murder for poisoning her estranged husband Simon's family with a death cap mushroom-laced beef Wellington in 2022. Simon had reported four previous poisoning attempts by Patterson since 2021 and had warned his father, sister, and cousin about her actions. Despite these warnings, Simon's parents and aunt consumed the meal and died. Evidence showed Patterson had accessed a death cap mushroom sighting online before the incident.