Erin Patterson, 50, is charged with three murders — of the parents and aunt of her estranged husband. She is also charged with one attempted murder. Patterson has pleaded not guilty to all counts, with her defense saying the fatal beef-and-pastry meal, laced with death cap mushrooms, was the result of "a terrible accident."

Erin Patterson, 50, is charged with three murders -- of the parents and aunt of her estranged husband -- and one attempted murder.