Erin Patterson's conviction for the deaths by poisoning of her estranged husband's relatives has prompted fevered speculation across Australia about her motive.

Australian woman Erin Patterson has been found guilty of murdering three of her relatives and attempting to murder a fourth by serving them a meal laced with deadly death-cap mushrooms. The meal, a beef Wellington served at her home in Leongatha,

After hearing nine weeks of evidence, a jury has found Erin Patterson, 50, guilty of murdering three relatives and attempting to kill another.