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

Erin Patterson, a 50-year-old mother of two, was found guilty of murdering three relatives and attempting to kill a fourth by feeding them a lunch laced with death cap mushrooms at her home in 2023.

It found Ms Patterson guilty on three counts of murder and one of attempted murder. The case has gripped Australia with its compelling mixture of tortured family drama and, the jury has decided, elaborate murder plot,