Erin Patterson's ex-husband Simon Patterson could be penning a book to share what it was like being married to the convicted killer

Authorities in Australia have said Erin Patterson attempted to poison her husband on multiple occasions before serving a deadly mushroom meal that killed three people.

The estranged husband of a woman convicted of killing three people​ with a meal laced with deadly mushrooms suspected his wife had been poisoning him before the fatal meal, an Australian court has heard.