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.

So convinced she was trying to kill him, Erin Patterson's husband kept secret records of what she'd fed him and when. Find out more here.