Woman found guilty of killing her in-laws ‘had collection of mushroom books’

Erin Patterson served a dish which caused the deaths of Gail and Don Patterson, and Heather Wilkinson (Picture: Collect / Seven)

A woman who served a beef wellington which killed three people kept a collection of books on deadly mushrooms in her home.

Erin Patterson, who was found guilty of the deaths of three people, kept the collection of books, which included recipes featuring potentially dangerous fungi, Daily Mail Australia reported.

The 50-year-old had invited her ex-husband...