Dr. Chris Webster instantly suspected Erin Patterson was a killer when she appeared at Leongatha Hospital claiming gastro symptoms after serving a beef Wellington lunch. He became certain when Patterson claimed the mushrooms came from Woolworths supermarket, an implausible source for toxic death caps, and showed no concern for her dying relatives nearby. After Patterson left against medical advice, Webster alerted police about potential fatal poisoning, with his call recording later played at her trial. Patterson was convicted of murdering three in-laws and attempting to murder pastor Ian Wilkinson by lacing their meal with deadly mushrooms in 2023. Webster described relief at the verdict, calling Patterson ‘the definition of evil’ and finding closure in seeing Wilkinson recovered.