Erin Patterson's sprawling Leongatha home where the fatal mushroom lunch was served is now only an eerie reminder of a murder ...

In a matter of minutes, a tension built over weeks of legal arguments and disputed versions of what happened the day Erin Patterson hosted her in-laws for lunch was resolved.

Erin Patterson remained composed as a jury decided whether a poisoned beef Wellington lunch she cooked was a deliberate and callous act of murder, or a tragic accident.

Criminal experts have described mushroom killer Erin Patterson as a ‘formidable witness’ who ‘knew what she was doing’.