Erin Patterson hosted a family lunch for her former in-laws Don and Gail Patterson, as well as Gail’s sister Heather Wilkinson and her husband Ian Wilkinson, on July 29 in her home in Leongatha, a small town in Victoria’s South Gippsland region.
Don, Gail and Heather all died a week later, while Ian, a pastor at Korumburra Baptist Church, is fighting for life in hospital and awaiting a liver transplant.
The photos of the victims have been been provided with the approval of the respective families.
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“I’m not one for over exaggeration, but these are seriously dangerous things,” he said.
Erin, 48, has been questioned and released without charge by detectives from the homicide squad.