Details surrounding the deadly Australian family lunch have been slim as police continue to investigate the "complex" case, but it's now been revealed where the mushrooms came from.
It all unfolded on July 29, when mother of two, 48-year-old Erin Patterson hosted a family lunch with her former in-laws, Gail Patterson and Don Patterson, as well as Gail's sister, Heather Wilkinson, and her husband Ian at her home, in Victoria's Leongatha.
Tragically on Friday, Heather, 66 died in hospital. Her husband, 68-year-old Baptist Church pastor Ian Wilkinson, continues to fight for his life in hospital. Heather's sister Gail, 70, and brother-in-law Don, 70 also died in hospital.
Erin, who police have confirmed is a suspect in their investigation - has been thrust into the public spotlight since the news of the lethal lunch broke.
Police executed a search warrant at the Leongatha home on the weekend, where Erin was interviewed and released pending further inquiries.
From the outset, Homicide Squad Detective Inspector Dean Thomas described the case as "complex" and said it "could be very innocent".
Det Insp Thomas has previously said police are "presuming at this point" the mushrooms caused the deaths, and up until now have been unsure where they were sourced.
According to 7News Erin told police during her interview she purchased the mushrooms from a local shop in the Leongatha area.
Though it's reported there are no recalls or warnings given for locally-bought produce.
The bombshell interview revelation comes after Erin told media on Tuesday she is feeling "sh**house".
Local media had been staking out Erin's home over the course of this week, pushing her for answers - one of which was where she got the mushrooms from, though she wouldn't reveal any details.
Instead, Erin told media to get off her property.
"What happened is devastating and I'm grieving too and you guys don't have any respect for that," she said on Tuesday.
On Monday Erin told media "I didn't do anything, I love them. I just can't fathom what has happened".
"I can't believe that this has happened, and I am so sorry that they have lost their lives."
On Wednesday, a friend of Erin's ex-husband Simon Patterson - claimed Simon was supposed to attend the fatal lunch too, but "pulled out last minute".
Simon had just recovered after months of rehabilitation from a mystery stomach illness that had him fighting for his life in hospital. He spent 21 days in intensive care after collapsing at his home in May 2022.
The friend of Simon's told the Daily Mail that Erin was wanting to retain the family home, which she had reportedly been living in with the couple's children since they split.
It's also been reported police are carrying out forensic testing on a dehydrator that was found at a nearby rubbish dump.
The Herald Sun reports one theory being investigated by police is whether a dehydrator was used to preserve the mushrooms - before it was binned the day after they were eaten.
