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Key evidence shown to jury during marathon trial of toxic mushroom cook Erin Patterson

And there is one question that Erin Patterson may never answer.

Key witness lifts lid on mushroom murderer Erin Patterson

Key evidence shown to jury during marathon trial of toxic mushroom cook Erin Patterson

And there is one question that Erin Patterson may never answer.

Evidence shown in court during the marathon trial of toxic mushroom cook Erin Patterson has been released for the world to see.

Patterson, a 50-year-old mother of two, was on Monday convicted by a Supreme Court jury of the three poisoning murders of her former in-laws Don and Gail Patterson, both 70, and Gail’s sister Heather Wilkinson, 66.

WATCH THE VIDEO ABOVE: Key witness lifts lid on mushroom murderer Erin Patterson.

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She was also found guilty of the attempted murder of Wilkinson’s husband, Ian, 68.

Patterson’s four victims were served beef wellington parcels laced with death cap mushrooms during a lunch at her Leongatha home in regional Victoria in July, 2023.

The trial garnered international attention and now, with the verdict delivered, dozens of exhibits shown during the court proceedings have been released.

They include the receipts for a food dehydrator Patterson initially claimed she had never owned, and CCTV of her dumping the appliance in the days after the deadly lunch.

Samples of death caps were found on the trays after police recovered it.

Testing revealed the presence of death cap mushrooms in a beef welling.
Testing revealed the presence of death cap mushrooms in a beef welling. Credit: Victorian Supreme Court
Erin Patterson had served the beef wellington on different plates.
Erin Patterson had served the beef wellington on different plates. Credit: Victorian Supreme Court
The table where Patterson is accused of serving the deadly lunch.
The table where Patterson is accused of serving the deadly lunch. Credit: Victorian Supreme Court
Mushroom killer Erin Patterson spent the first few night behind bars as a convicted killer on Monday.
Mushroom killer Erin Patterson spent the first few night behind bars as a convicted killer on Monday. Credit: Martin Keep/AFP

There are pictures too of the dining table where Patterson is accused of serving the deadly meal.

Authorities recovered the lunch leftovers, taking pictures and carrying out tests to confirm their suspicion that toxic mushrooms were slowly killing the four guests.

Patterson also pretended to fall ill but panicked and discharged herself from hospital, against medical advice, just minutes after arriving.

Images of her at the hospital revealed a phone in a pink case. Police say they never recovered the device.

Prosecutors said this was Patterson’s primary phone in 2023 and claimed she had used it to find death cap mushrooms online.

CCTV of Patterson dumping the dehydrator.
CCTV of Patterson dumping the dehydrator. Credit: Victorian Supreme Court
Erin Patterson pictured in hospital with a phone in a pink case. The device was never recovered.
Erin Patterson pictured in hospital with a phone in a pink case. The device was never recovered. Credit: Victorian Supreme Court
Don and Gail Patterson, pictured left, and Ian and Heather Wilkinson.
Don and Gail Patterson, pictured left, and Ian and Heather Wilkinson. Credit: 7NEWS

Patterson is now staring down the possibility of spending the rest of her life behind bars.

Her legal team, who had argued the case against her was flawed and said she had strong relationships with her former in-laws, have not revealed if they will appeal.

The will have 28 days from the date she is sentenced to do so.

Patterson is set to go down as one of Australia’s most infamous killers.

“Ultimately unless Erin Patterson chooses to speak or there is some sort of official evaluation by a psychologist or psychiatrist, she is still maintaining her innocence, so we don’t really have a motive,” criminologist Xanthe Mallett told 7NEWS.

“That’s what makes all of this so inexplicable. How could a tragedy on this scale happen when we don’t have a clear motive?

“I think that’s the question that will remain. I’m hoping at some point (that will be answered) but I’m not expecting Erin to tell us.”

The pre-sentence process will begin later this year.

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