During the Erin Patterson murder trial, prosecutor Nanette Rogers, SC, argued that the accused had lied to multiple people and changed her story about sourcing mushrooms. Dr. Camille Truong from Royal Botanic Gardens Victoria testified that death cap mushrooms are unlikely to be sold in stores as they only grow in the wild. Rogers also mentioned mycologist Dr. Tom May's evidence that death cap mushrooms do not grow in China, ruling out the possibility of them being imported by an Asian grocery store.

Rogers pointed out that no one else fell ill, suggesting that if the mushrooms were store-bought, there would have been more cases of poisoning. She also highlighted the discovery of remnants of death cap mushrooms in Patterson's dehydrator, dismissing the defense's claim that her actions were due to panic.

The prosecutor emphasized that Patterson's claim of putting Asian store-bought mushrooms in the dehydrator was a lie she repeated to various medical professionals. Despite knowing the truth about her in-laws' condition, Patterson allegedly withheld information from her sister-in-law, Tanya Patterson.

The court adjourned for the day, with Rogers set to continue her closing argument to the jury the following day.