Erin Patterson allegedly served deadly mushrooms to her in-laws due to accusation of eating from a different colored plate.

Erin Patterson is facing charges for allegedly serving poisonous beef Wellington to her in-laws, as her trial commences in Melbourne. The motive behind inviting her former relatives over for this deadly meal has now come to light in court.

The accused, Patterson, who is 50 years old, stands accused of causing the deaths of her ex in-laws, Don and Gail Patterson, as well as Gail’s sister, Heather Wilkinson. These tragic events unfolded during a lunch at Patterson’s residence in Leongatha on July 29, 2023, where death cap mushrooms were found in the dish.

Pastor Ian Wilkinson was the only one to survive the lunch, with an attempted murder charge related to his alleged poisoning also in play.

Appearing at the Supreme Court of Victoria in the Latrobe Valley, located 155km east of Melbourne, Patterson sat in a blue and white striped shirt during the trial proceedings on Wednesday. The circumstances surrounding the alleged poisoning are being scrutinized in the courtroom.

The jury has already heard three attempted murder charges relating to her estranged husband Simon Patterson were withdrawn last week. 

She has pleaded not guilty to three counts of murder and one of attempted murder.  

In opening the trial, Crown prosecutor Dr Nanette Rogers told the jury Patterson had invited everyone over to ask them how she ought to tell her children she had ovarian cancer. 

Prosecutors said that Patterson served beef wellington – and ate from a different plate to the others, distinguishing her meal from those alleged to have been poisoned.

There were four large grey dinner plates on the table, while Patterson ate from a smaller, tan orange dish, according to Mr Wilkinson, who became sick but survived.

Appearing teary-eyed from her position at the back of the court, Patterson listened intently as the allegations were aired before the jury of 15. 

The jury heard Patterson had been keeping Simon’s parents informed about her illness in the weeks leading up to the lunch.  

Erin Patterson has heard the full extent of the allegations against her in court

A court sketch of Erin Patterson from earlier this week

The court heard Patterson had mentioned to Gail she required tests at hospital.  

On June 28, Gail texted Patterson and asked how those tests had gone. 

The next day Patterson replied they had ‘went okay’ but she required a biopsy and an MRI the following week. 

On July 6,  Gail texted and asked again how Patterson was progressing, the court heard. 

Patterson allegedly told her mother-in-law ‘there was a bit to digest’ and wanted to talk in person. 

On July 16, during a church service, Patterson allegedly asked her in-laws over for lunch, the court heard. 

She also asked Simon to attend, despite the couple’s relationship being on the decline. 

The court heard the purpose of the lunch was to discuss ‘medical issues’ and how ‘to break it to the kids’. 

Simon Patterson will give evidence at the trial 

Patterson was insistent she did not want the kids to attend and Simon agreed to attend the lunch. 

The court heard each of Patterson’s guests were confused about the invitation and wondered what the purpose was. 

Simon pulled out at last minute because he ‘felt uncomfortable’ – a move which allegedly annoyed his estranged wife. 

Patterson texted ‘she was disappointed’ as she’d put in a lot of effort for the ‘special meal’. 

The court heard Patterson told Simon it was important everyone attended. 

On the day of the lunch, Simon’s in-laws arrived at the Patterson household together. 

After some small talk, lunch was served. 

Patterson plated the meal of beef Wellingtons, mash and beans. 

The Leongatha home where the deadly lunch took place 

Patterson’s legal team ran the gauntlet of media as they entered the court on Wednesday. Above is her barrister Colin Mandy SC

They were served as individual pastries on grey plates, but Patterson’s was on a smaller coloured plate. 

The court heard Gail ate only half of her portion and Don ate the rest. 

Dessert consisted of a fruit platter and a cake brought by her guests. 

After lunch Patterson told them she had cancer and asked how to tell the kids. 

The court heard they prayed as a group for Erin’s ‘health and wisdom’ before leaving together about 3pm

They became violently ill hours later.  

On Tuesday, Justice Beale began his opening address to the jury, who had been meticulously selected from a jury pool of 120 people.

While 15 jurors are taking part in the full trial, which is expected to take anywhere up to six weeks, only 12 will decide Patterson’s fate.

Heather and Ian Wilkinson in happier times. Mr Wilkinson survived the deadly lunch

Don and Gail Patterson both died after the lunch

A ballot will be held before the jury retires to consider its verdict, with three to be ejected without any input.

The additional jurors are selected as a back-up should any juror fall ill or need to be discharged during the lengthy trial process.

As the trial gets underway, more than 50 reporters from across the globe have descended on Morwell which is located about 60km from Patterson’s home town in Leongatha, in Victoria’s Gippsland region.

Almost all available accommodation within 13km of Morwell – as far away as Traralgon – has now been snapped up by media organisations covering the trial.

True crime podcasters and documentary crews have also converged on Morwell, which is located among lush green fields and has a population of under 15,000.

Morwell is known for its role as a major energy production centre for Victoria, as the centre of a major coal mining and fossil-fuel power generation industry.

Daily Mail Australia and a team of journalists will be on the ground in Morwell covering every minute of the case, with stories to appear daily online.

A podcast spearheaded by a top team of international Daily Mail journalists will accompany Daily Mail Australia’s coverage.