Killer Paul Thijssen was carefully planning to kill Lilie James with a hammer caught in 'a number of dry runs' on CCTV outside the school bathroom where she died.
An investigation into the death of the 21-year-old Waterpolo coach on the St. Andrew's Cathedral School in Sydney in October 2023 heard that Mrs. James's alienated boyfriend killed her with 'Blunt Force Blows to the Head'.
Jennifer Single described the attack as' Overkill ', the counsel who assisted the investigation, said:' It was not a temporary loss of control. It was premeditated. '
Videos of Thijssen's 'Murder Repetals' in areas outside the bathroom of the school are shown during the study, which was opened on Tuesday.
Thijssen, 24, stalked Mrs. James after having ended their short-five week of romance.
The investigation also investigates the death of Thijssen, who heard the court was a compulsive liar who forged documents and stalked and endangered another girlfriend for Mrs. James.
A young woman identified only because Freya had a relationship with Thijssen who started in March 2021, but ended when he started to stalk her social media accounts and came out of her work and house unannounced.
In December 2021, after his return to Australia from his native Netherlands, Thijssen immediately went to Freya. They went to church and then visited a park, where he hit a tree close to her head.

An investigation into the death of murdered water polo coach Lilie James and her ex-boyfriend started 18 months after their death

Two days after Mrs. James was murdered, the body of 24-year-old hockey coach Paul Thijssen, with whom she had had a short relationship, was found in Vaucluse

Mrs. James, Peta and Jamie's parents are depicted at the NSW study on Tuesday
When asked why he did it, Thijssen said, “Because I can't hit the only thing I want.”
Days later, when Freya was home and came down at 6.25 am, she looked out of a window and saw Thijssen looking anxious, scared and angry in the Laneway.
Freya's father Mark later told Thijssen that he should not have any further contact with his daughter, otherwise they would eliminate an AVO against him.
The research also heard Thijssen's lies about his studies and work.
He told everyone, including his parents, that he studied a master of teaching at Sydney University.
“He was tight with money and blamed it in spending large amounts on university studies. This was nothing true, “Mrs. Single told the court. There was no record that he was studying somewhere.
She also stated the forged documents that Thijssen carried out in his application for a third working holiday, which contained a reference and payslips that claimed to show his work at St. Andrew's.
He pretended to have worked as a 'farm' in Kirrikee, the outdoor education facility of the school in the southern highlands.

Mrs. James was found dead in a gymnasium bathroom on the St. Andrew's Cathedral school in the Sydney CBD on October 25, 2023. Students are depicted outside the school
The visa application was successful, but when he killed Mrs. James, Thijssen no longer had any options because his visa would expire in February 2024 and he would have to leave Australia.
There was no option to apply for a fourth work visa, and his lies about studying for a master of teaching would be exposed because he had not studied and would therefore not graduate.
The police discovered Mrs. James' 'unrecognizable' body in a gymnasium bathroom at school on October 25, 2023. She had suffered a serious head injury.
The couple was agreed to meet each other to change possessions that evening after Mrs. James had broken down their relationship.
Earlier, her father had received an SMS from Mrs James' phone, who asked to be picked up from the school later that evening.
After her body was discovered, murder detectives launched an immediate search for Thijssen along the coastline of Diamond Bay, Vaucluse and upper cliffs.
The backpack of Thijssen was found in a waste bin in a street overlooking the bay at around 5 p.m. that evening.
A hammer was discovered in the backpack.

A white coffin with Mrs. James' body was worn on Friday, November 17, 2023 to the Danebed Anglican School for Girls
The police picked up Thijssen's body around noon on Friday 27 October after a trader saw it in rocks under the cliffs.
The investigation is also expected to consider whether Thijssen's death had been inflicted and whether it could have been prevented.
It is probably also the role of technology in modern relationships, compulsive control and the perception of the audience about what that means and what it looks like.
Daily Mail Australia previously revealed that the cathedral school of St. Andrew would not play an official role as a 'interested party' at the Coronial Inquiry.
Director Dr. Julie McGonigle referred to the upcoming study in one Head of the school newsletter at the end of last year.
Dr. McGonigle wrote that 'at this stage the state coroner does not consider as St. Andrew's Cathedral School as a sufficient interest in this case to be considered an interested party, in accordance with the Coroners Act'.
The school confirmed at the time of the death of Mrs. James, it knew about the relationship after both employees of her sports department had made them aware of this.
Relations were allowed between employees, on condition that they followed the protocol and informed the school.

St Andrews has since demolished the bathroom where Mrs. James's body was found
In the aftermath of the tragedy, the school made plans to create a permanent memory of Mrs. James's life in the form of a monument or prize that celebrated her memory.
The James family said in a statement: 'We were destroyed and deeply saddened by the loss of our beautiful Lilie James.
“She was lively, extroverted and very loved by her friends and family.”
The school broke off the bathroom where Mrs. James's body was found.
Since then it has made a memorial made of a framed wreath made of the ribbons attached to the mountains of flowers that have been left outside the school.
On the first birthday of Mrs. James' death, students were given black bracelets to wear in her memory at sporting events.