Lilie James’ parents have delivered an impassioned warning at the inquest into her brutal murder about the dangers of failing to teach men to respect women.

The young sports coach was bludgeoned to death by her ex-boyfriend Paul Thijssen, who bashed her over the head with a hammer at least 25 times in a bathroom at St Andrew’s Cathedral School in Sydney on October 25, 2023.

On the final day of the inquest on Thursday, James’ devastated parents Peta and Jamie stressed the need for cultural change to prevent more women being killed.

“As parents, if we are not teaching our sons how to respect a woman’s opinions and choices and accept rejection, we could be setting our daughters up for failure,” Mrs James said through tears.

“In our case, a moment in time we will never recover from.”

They mourned the loss of their beautiful, independent and adventurous daughter who had a wicked sense of humour and a smile that could light up a room.

“Lilie, sweetpea, I am so sorry we couldn’t protect you from what happened that night,” Mrs James said.

“The guilt that I feel will stay with us forever.”

Coroner Teresa O’Sullivan thanked the James family for their powerful presence throughout the inquest and said she was sure their participation would save lives.

Peta and Jamie James have pleaded for cultural change to prevent more women being killed. Photos: AAP/Supplied

Their tribute came after the release of chilling footage showing Thijssen outside the bathroom moments before killing the 21-year-old.

Out of the camera’s view, he was holding the hammer he later used to beat his ex-girlfriend so badly her body was left unrecognisable.

Hours earlier, the 24-year-old was caught on camera doing a “dry run” of the murder outside the bathroom.

Footage shows him alternating the hammer between each hand as he lunges forward and pushes open the bathroom door.

Thijssen earlier blocked off one of the bathrooms so James would be forced to use the disabled facilities.

Another video released by the court showed Thijssen testing the weight of hammers as he browsed in a Mitre 10 store in the city.

He walks away with one in hand. However, the inquest was told it was not the hammer used to inflict the fatal beating.

James ended their casual two-month relationship five days before she was killed in the bathroom.

Domestic violence expert Anna Butler said patterns of coercive control were evident throughout their short relationship.

When James had previously tried to break up with Thijssen, he used degrading, derogatory, and gaslighting language to erode her autonomy.

He escalated his emotionally abusive behaviour when he shared an intimate image of the 21-year-old with friends and stalked her when she said she wanted to split up.

Butler said Thijssen felt growing anger and resentment that he no longer controlled their status, so he used a cache of well-honed manipulative tactics to try to regain control.

Forensic psychologist Katie Seidler said Thijssen had no history of aggression and no obvious warning signs or indicators of violence to predict the tragic outcome.

She theorised Thijssen committed the murder because he was terrified the break-up would unravel his facade of perfection.

He likely had a fragile sense of self and saw himself as inadequate and unworthy, which led him to lie to create a flawless public image, Seidler said.

Thijssen was later found dead in Sydney’s eastern suburbs.

In her closing remarks, counsel assisting the coroner Jennifer Single SC agreed there was no prior indication he was going to take Ms James’ life and end his own.

Ms O’Sullivan will hand down her findings at a later date.

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-AAP