The statements, obtained by Fairfax Media and contained within The Red Zone, a damning new report on college culture, allege St Paul’s failed to properly investigate the circumstances leading up to Stuart’s death including being tormented over his role in the lock-out laws and alcohol being forced down his throat. 

The Kellys have told police they want a coronial inquest held into Stuart's death in July 2016 and the events that took place at St Paul's college while he was in their care. They believe he may have been assaulted,  possibly sexually, during his short stay at the college.

University of Sydney vice-chancellor Michael Spence said the university would support a coronial inquest into Stuart's death.

"We would do anything in our power to help the Kelly family find answers," he said.

Stuart’s father, Ralph, said he was speaking out to prepare people “for what could be a terrible time'', as thousands of university students begin orientation week on Monday. 

"We were oblivious to what happens in the colleges when we sent Stuart there," he said. 

The Red Zone gives graphic new details of university traditions including: male students ejaculating into the shampoo containers of female colleagues, first-year students being doused in rotting fish and forced to drink their own vomit in drinking games.

It also highlights endemic levels of sexual harassment at Australian colleges including male students bashing down the doors of female classmates and posting the underwear of those they had slept with on Facebook in a practice known as "the purge". 

Macquarie University Professor Catherine Lumby said the report made for "sickening reading."

"I had to put the document to one side at times to process the full extent of abuse and assault that permeates our college and residential halls."

End Rape on Campus Australia has joined with the Kelly family to call for hazing to be criminalised.

"Universities are failing to provide a safe learning environment for students," said EROC ambassador and The Red Zone's co-author Nina Funnell.

In a harrowing new police statement that covers the final months of Stuart's life, his mother Kathryn details Stuart's spiral into depression after his first night at college.

"I believe that he was assaulted, possibly sexually – this was something Stuart would never have recovered from," she said.

On the night of the alleged hazing, the Kellys were told excessive amounts of alcohol would not be tolerated and then invited by college staff to set up a bar tab for their kids.

They were then asked to sign a disclaimer that allowed students to take part in activities during O-week.

"They held him down and forced alcohol down his throat," said Mrs Kelly, in what she described as "a horrific drunken initiation". 

"He asked them to stop but they went ahead and taunted him about the lock-out laws." 

She said Stuart was tough and knew that kids drank alcohol, used drugs, had sex and could be violent.

"He lived at boarding school for six years," she said. "It would take more than having alcohol forced upon him to spiral into depression."

The Kellys blame campaigns by Keep Sydney Open and a viral anti-lock-out law article for a groundswell of negative press that put a target on Stuart's head from the moment he entered the college grounds.

The lock-out laws were implemented by the NSW government after the death of Stuart's brother Thomas in a one-punch attack in Kings Cross in 2012 and Daniel Christie in 2013.

“The bitter hatred and bile was disturbing,” said Mr Kelly. 

The next time the Kellys saw their son after dropping him at the college he had always dreamed of attending he was sitting in a gutter outside Royal Prince Alfred Hospital, his hands cradling his head, crying. 

“The last time we knew of him crying was when he was in a room at St Vincent's Hospital while Ralph, Madeline [Stuart's sister] and I were with Tom and the doctors, having [Tom's] life support removed," she said.

Less than six months later, Stuart would be found dead in his car at Mona Vale.

The rugby mad teenager – widely regarded by his peers as a natural leader – had gone to the gym that day. The last thing he had looked at on his computer were colleges in the United Kingdom.

 “I felt my world crumble in front of me," said Mr Kelly.

"The feeling I was going through I cannot begin to explain.

"I told Madeline that her brother was dead. She collapsed on the pavement. I started to wonder again. Why had our family been destroyed for the second time?'' Mr Kelly said.

“They didn't get to have a 21st [Madeline did – but didn't feel that a party was worth having] didn't get to love the partners that came into our family, see them engaged, marry or care for their own kids," added Mrs Kelly. 

Mr Kelly said he was told there would be no further investigation into his son’s death by the college,  sparking his call for the coronial inquiry.

"I was called by the college and told that as far as they were concerned it was case closed," he said. "I was staggered."

Geoff Lovell, the deputy head of St Paul's,  confirmed the college had hired external lawyers to interview students and staff over Stuart's experience months before he died, but found the allegations were not substantiated.

He said breaches of respect and dignity "would not be tolerated" and that students should look forward to the new year and "participating in the balanced program of activities''.

Support is available for those who may be distressed by phoning Lifeline 13 11 14; Mensline 1300 789 978; Kids Helpline 1800 551 800; beyondblue 1300 224 636.

smh.com.au