In a Parramatta Bail Court hearing, his lawyer did not apply for bail on his behalf and it was formally refused. Court papers revealed Mr Moananu had a previous offence for unlicensed driving. The matter will return to court on Thursday. Chief Inspector Phil Brooks described the crash, and its devastating consequences, as a "life changing event". "You really can't comprehend it, a situation like this, where a young mother has not only lost her life but also the lives of her twin babies. It's something I haven't seen in my time," he said.

The crash occurred just after 7.30pm on Friday on Northern Road, near Glenmore Parkway at Orchard Hills. Mr Moananu was allegedly driving south along the road, while the Hoangs' car was travelling north when their vehicles collided. Loading The young couple had married only months before the crash, and Ms Hoang was heavily pregnant. She was in the back seat of the Nissan, and died at the roadside. The 17-year-old driver of the Nissan Tiida was also killed. Mr Hoang, 25, who was in the front seat, suffered head injuries and remains in a critical but stable condition in Westmead Hospital.

Mr Moananu suffered limb injuries, a pelvic injury and a head injury. Drivers in two other vehicles were forced to take evasive action to avoid the crash. One of those drivers, an 18-year-old man in a Holden utility, sustained minor facial injuries. The other driver, a 23-year-old woman in a Toyota Corolla, was uninjured. A family member of the Hoangs, who did not wish to be named, told the Herald Mr Hoang would be utterly devastated when he awoke from his induced coma to the news his young wife and unborn children were dead. “Bronko is one young fine man, brother, son, husband, and father-to-be who puts his family first before anything else," the family member said. "I'm still traumatised at the fact that he's lost four of his most dearest loved ones [including his] pregnant wife with twins ... They are the people who made him be the person he is today. Without them, I don't know what he'll do.

“I just hope he wakes up soon just so I can tell him that he is not alone and that the rest of his family and loved ones are here to support him.” The couple married recently after meeting and falling in love years ago at the Western Sydney University Taekwondo club. Vice-president Hansel Rebello said Mr Hoang, who had recently started a new job in the disability sector, had an "infectiously vibrant outlook to life". "Katherine was a beautiful gentle soul who always had a smile on her face," Mr Rebello posted online. "Pull through Bronko, you have a lot of mates waiting for you."

One of Mrs Hoang's university friends said people were "devastated and paralysed" by her death. "Katherine, who liked being called Kate, was a smart, brilliant, funny, kind, loving friend who never had a bad word to say about anyone," Tom Cross told AAP. "Hearing of her passing along with two unborn twins is a senseless loss beyond words." Rishad Akbary said words couldn't describe the pain he was in. "All my condolences to Katherine and Bronko's family, I can't even imagine what they are going through," he posted online.

With Michaela Whitbourn, AAP