A man who stabbed his wife to death in their Sydney home before stuffing her body in a freezer and fleeing overseas will likely be tried for her murder in China, an inquest has heard.

Deputy state coroner Elaine Truscott on Thursday found Chan ‘Vivien’ Chen had been killed by her husband Haoling ‘Andrew’ Luo in late November 2019.

Ms Chen’s body was found after Mr Luo left a message for his boss admitting his wife was dead.

“I was a little mentally abnormal a few days ago and accidentally killed my wife during a fight with her,” he said.

Similarly, Chinese police were informed when Mr Luo turned up at Ms Chen’s family home and told her father that he had killed her.

Mr Luo is in custody in China, where he is expected to be prosecuted for the murder in the absence of an extradition treaty with Australia.

NSW Police found Ms Chen’s body stashed inside a chest freezer in the family’s Pymble apartment on November 26, 2019.

The apartment was covered in blood including on the lounge, the curtains, and carpet in their children’s bedroom.

Mr Luo’s palm print was in blood on the top of the freezer and his DNA under Ms Chen’s nails.

According to messages she sent friends, Ms Chen had asked Mr Luo for a divorce several times, including in the hours before her death on November 24 or 25.

Police were called to the apartment complex just before midnight on November 24 after receiving triple-zero calls reporting raised voices and children screaming, but the officers left after about half an hour when they did not hear any screams.

It is unknown if Ms Chen was already dead or died later that morning, Ms Truscott said.

The next morning, Mr Luo purchased a freezer before fleeing the country with his children.

In the year leading up to Ms Chen’s death, Mr Luo displayed increasingly erratic behaviour, Ms Truscott said.

He was overheard insisting his phone was tapped and told friends people were trying to hurt him.

Ms Chen told a workmate Mr Luo had at one point believed she was having an affair and trying to kill him, and demanded to inspect her phone.

Another time, Ms Chen told a friend the family had been forced to sleep in a corner of the living room while Mr Luo guarded them with a kitchen knife.

Mr Luo was at one point told by a Chinese doctor he had schizophrenia, and given medication which improved his behaviour until he stopped taking it on an Australian GP’s advice.

1800 RESPECT (1800 737 732)

Lifeline 131 114

-AAP