Husband guilty of Sydney wife's murder

A man has been found guilty of murdering his wife, whose body was discovered by her young daughter lying in a pool of blood in their Sydney home.

Tony Thao Do had pleaded not guilty to murdering his 54-year-old wife Kim Lien Huynh, who died in September 2012 from a combination of neck compression and sharp and blunt force injuries to her head.

Crown prosecutor Nicole Noman SC said Do had given two versions of the day of September 13.

First he claimed he hadn't known of the death until he got a call from her daughter.

Then later, he told police he had discovered his wife on the floor and thinking she had "fainted or fallen", tried to pick her up.

Scared, he washed his hands and feet in the bathroom sink and then walked back to their Sydney shop and hid under a blanket.

On Wednesday, the jury dismissed those claims and found him guilty of murder.

Ms Huynh's daughter Aminda told the court of how she had returned to their Cabramatta home in Sydney's south-west about 8.30pm on September 13.

She began cooking dinner, texting friends and watching television.

It wasn't until hours later when she turned on the light in the home's stairway to let the dogs out that she could see into the front room for the first time.

The 22-year-old cried as the Triple-0 call, which she made shortly after the discovery, was played to the court.

As her voice becomes increasingly high-pitched, she tells the operator, "I think she has been here for a while and I haven't noticed."

Aminda told the court that when she eventually touched her mother she was "freezing cold."

She said when Do - who had moved from America - first came to live with the family in September 2011 it was clear that he and her mother cared for each other.

"They were always together," she said.

But four months before her death, they were no longer sleeping in the same room and her mother began locking her bedroom door.

Defence barrister Craig Smith SC said DNA evidence from the Cabramatta home where Ms Huynh's daughter found her dead mother supported what Do had told police.

"He didn't kill Kim. He loved Kim," Mr Smith had said.

He further argued that Do didn't have a motive and was so distraught by his wife's death he tried to kill himself.

"Why did you have to die, my dear," Do wrote in a message to Ms Huynh's spirit, Mr Smith said.

"Appear in the children's dreams and let them know."

Do will return to court for sentencing proceedings next month.