A NSW man has been found guilty of his pregnant partner's murder, which led to the death of their unborn child.
Joshua Homann pleaded not guilty to murdering Kirralee Paepaerei at their western Sydney townhouse in September 2015.
The expectant mother died of multiple injuries, including at least 28 incisions and stab wounds to her neck and a further 21 stab wounds to her chest.
A jury on Tuesday found Homann guilty in the NSW Supreme Court.
The crown case was that Homann, who had been a drug addict, concocted a false home intruder story to tell police straight after the killing.
Prosecutor Sean Hughes in his opening address suggested Homann had driven to a nearby police station within minutes claiming he had been attacked.
"Someone broke into my house and tried to stab me," Homann allegedly said.
"My partner's at home. You need to make sure she's OK."
A young relative had previously told the court that Ms Paepaerei and Homann were yelling when he left the house earlier in the evening.
After he returned about midnight, the relative, who can't be named for legal reasons, heard a big bang and smashing glass.
Homann's car alarm sounded and the relative went outside to see it take off down the street.
He said he went upstairs to tell Ms Paepaerei and Homann the car had been stolen but found her on the ground.
"I thought it was a joke at first ... I was just telling her to wake up," the relative told the court.
Mr Hughes said Homann told psychiatrists he'd been a heavy ice user and had previously suffered hallucinations.
Defence barrister Peter Lange had stressed Homann wasn't suggesting he didn't cause Ms Paepaerei's death.
The lawyer said the case wasn't about domestic violence or drug use but "the power of mental illness".
A sentence hearing has been set down for May 4.
National domestic violence helpline: 1800 737 732 or 1800RESPECT. In an emergency call triple-0.