A 50-year-old man has pleaded guilty to unlawfully killing his two-month-old daughter at a home in Perth’s south. Narelle Storm Pears was malnourished and had multiple injuries, including skull and rib fractures, when she was found at a house in St James in January, the court has previously heard.

Tony James Paraha pleaded guilty in Stirling Gardens Magistrates Court on Wednesday and will appear in the WA Supreme Court on January 13.

The baby’s mother, 30-year-old Melanie Anne Pears, previously pleaded guilty to manslaughter and will also be sentenced next year.

Pears wiped away tears in April while pleading guilty – via video link from a psychiatric facility – to unlawfully killing Narelle and assaulting a police officer who attended the home.

Defence lawyer Bill Harris said at the time Pears accepted responsibility for the infant’s death.

“Despite her illness at the time, she accepts her omissions were of such a nature as to amount to criminal negligence,” he said.

Mr Harris previously told the court Narelle was born prematurely in November and Pears was discharged from hospital the next day despite clearly being ill and “incapable of looking after herself”.