Sydney, Aug 5 - A nine-year-old girl walked in on her stepfather while he was strangling her mother who hailed from India, a court was told here. The man, who had met his wife in an Internet chat room and didn't want her to travel to India to donate a kidney for her sick mother, then killed his step-daughter in June last year.

The bodies of the woman, an Indian social worker, and her daughter were found by hikers at the base of Echo Point in New South Wales.

The 43-year-old man, who met his wife in an Internet chat room before she moved to Australia, reported them missing a month before their remains were discovered.

He later confessed to the murders, telling police he killed them at their Blacktown home and then drove their bodies in the boot of his car to the Blue Mountains, The Daily Telegraph reported Wednesday.

He said he told two family members who were with him to go for a walk and while they were gone he pushed the bodies off a cliff.

In his Supreme Court sentencing hearing, the man showed no emotion as a victim's impact statement was read on behalf of his wife's sister.

The court heard the woman had moved to Sydney with her daughter after meeting the man online.