A Sydney woman will stand trial on charges of murdering her Scientologist father and teenage sister.
The 25-year-old, who cannot be named, is facing two counts of murder and a third of maliciously inflicting grievous bodily harm with intent to murder over a frenzied stabbing at her southwestern Sydney home in July last year.
It is alleged that the woman, who has been diagnosed with schizo-affective disorder, fatally stabbed her 53-year-old father and 15-year-old sister in a psychotic rage at the family's Revesby home.
She is also accused of critically wounding her 52-year-old mother during the attack.
The woman's parents had allegedly denied her access to psychiatric medication due to their Scientology beliefs.
Burwood Local Court Magistrate Jane Mottley today committed her to stand trial in the New South Wales Supreme Court.
It is understood she will mount a mental illness defence.