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Published : 19 May 2026, 08:49 PM
Australian investigators have suggested that a widely publicised murder-suicide case in Western Australia influenced a triple domestic homicide in Sydney that left a woman and her two sons dead.
Police found the bodies of a 46-year-old woman and her two sons, aged 12 and 4, inside a home in Campbelltown in south-west Sydney, all three suffering fatal injuries.
A 47-year-old man, identified as the husband and father of the victims, was arrested at the scene.
Court documents cited by Australian media allege the Bangladeshi-born suspect, who migrated to Australia with his family about a decade ago, had planned the killings over several months.
Investigators are examining whether the suspect had become fixated on an earlier tragedy in Perth involving the deaths of two autistic teenage brothers and their parents in an apparent murder-suicide.
Police said the mother was the sole income earner of the family, while the father acted as the primary caregiver for the couple’s two sons, both of whom had severe autism and intellectual disabilities.
Defence lawyer Jawad Hosain said outside Campbelltown Local Court that his client was “profoundly distressed”.
The suspect did not seek bail, which was formally denied.
Authorities said psychiatric assessments are expected, although police noted there was no known history of mental health treatment or domestic violence complaints involving him.
The case has been adjourned until mid-July, when the suspect is expected to appear via audio-visual link.
Investigators are continuing forensic examinations at the family home.
The suspect, who was not known to police and did not have a criminal history, was charged with three counts of domestic violence murder.
According to court documents, the man told police that his sons suffered from severe autism minutes after his arrest.
He also complained of depression since being diagnosed with cancer in 2024, but he had been in remission since January 2025.
Acting Superintendent Michael Moroney said first responders faced “a particularly violent crime scene”.
Detectives located several items inside the house “which would be of interest in regard to the injuries sustained”, Moroney said.
However, there was no firearm inside the home.
