A 16-year-old boy has been charged with one count of murder and one count of attempting to unlawfully kill after his 35-year-old mother was found dead and his 12-year-old sister was stabbed at the family's home in Bentley, in Perth's south-east, on Tuesday 21 July 2026.

WA Police attended the residence on Tuesday morning following reports of the incident. Officers found the 35-year-old mother deceased at the scene. The 12-year-old girl had sustained stab wounds and fled the house to a nearby highway to seek help. Bystanders provided life-saving first aid to the girl before she was transported by ambulance to Perth Children's Hospital, where she remains in a critical but stable condition The Guardian.

The boy was due to appear before the Perth Children's Court on Wednesday 22 July 2026. WA Police Homicide Squad detectives are investigating the circumstances surrounding the incident WA Police.

Authorities are treating the case as a suspected family violence homicide. Multiple outlets, including ABC News, 7News, and Nine News, reported the domestic violence classification, reflecting the intra-familial nature of the alleged offending ABC News.

WA Police acting inspector Jessica Securo said the incident had shocked the community and expressed thoughts for the family, particularly the 12-year-old girl The Guardian.

The charge of "attempting to unlawfully kill" under Western Australian law is distinct from a standard attempted murder charge and carries its own legislative framework. Its application in this case signals that prosecutors have assessed the alleged offending against the sister as meeting the threshold for that specific offence.

That the accused is a minor places the proceedings within the jurisdiction of the Perth Children's Court, where sentencing principles emphasise rehabilitation over retribution. Western Australia's youth justice framework requires that the identity of the 16-year-old not be published, a standard suppression that applies to defendants under 18. The case will proceed through a court system designed to balance community safety, the gravity of the alleged conduct, and the developmental considerations specific to adolescent offenders.

The role of bystanders in administering first aid to the 12-year-old girl before paramedics arrived merits attention. Their intervention may have been a material factor in the girl surviving her injuries and reaching hospital in a condition described as critical but stable. The fact that the girl was able to flee the residence to a nearby highway indicates she had the physical capacity to seek help despite her injuries, and that the incident unfolded in a residential area with sufficient public access for bystanders to respond.

The classification of the incident as a family violence homicide situates it within a broader category of offending that Australian law enforcement and policymakers have identified as a persistent and serious concern. Domestic violence homicides, by definition, involve perpetrators and victims who are related or in domestic relationships, and they typically occur within the home. In this case, both the deceased and the injured victim were immediate family members of the accused.

With the Homicide Squad investigation ongoing and the accused now before the court, the case will move through the WA criminal justice process. The 12-year-old girl's condition remains the most immediate concern for medical staff at Perth Children's Hospital, and her recovery trajectory will likely influence the scope of any further charges or evidence presented as the matter proceeds.