Teen Son Suspected in Bentley Mother's Killing, Sister's Stabbing

A 35-year-old mother was killed and her 12-year-old daughter stabbed in an early-morning attack Tuesday at their home in Bentley, Western Australia, with police alleging the woman’s 16-year-old son carried out the assault. The incident, which forced the temporary closure of a major highway, is being investigated as a suspected family violence homicide, according to WA Police Major Crime acting inspector Jessica Securo.

The Attack

Police were called to the residence on Mills Street around 6:15 AM after reports of a stabbing. Inside, they found the mother fatally wounded. The 12-year-old girl had been stabbed but managed to escape the house and run to nearby Albany Highway, where bystanders provided life-saving first aid until emergency services arrived. The girl was rushed to a hospital in serious but stable condition. The teen suspect was arrested at the scene and is known to police; he has not yet been charged.

Investigation Underway

Detectives are examining the family’s history and any previous interactions with authorities to piece together the events leading up to the attack. “This incident will have a significant impact on the family, friends and loved ones of all those involved,” Securo said in a statement. “Our thoughts are with them all, particularly the 12-year-old girl.” First responders were offered counseling due to the confronting nature of the scene. The Albany Highway northbound between Manning Road and Hamilton Street was closed temporarily for evidence collection.

Community Response

The attack has shaken the quiet Bentley neighborhood, where residents described shock at the violence. Local authorities are urging anyone with information to come forward. The case highlights ongoing concerns about family violence and youth mental health, though investigators have not disclosed a possible motive. The suspect remains in custody as the investigation continues.

Next Steps

Police will prepare a brief for the Director of Public Prosecutions, with charges expected in the coming days. The 12-year-old survivor’s recovery will be closely monitored. The incident adds to a growing list of family-related homicides in Western Australia, prompting calls for increased support services for at-risk families.