Bystanders found all four on the side of the road at Valley Heights on Sunday with stabbing injuries
Get our breaking news email, free app or daily news podcast
Police have alleged that a mother was behind a stabbing attack on three young children that left one dead and two others fighting for their lives in hospital.
The woman, aged in her 40s, is also in a critical condition.
Support for anyone affected by the subject matter of this report is available at Full Stop Australia (1800 385 578)
Continue reading...