Radicalised Perth teen shot by police: Final texts of the schoolboy revealed [Video]

The final text messages from a radicalised Perth teenager shot dead by police on Saturday night give rare insight into the mind of a boy who had descended into extremism.

The 16-year-old Rossmoyne Senior High School student was killed in a Bunnings car park in Willetton after stabbing a stranger in the back with a large kitchen knife, and then chasing and lunging at police.

WA Premier Roger Cook said the boy, a Caucasian male who had converted to Islam, had a complex history of mental health issues and had been enrolled in a government-funded anti-extremism program since he was 14 years old.

“We were obviously well aware of the thoughts that he was harbouring, and he was an active participant in that program since two years ago,” he said.

“The law doesn’t prohibit people from having …