His parents were called to discuss his behaviour hours before the incident.
A teenager's been charged with murder and terrorism after a fatal shooting in the US state of Michigan yesterday.
At least four students died and at least seven people were injured, including a teacher.
15-year-old Ethan Crumbley is accused of opening fire at his school, around 30 miles north of Detroit.
Police say the gun used was bought by his father.
It's claimed the parents of the boy, accused of killing four classmates in the US ,were called to discuss his behaviour with teachers just hours before a shooting at his school.
Crumbley's been charged with murder and terrorism following the incident in Michigan.
He's also accused of attempted murder, after the six students and a teacher were injured.
Six Killed In Sydney Shopping Centre Attack
