The teen behind one of Canada’s worst mass shootings had an online life that mirrored that of American mass shooters.

The 18-year-old accused of killing nine people at a rural school had prior mental health calls to her home.

Canadian police said 18-year-old Jesse Van Rootselaar shot and killed six at a Canadian school after killing his mother and step-brother on Tuesday.

Police say the suspect had apprehended for a mental health assessment on more than one occasion.

The teen behind one of Canada’s worst mass shootings had an online life that mirrored that of American mass shooters.