True, we do not know whether there was cooperation, or continued efforts to prevent a relationship between the shooter and his father. I have not looked for additional court documents.
If there are 5 children (per links upthread), and the shooter is the oldest, then all five are close in age. The step-brother who was killed was born in 2015, at the same time that mother took the children to the Atlantic provinces (same time as father's affidavit for access to his children)
Based on RCMP statements, there were mental health problems, and there was no history of school-based bullying. Based on that, my impression was that small town and limited population was not a factor in the shooting.
"Police said there was a
history of officers attending the shooter’s home for mental health-related call-outs, some of which concerned guns.
There was
no evidence to suggest he was bullied at school for being transgender, police said."
Social media posts uncovered by The Telegraph reveal mental health issues of teenager who killed eight
www.telegraph.co.uk