Difficult one again John for the police to differentiate between a 'mental issue' antisocial attack and an act of terrorism.I suppose the best way for them is to assume a terrorist attack initially until other factors emerge,and I don't blame them.
There are also very many mentally ill people out there.They do indeed live and breed amongst us.I know many of us 'well' people find it hard to get our heads round acts of terrorism these days,so I can only imagine what such concepts of terrorism can have on the minds of an already mentally ill person.
My oft- spouted theories of a human mutating brain gene which will eventually destroy us become more evident every week.....