Quote Originally Posted by scum_triumphant View Post
I have to agree here - he wasn't insane enough to attack a boxing gym or a gang of Scaffolders on site. He was calculated and lucid enough to know to attack an easy and vulnerable target.
The notion that the person responsible is mentally ill is just one of the many items of some speculation that features on this thread (although I wouldn't be surprised).

On the logic in the quoted post, nobody who attacks a vulnerable target can be mentally ill. That's not really how it works.