darkknight109 posted...
That is not the main thing.
Mental health is definitely the main thing. Just because someone has no documented history of having mental health issues doesn't mean they don't.
If someone thinks that shooting up their school, a mall, their place is employment, etc., is a healthy response to the problems and stressors they are facing in life is not in a healthy mental state. Regardless of access to guns, that person who thinks violence is the best course of action needs help. They aren't coping properly with the same issues that all of us face daily without lashing out. That is very clearly a mental health issue.