I think we've established that the shooter was mentally ill now. When it first started, no one knew he had a history of mental illness - it was just assumed. I think the OP's primary issue was someone on CNN using the term "crazies" to label the mentally ill. The thread kind of meandered & raised important questions as it went along.

Is a sociopath or psychopath mentally ill? A good question, which I haven't researched. The Vegas shooter had no history of mental illness; there were no signs of something going on in his life that was out of the normal. Is a guy who beats his wife mentally ill? I'd say that's a form of sociopathy. Examples like this abound. The question is, do we, as a community, want to be lumped in with people who commit unspeakable acts of violence for the sake of being violent? Yeah...There are sociopaths & psychopaths in society...the prisons are full of them. Is someone with bipolar disorder or severe depression in the same class as a gang banger who kills without a conscience? "Crazies?" There are many different kinds of "crazy." Do you want to be identified as a "crazy person" like the Vegas shooter, or a gang banger member of The Crips? I'm not pointing fingers at anyone; I'm just saying that this argument can be stretched too far. There's a pretty broad spectrum, & I think that's pretty much what pissed off the OP...& me, too.