One report quoted the brother of the Connecticut shooter as saying the shooter was suffering from a personality disorder and was "somewhat autistic".
I can see it now: all the movies with autistic killers, made all the more devious for their savant, practically superhuman, abilities.
I wouldn't want reality to stand in the way of good entertainment. It's a time honored tradition to take terminology and let the imagination run wild. The thing is though, if you take a moment, it turns out reality is horrific enough.