Dark Knight Rises killings in Aurora

[Kitsu]

5) the worst part of it all is that Holmes didn't exactly have too many warning signs before he finally snapped; Ph.D student studying neuroscience and only one minor misdemeanor with the police. Though we're going to be hearing a lot more about him as the investigation progresses.

This part here kinda reminds me of the first major recorded similar incident, Charles Whitman.

He also showed no easily-seen signs before the act.