What should I do for my book Raven City?

I guess that someone that's been diagnosed with some kind of mental insanity disease, maybe schizophrenia, or something to the like, attack Rosalyn with a knife or a gun while he (uming the insane person is male) is preaching about the world ending and just some random, insane babble about some kind of hallucinations that only he can see an everything, and then you could have Neil save her, and she'd recognize that the superhero is Neil by some little habits that the superhero has, like biting his lip when he's nervous, or wrinkling his nose when he's frustrated, little things like that. But things that Rosalyn has noticed about him before. And then she'd realize that the superhero looks kind of like Neil, like his shadow, his silhouette and everything. Things like that. I'm going with the insane person, since the insane never fail to amuse, and because they're pretty random. Good luck! =]