Teen Wolf, Season 4

Malia:
You murdered people. Not killed, murdered.

Peter:
There were extenuating circumstances.

Malia:
Like what? The fire?

Peter:
A fire that nearly burned me alive. Six years in a coma. Do you know what it's like for one of us? It's not a pleasant sleep. Imagine it: being trapped in your body, but still being fully cognizant. Unable to do anything other than listen to your own thoughts slowly driving you absolutely and totally insane. Minute-by-minute, day-by-day. Yes, I've done horrible, terrible things. And so have a lot of people. And horrible, terrible things are going to keep happening. Especially when there's a deadpool with your name on it.

Malia:
But not yours.

Peter:
True. But, I am not the Benefactor. I'm just a guy who's out millions of dollars, a few thousand of which I used trying to help you.