To properly answer the OP's question at the end, Warren kind of hates every time he feels the only way out of a situation is violence. He crossed a major line some years ago in the face of losing people he loved, and the reality of it shook a lot of his belief in himself and scared him quite a bit. There was another situation where he was stuck in cramped quarters with a lot of people all trying to kill each other and he killed someone there, too, and no matter how he tries to justify it he knows it was really just murder. It's been a long while since then but he's still not sure if he's a good person or if he's just got a lack of reasons to be unhinged.
The only "benefit" that he drew from this is that he learned the lengths he'd be willing to go for people he cares for, even if that length is terrible, horrible, no good very bad awful.
The only "benefit" that he drew from this is that he learned the lengths he'd be willing to go for people he cares for, even if that length is terrible, horrible, no good very bad awful.