Yeah, I'm going to have to disagree. Al is only a 14 year old boy. Would you have killed a living person when you were 14? Probably not. All he wants to do is get his original body back, his plan was never to kill people in the process. The main point of Al is that he's a child, and he has that strong sense of innocence about him. While Ed, in this version of the anime anyways, has lost his sense of innocence after he killed Greed. So in a way, it's kind of contrasting the two characters.
But in my opinion, I really love Al and how childish he is. I feel like if he had killed anyone it would take away a sense of realism in the story.
Roy x Riza - Edward x Winry - Ling x Lan Fan - Alphonse x Mei - Havoc x Rebecca