Don’t ever kill your twin. It’s too hard to keep covered up. (I mean, don’t kill anyway, but there should be an extra law against killing doppelgangers and taking their place. It just leads to strange roads is all I’m saying.)
I think he’s now killed 1 coroner, 1 mistress, 1 man’s wife, 1 brother, 1 prosecutor (maybe, he’s still unconscious) to stay where he is. That’s a lot of trouble to go to, not to mention sticking another man in prison, kidnapping a little girl and posing with your brother’s wife as a loving couple.