"There's a fine line," Kyran answered, taking his time to formulate an answer. "I think the punishment should fit the crime but I also think that we shouldn't lose sight of what's going on around us. If killers are killed then that would just start a downward spiral. What if the killing was genuinely an accident? Or the one that had been killed was threatening the killer and he had to take action to save his loved ones? Cases aren't always that simple so...I don't supose there really is a right answer to youru question. As for it being a sin...I'm afraid I'm not religious so I can't say if it's a sin or not."