So we've got a situation where a) someone has joined a gang where the morals permit killing people, b) their leadership (rightly or wrongly) becomes paranoid fo

So we've got a situation where a) someone has joined a gang where the morals permit killing people, b) their leadership (rightly or wrongly) becomes paranoid for whatever reason, and c) they accidentally kill a one or more of their own gang members thinking they are informants. So... that's clearly murder and those who committed it should be brought before the legal system... but it's not exactly the most tragic thing I can conceive of.