Talk about a conflict! Currently he is representing all 4 of the adult children presumably in an effort to find the truth, keep the police on their toes, etc. If one of them ends up being charged, how could he then say, ok, nevermind the rest of you, I'm going to dump you and defend the one charged, and take back all of the evidence we've already uncovered when I represented all 4 of you, in case it might be detrimental to the one that is now charged. I would think that if one ends up charged, the remaining 3 would be at odds with that one that *is* charged and have different agendas at that time - with the 3 wanting (presumably) to know the truth of what happened no matter whodunnit, and the one wanting to get off on the charges whether he 'dunnit' or not. It might be different if all 4 of them were charged, but that is highly doubtful. I doubt if they could then take back evidence already handed over, regardless. jmo.