I don't agree, DT. If you have pre-knowledge of a murder, and do nothing to prevent it, then you are just as guilty as the murderer. Michael, knowing that Neri and Calo would be dispatched to murder his enemies, is just as guilty as the person giving the orders. Passing over the reins made him just as guilty. That was his opportunity to end the killing, and he let it slip through his fingers. In GF2, when he is asked, "Do you have to take everyone out?", he says, "Not everyone, just my enemies." But at that point, he thinks of almost everyone as his enemy.