vito dies of a heart attack in 1955. there is a large funeral. at the funeral, tessio says that barzini wants to meet. michael now knows that tessio is a traitor, because barzini is a traitor. michael has all the five family bosses, tessio and greene, killed. at the same time, michael has the baptism of his son. michael has carlo confess to sonny's murder and says he is now in exile. however, clemenza murders carlo with a wire. kay asks michael if it is true what carlo said. michael denies it. capos pay respect to michael, the new "don corleone".