To think that's the Godfather saga ended with Michael killing Fredo is naive. Michael needed to pay for his ultimate crime, and he did with the death of his daughter Mary by a bullet that was meant for him. The three films need to be seen as a cohesive whole. Yes there were a lot of problems with the making of Godfather III, all of which can be blamed on Paramount Pictures. But in spite of this, Francis Ford Coppola was able to make a beautiful, exciting, interesting, and a worthy ending to, what is arguably, the greatest TRILOGY in the history of filmmaking!