There's 3 parts to the movie and I like the part Michaels older but dumb older brother Fredo was caught dealing with another outfit against the enterests of his family. Mike waited untill their mother died then had Fredo taken out on the lake by their house and had one of his crew shoot Fredo. This must have been difficult for Mike,but he saw a weak link in the family and did what he felt he had to do.Other families saw the Corleone family as weak because of Fredo. Oh well...it was movie...true to life,but a movie. I would never break the law...myself anyway!