Fredo Corleone Betrayal Plot

In The Godfather Part II, Michael Corleone learns that his brother Fredo is the traitor in the family at a New Year's Eve party in Havana, when Fredo pretends not to know a man named Ola and then gives himself away. Back in Nevada, Fredo tells Michael he did not know Roth was planning an assassination and lashes out at being left out of the family business. Michael disowns him but orders that he not be harmed while their mother, Carmela, is alive. After her funeral, the enforcer Al Neri takes Fredo fishing on the lake and shoots him while Michael watches from the compound.