• Lawyer Tom
Tom lets his one and only client Michael commit up to five counts of perjury, seemingly happy! and says somewhat gleefully! that “Roth well he -- he played this one beautifully”

Quote
Michael: Alive -- Pentangeli is alive. How'd they get their hands on him?
Tom: Roth He engineered it Michael. Frankie went to make a deal with the Rosato Brothers -- and they tried to kill him
Our people with the New York detectives said he was half dead, scared stiff and calling out loud that you'd turned on him. They'd already had him on possession, bookmaking, murder 1 and a lot more
Yet Tom knew? nothing about all this until after.... or kept it all to himself! until Michael committed perjury
Neri: The FBI has him [Pentangeli] air-tight -- he's on an army base twenty-four hour guards
Tom: No way we can get to him. If we don't it's up to five counts of perjury [yeah! right]
Michael: What about Fredo? What does he know?
Tom: He says he doesn't know anything -- and I believe him. Roth well he -- he played this one beautifully
Michael: I want to talk to Fredo

Then we find Fredo knew plenty