I think he had to stick around as long as possible to try to find out who the traitor was in his family. Immediately after Fredo made his fatal gaffe, he signaled the bodyguard to go ahead and kill Roth.
Ntra la porta tua lu sangu � sparsu, E nun me mporta si ce muoru accisu... E s'iddu muoru e vaju mparadisu Si nun ce truovo a ttia, mancu ce trasu.
