While definitely not the best villain... it was a great way they tied this villain's demise into this deep story in the game, Mafia III (which wasn't that great of a game sadly) but the story was fantastic.
Senator Richard Blake, Democrat of Louisiana, and the reaction he and everyone give's here is terrific. The ending is superb. "I'm not ending with you. I'm starting with you!" The music playing, everything about this is the perfect end to this rather unassuming villain who was involved with the JFK assassination.