The Case of Immunity Sallah was in his rooms, everybody says he was there but nobody in fact didn't see him.A simple, but good alibi.
Most crucial game: Paul Hanlon's defense could very easily argue that his clock hadn't been wound and therefore wasn't chiming. I doubt very much a jury would convict on evidence that wasn't there as opposed to evidence that was.
Murder By the Book Suitable For Framing The Most Crucial Game Candidate For Crime Double Exposure Playback The Bye-Bye Sky High I.Q. Murder Case