Detective Comics #169

After Batman saves the life of an innocent condemned man on death row, the prison warden asks him to stick around as \"acting Warden\" until a new one is appointed. But he is puzzled as to why a prisoner that is scheduled to be released the next day attempts to break out the evening before. Batman figures that it may be connected to $250,000 missing since a robbery years before since the con occupies the same cell as the executed criminal responsible for the robbery.