FATAL REVISIONS -- The fatal, broad-daylight shooting of two ad agency employees in a Manhattan parking lot intrigues Logan and Cerreta. The murders appear to be professional hits, but for what reason? After they trace the crime to Canada, prosecutors are stymied by new developments during trial. Plus, ADA Stone (Michael Moriarity) "persuades" a confession out of a defendant -- to spite an old nemesis, who happens to be the defense attorney. George Grizzard (Wonder Boys) guest stars.