10. Bob Crane
Bob Crane was an actor and director who’s best known for his role as Robert E. Hogan in the hit TV show Hogan’s Heroes which ran from 1965-1971. On June 29th, 1979 he was found bludgeoned to death by a camera tripod in his apartment in Scottsdale. The police could find no motive for the crime, there were no witnesses and no leads. Therefore, his death remains unsolved ’til this day.