When I was in high school I was reading a book about a planet where all the inhabitants were prisoners. I think it was Ray Bradbury. I never got to finish the book. Anyone know what the title might be?

Were you reading Martian Chronicles?! Prisoners in RB planet short stories..."The Exiles," "The Visitor," "The Earthmen," or maybe "The Murderer" or "Usher II."

Others?