John Grisham's The Innocent Man is a nonfiction study of an Oklahoma case in which two men were wrongly convicted of rape-murder. They were eventually exonerated by DNA and Grisham wrote his book as an indictment of the Oklahoma criminal justice system. One of the defendants wrote a similar book and two others wrote forwards and epilogues. The plaintiffs, Oklahoma officials, a policeman, a criminologist and the prosecutor did not fare well in the books and other writings, so they sued for libel and defamation by false light, among other things.
For those of us interested in Grisham, nonfiction exposÚs, abuse of the criminal system (Nifong, anyone?), or the law of defamation, I am linking the Tenth Circuit's opinion here. (PDF file) It's only 15 pages and an easy read. Enjoy.