More than two decades after serving as a juror on the high-profile seven-month murder trial People v. Erik Galen Menendez, Hazel Thornton updates her book Hung Jury with a new preface and a postscript essay of observations about the Menendez brothers' second trial. Don't miss NBC's "Law & Order True Crime: The Menendez Murders" about Erik and Lyle Menendez.