(Reuters) - A prominent leader of the Mississippi Tea Party who was arrested in connection with photos posted online of U.S. Senator Thad Cochran's bedridden wife died on Friday of an apparent suicide, the man’s lawyer said. Mark Mayfield, 58, was vice chairman of the Mississippi Tea Party and a Central Mississippi Tea Party chairperson, according to those organizations' websites. "This is a terrible tragedy that shouldn’t have happened," Mayfield's lawyer John Reeves told Reuters. Mayfield was one of three men accused last month of conspiring with a blogger who was charged with taking photos of Cochran's bedridden wife in...