Italian prosecutors sought to persuade an appeals court to uphold the murder conviction of Amanda Knox, saying during closing arguments Friday that "all clues converge toward the only possible result" of finding the young American woman and her co-defendant guilty. Speaking for two hours in a packed room, Prosecutor Giancarlo Costagliola urged the jury to keep in mind the family of the victim, British student Meredith Kercher, who was Knox's roommate at the time of the slaying. His fellow prosecutor,...