Despite all the airtime devoted to Amanda Knox, it's still hard to reconcile the fresh-faced honor student from Seattle with the sexually rapacious killer convicted of the November 2007 murder of her British roommate. Few Americans have heard all of the powerful evidence that convinced a jury that Knox was one of three people to sexually assault Meredith Kercher, brutalize her body, and cut her throat. In Angel Face, Rome-based Daily Beast senior writer Barbie Latza Nadeau - who cultivated personal relationships with the key figures in both the prosecution and the defense - describes how the...