the innocent victim of an enormous mistake an emotional amanda knox broke down several times during the appeal of her conviction of her and her boyfriend and another man over the killing ofle roommate back in 2007 and what the italian drug prosecutor ares labeled a drug fueled sex game. meredith was found half clothed on her bed in the apartment she and amanda shared in italy. much of the appeal centers on the defense contention that the dna evidence in the case clouding a kitchen knife and a bra clasp and other stuff may have been contaminated and the defense wants to bring in a jailhouse snitch who claims a convicted codefendant told him amanda and the defendant had nothing to do with murdering meredith. we welcome back the parents of amanda knox. their u.s. attorney sits alongside me in our new york studio.