PERUGIA, Italy - Amanda Knox, a former University of Washington student who was studying abroad in Italy, had a growing hatred for her British roommate and fatally stabbed her in retaliation during a drug-fueled sex game, a prosecutor contended Friday in seven-hour-long closing arguments at her murder trial.
Lead prosecutor Giuliano Mignini argued that Knox, together with her ex-boyfriend and co-defendant Raffaele Sollecito and a third man convicted in a separate trial last year, killed Meredith Kercher under "the fumes of drugs and possibly alcohol." Knox and Sollecito tried to cover up their crime by staging a burglary, he contended.

