A US student under suspicion in the murder of her British roommate in Italy is claiming drugs have blurred her memory of the night Meredith Kercher was killed. In a statement obtained by CNN, Amanda Knox of Seattle insists she does know one thing: "I didn't kill Meredith." Knox told police she has only "flashes of blurred images" of what occurred.
"I saw myself cowering in the kitchen with my hands over my ears because in my head I could hear Meredith screaming," she wrote in the police statement. Knox, her Italian boyfriend and a second man are being held in Perugia in what police believe was a drug-fueled sex assault that ended in murder. DNA tests have confirmed that the second man had sex with the victim that night. (Read more Perugia stories.)