NEW : U.S. student Amanda Knox says questioners badgered , slapped , confused her . Knox , ex-boyfriend on trial in death of Knox 's British housemate , Meredith Kercher . Knox contends she was at boyfriend 's house the night Kercher was killed . Score: 6
NEW : U.S. student Amanda Knox says questioners badgered , slapped , confused her . Knox , ex-boyfriend on trial in death of Knox 's British housemate , Meredith Kercher . Knox contends she was at boyfriend 's house the night Kercher was killed . Ivory Coast native Rudy Guede sentenced to 30 years for Kercher 's murder .