NEW : U.S. student Amanda Knox says he badgered , slapped , confused her . ... Knox , ex - girlfriend on trial in death of Knox 's British housemate , Meredith Kercher . Knox contends she was at boyfriend 's house the night Kercher was murdered . Ivory Coast native Rudy Guede sentenced to 15 years for Kercher 's murder .
NEW : U.S. student Amanda Knox says he badgered , slapped , confused her . Knox , ex - girlfriend on trial in death of Knox 's British housemate , Meredith Kercher . Knox contends she was at boyfriend 's house the night Kercher was murdered . Ivory Coast native Rudy Guede sentenced to 15 years for Kercher 's murder .