Amanda Marie Knox (born July 9, 1987) is an American woman who spent almost four years in an Italian prison accused of the 2007 murder of Meredith Kercher, one of the women who shared her apartment, before being definitively acquitted by the Supreme Court of Cassation. Knox had raised the alarm after returning from spending the night with her boyfriend, Raffaele Sollecito. Police initially thought a faked burglary at the apartment indicated a single male known to Kercher, but investigations began to focus on Knox, although she was officially a witness. Four days later, she and Sollecito were arrested, over the objections of the policeman heading the investigation. Knox and Sollecito were initially accused of acting with a bar owner she worked for, but he was released and substituted for Rudy Guede whose bloodstained fingerprints had been found on Kercher's possessions.