Amanda Marie Knox is an American woman who spent almost four years in an Italian prison for her conviction of murdering an exchange student sharing an apartment with her. She was born on 9th July 1987, and she was twenty years old at the time of the murder. Knox was the one who called the police after she made it back to her apartment following a night with her boyfriend. She found Kercher’s bedroom locked and blood in the bathroom. The interrogation was a matter of dispute, and the Italian police allegedly hit her during the interrogation. The US forensic experts think evidence at the scene was incompatible with her involvement. Italian police freed her in 2011, and the police caught a known burglar Rudy Guede a short time later when they discovered bloodstained fingertips on Kercher’s possessions.