Key dates in case of American student Amanda Knox, convicted in slaying of British roommate Meredith Kercher.
— Nov. 2, 2007: Body of Kercher, 21, is found in Perugia apartment. Investigators say she was killed the night before.
— Nov. 6, 2007: Knox is arrested with then-boyfriend Raffaele Sollecito, and Diya "Patrick" Lumumba, Congolese owner of pub where Knox occasionally worked.
— Nov. 20, 2007: Lumumba, implicated by Knox statements to police, is released from jail for lack of evidence.
— Dec. 6, 2007: Ivory Coast national Rudy Hermann Guede is extradited from Germany, where he was arrested, and jailed upon arrival in Italy.
— Dec. 14, 2007: Kercher is laid to rest after London funeral.
— Oct. 28, 2008: Judge indicts Knox and Sollecito on murder and sexual assault charges. Guede, who was granted a fast-track trial, is convicted of murder and sexual assault and sentenced to 30 years in prison.
— Jan. 16, 2009: Trial of Knox and Sollecito opens in Perugia.
— June 12, 2009: Knox takes stand; tells court she was shocked by Kercher's death, offers alibi, says police beat her into making false statement.
— Dec. 4, 2009: Court finds Knox guilty of murder and sexual assault; sentences her to 26 years in prison. Sollecito is convicted of same charges and sentenced to 25 years.
— Dec. 22, 2009: Appeals court upholds Guede conviction and cuts sentence to 16 years.
— Nov. 8, 2010: Judge orders Knox to stand trial on slander charges for claiming police beating.
— Nov. 24, 2010: Appeals trial for Knox and Sollecito opens in Perugia.
— Dec. 16, 2010: Italy's highest criminal court upholds Guede's conviction and 16-year prison sentence.
— June 29, 2011: Independent forensic report ordered by the appeals court finds much of the DNA evidence used to convict Knox and Sollecito is unreliable.
— Oct. 3, 2011: Italy appeals court clears Knox, Sollecito of murder conviction, orders her freed immediately