Key dates in case of Amanda Knox in slaying of British roommate Meredith Kercher.

Nov. 2, 2007: Body of Kercher, 21, is found in Perugia, Italy, apartment, after being killed the night before.

Nov. 6, 2007: Knox is arrested with then-boyfriend Raffaele Sollecito, and Diya "Patrick" Lumumba, Congolese owner of pub where she had worked.

Nov. 20, 2007: Lumumba, implicated by Knox, is released from jail for lack of evidence.

Dec. 6, 2007: Ivory Coast national Rudy Hermann Guede is extradited from Germany.

Oct. 28, 2008: Knox and Sollecito indicted on murder and sexual-assault charges. Guide 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 tells court police beat her into making false statement.

Dec. 4, 2009: Court finds Knox and Sollecito guilty of murder and sexual assault; she gets 26 years, he gets 25 years.

Nov. 8, 2010: Judge orders Knox to stand trial on slander charges for claiming police beating.

June 29, 2011: Independent forensic report ordered by the appeals court finds much of the DNA evidence is unreliable.

Oct. 3, 2011: Italy appeals court clears Knox, Sollecito of murder.

The Associated Press