An appeals court will decide later on Monday if Knox is guilty of murder in a case that made her an unwilling celebrity and placed Italy's justice system under scrutiny.

Knox, who has spent that last four years in prison, looked tense as she entered the courthouse where she and her co-defendant Raffaele Sollecito made their final case for their freedom. The eight-member jury began deliberating early Monday afternoon on whether the pair's 2009 convictions and prison sentences — 26 years for Knox, 25 years for Sollecito — should stand, be dismissed or altered.