Amanda Knox's Murder Conviction Reinstated on Appeal

Amanda Knox ABC News - H 2013

Amanda Knox ABC News - H 2013

An Italian court sentenced Knox, who published a memoir last year, to 28 1/2 years in prison for the 2007 murder of her British roommate.?

An appeals court in Florence has upheld the guilty verdict against U.S. student Amanda Knox and her ex-boyfriend for the 2007 murder of her British roommate. Knox was sentenced to 28 1/2 years in prison, raising the specter of a long legal battle over her extradition.

After nearly 12 hours of deliberations Thursday, the court reinstated the guilty verdict first handed down against Knox and Raffaele Sollecito in 2009. The verdict had been overturned in 2011 and the pair freed from prison, but Italy's supreme court vacated that decision and sent the case back for a third trial in Florence.

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While Sollecito was in court Thursday morning, he didn't return for the verdict, and Knox was half a world away awaiting the decision with, in her own words, "my heart in my throat."

Last spring, Knox made the TV rounds while promoting her memoir, Waiting to Be Heard. In the book, she revealed that she considered committing suicide while in an Italian prison. Other revelations from Waiting to Be Heard include allegations of abuse from Italian authorities, bullying from other prisoners and her trouble readjusting to normal life after four years in prison.

Lifetime aired a TV movie about Knox, Amanda Knox: Murder on Trial in Italy, in 2011. It starred Hayden Panettiere.