American student Amanda Knox, who has been convicted of murder, is escorted by penitentiary police officers during a break in the trial at the court in Perugia, central Italy, on Dec. 3, 2009. Knox's parents were indicted for libel Tuesday, Feb. 15, 2011, for claiming their daughter had been abused by the Italian police. (AP Photo/Pier Paolo Cito, File)

Photo by: PIER PAOLO CITO

American student Amanda Knox, who has been convicted of murder, is escorted by penitentiary police officers during a break in the trial at the court in Perugia, central Italy, on Dec. 3, 2009. Knox's parents were indicted for libel Tuesday, Feb. 15, 2011, for claiming their daughter had been abused by the Italian police. (AP Photo/Pier Paolo Cito, File)