his file picture taken on March 12, 2011 shows US Amanda Knox takes place in court before the start of a session of her appeal trial in Perugia's courthouse. Italian prosecutors on February 14, 2012 lodged an appeal against the acquittal of US student Amanda Knox, accusing her of murdering her British housemate Meredith Kercher in the university town of Perugia in 2007. TIZIANA FABI/AFP/Getty Images.
ROME (AP) - Amanda Knox says it's "painful" to have her acquittal on murder charges overturned by Italy's highest criminal court but she's confident in the truth, and says remaining questions about her case must now be examined by objective and capable prosecutors.
In a statement Tuesday, Knox said the Perugia prosecutors' theory of her involvement in the murder of British roommate Meredith Kercher is "completely unfounded and unfair."
She says: "No matter what happens, my family and I will face this continuing legal battle as we always have, confident in the truth and with our heads held high in the face of wrongful accusations and unreasonable adversity."
Italy's highest criminal court on Tuesday overturned the acquittal of Amanda Knox in the slaying of her British roommate and ordered a new trial, prolonging a case that has become a cause celebre in the U.S.
Lawyers for Knox and her ex-boyfriend Raffaele Sollecito looked grim as they huddled with prosecutors and court officials to get details after the ruling was issued. Lawyers for the Kercher family said they had got what they wanted.
Kercher's body was found in November 2007 in her bedroom of the house she shared with Knox and others in Perugia, an Italian university town where the two women were exchange students. Her throat had been slashed.
Prosecutors alleged Kercher was the victim of a drug-fueled sex game gone awry. Knox and Sollecito denied wrongdoing and said they weren't even in the apartment that night, though they acknowledged they had smoked marijuana and their memories were clouded.
An Ivory Coast man, Rudy Guede, was convicted of the slaying in a separate proceeding and is serving a 16-year sentence. Knox and Sollecito were also initially convicted of the murder and given long prison sentences, but were then acquitted on appeal and released.
The high court's ruling Tuesday overturns the appeals court acquittals.
Italian law cannot compel Knox to return from the U.S. for the new trial. The appellate court hearing the case could declare her in contempt of court but that carries no additional penalties.
It is unclear what would happen if she was convicted in a new appeals trial.
"If the court orders another trial, if she is convicted at that trial and if the conviction is upheld by the highest court, then Italy could seek her extradition," Knox's lawyer Carlo Dalla Vedova said Monday.
It would then be up to the United States to decide if it honors the request. U.S. and Italian authorities could also come to a deal that would keep Knox in the United States.
Knox, now 25, and Sollecito, who turned 29 on Tuesday, were arrested shortly after Kercher's body was found in a pool of blood.
The appeals court that acquitted them in 2011 criticized virtually the entire case mounted by prosecutors. The appellate court noted that the murder weapon was never found, said that DNA tests were faulty and that prosecutors provided no murder motive.
After nearly four years behind bars in Italy, Knox returned to her hometown of Seattle and Sollecito resumed his computer science studies, following the degree he successfully earned while studying in prison.
Knox is now a student at the University of Washington, according to her family spokesman, Dave Marriott.
Italy's judicial system allows for two levels of appeals, and prosecutors can appeal acquittals.
Although the court on Monday heard gruesome details, including how Kercher choked on her own blood, it wasn't ruling on the guilt or innocence of the defendants. Its sole task was to decide if the appellate trial was properly conducted.
Details of the ruling weren't issued Tuesday and won't be for several weeks.
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