Amanda Knox, the Seattle college student convicted of murder in Italy was back in court today (Monday)- this time for her appeal.
She listened as another man, convicted for the same crime, testified against her.
Amanda Knox smiled briefly during her appeal hearing in an Italian courtroom -that changed when a key witness testified she's guilty of murder.
The exchange student from Seattle was convicted in 2009 of killing her British roommate - Meredith Kercher while studying in Perugia, Italy.
Knox's boyfriend at the time -- Rafaele Sollecito -- was also covicted in the stabbing death along with a third man Rudy Guede... prosecutors called it a sex game gone terribly wrong.
Guede - who is serving 16 years in jail -- testified that he always believed Knox and Sollecito were involved in the killing. He denied defense claims he told a fellow prisoner that the couple was never there.
Later Knox addressed the court.... saying in Italian that she was "shocked and anguished" about Guede's testimony. "He knows we were not there" she said.
The 23-year-old claimed she, Sollecito and Guede had never been together - outside of a courtroom
Knox's best chance for freedom will come later this summer when a independent panel will present a review of the DNA used to convict her.
Prosecutors say Knox's D-N-A was found on the handle of a knife used to kill Meredith Kirchner.
But the defense claims that knife is NOT the murder weapon and could have been contaminated during testing.
Knox's mother is hopeful the D-N-A review will help clear her daughter.
Knox's Mother Edda Mellas said, "That will all come together to show that she was not there and had nothing to do with it."
The appeals process for Knox continues next month.
A verdict is not expected until the fall.