CNN Wire Staff
Perugia, Italy (CNN) - Former American student Amanda Knox went back to court Wednesday to appeal her conviction for murdering her British roommate.
She is tense and has lost weight, her lawyer, Luciano Ghirga, told reporters.
And she is facing a difficult legal battle, he said.
Rather than prosecutors having to prove she is guilty, "we have to prove her innocence, which is more difficult to do," Ghirga said.
Her stepfather, Chris Mellas, said she had a "a very strong appeal" and there were "ample grounds for Amanda's release."
He said he experienced deja vu walking back in the court where she was convicted nearly a year ago and seeing "a new jury, new judge - new judges. Unfortunately the old prosecutor, still, but you can't get everything."
The hearing lasted about 15 minutes before the judge adjourned it until December 11 because one of the lawyers was not present.
Knox, 23, was sentenced last December to 26 years in prison for the killing of Meredith Kercher at the villa they shared in Perugia, the central Italian town where both were students.
Kercher, 21, was found in November 2007, semi-naked with her throat slashed. Knox and her former Italian boyfriend, Raffaele Sollecito, were both found guilty of the murder.
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