"We have to see the motivation," he said, referring to legal paperwork the judge must file within 90 days to explain the jury's reasoning.
Her family was disappointed, but not surprised, by the verdict, Knox's aunt Janet Huff told CNN.com
"It was terrible, it was gut-wrenching just to hear them say it," said Huff, speaking from her Seattle, Washington, home.
"And to see the people outside the courtroom applauding -- that just made me sick that people can be that callous and cold."
Knox and Sollecito were charged with murder and sexual violence in the November 2007 stabbing death of Meredith Kercher. Knox and Kercher, both studying abroad, were roommates. A third suspect was found guilty in a separate trial.
Prosecutors argued Seattle, Washington, native Amanda Knox was a resentful American so angry with her British roommate that she exacted revenge during a twisted sex misadventure at their home two years ago.
They said Knox directed Sollecito and another man infatuated with her, Rudy Guede, to hold Kercher down as Knox played with a knife before slashing Kercher's throat.
amanda knox verdict