Amanda Knox found guilty on all six charges
Perugia, Italy (CNN) -- An Italian jury has found American student Amanda Knox and her Italian boyfriend Raffaele Sollecito guilty in the stabbing death of British exchange student Meredith Kercher.
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.
Defense lawyers argued that Guede, who was convicted in a separate fast-track trial and is currently appealing his conviction, was the sole killer. On Thursday, Knox took the stand for a third time in the Perugia courtroom, telling jurors that she is not a "killer" who stabbed her former roommate.
"They say that I am calm. I am not calm," Knox said in Italian. "I fear to lose myself, to have the mask of the killer forced upon me. I fear to be defined as someone I am not."Prosecutors touted an airtight case.
They argued DNA on Kercher's bra clasp belonged to Sollecito. And the alleged murder weapon, a 6 ½-inch kitchen knife taken from Sollecito's home, had the DNA of Knox on the handle and Kercher on the blade, prosecutors said.
During the trial, the defense cast doubt on the knife evidence, arguing it doesn't match the wounds on Kercher's body.
And they said the bra clasp with Sollecito's DNA on it was left at the crime scene for weeks and is so contaminated that the evidence can't be considered credible.
See the evidence against Knox and Sollecito
Knox's family has argued she has been the victim of character assassination.
Members of Kercher's family have declined repeated CNN requests for comment.
Prosecutor Giuliano Mignini accused the defense of "lynching" the Italian police who worked on the case.
Knox and Sollecito have been jailed for more than two years. The trial began in January in Perugia, a university town about 115 miles (185 kilometers) north of Rome.