PERUGIA, Italy, Oct. 18 (UPI) -- An Italian prosecutor said Saturday that an exchange student from Seattle stabbed her roommate because she refused to participate in an orgy.
Amanda Knox is one of three people charged with killing Meredith Kercher, a student from Britain, in December. Giuliano Mignini gave the prosecution's theory of the crime at the end of the trial of a co-defendant, Rudy Guede, The Independent reported.
Mignini asked the court to impose a life sentence on Guede, who asked for a fast-track trial and implicated Knox and her boyfriend, Raffaele Sollecito, in the apparent hope of lenient treatment. Guede said he was in the bathroom when Kercher was killed.
Knox stabbed Kercher, and then Guede strangled her while Sollecito held her down, Mignini said.
The two women, Knox from the United States and Kercher from a London suburb, were sharing a house in Perugia.
Knox appeared in court Saturday and denied killing Kercher.
"Meredith was my friend," she said. "I had no reason to kill her."
