PERUGIA, Italy - An Ivory Coast national was convicted today of murdering a British woman in central Italy, while a judge ruled that an American student and her former Italian boyfriend must stand trial for the same crime, lawyers said.

The judge indicted Amanda Knox of Seattle and Raffaele Sollecito on charges of murder and sexual violence in the slaying of Meredith Kercher in Perugia last year, said Francesco Maresca, a lawyer for the victim’s family. The trial will start Dec. 4.