Rudy Hermann Guede of Ivory Coast, center, testifies during the appeal hearing, in Perugia, Italy, Monday, June 27, 2011. The first man convicted of killing a British student in Italy is to give evidence in the appeal hearing of American Amanda Knox and her former boyfriend against their murder convictions. Guede is serving a 16-year-prison sentence for the 2007 murder of Meredith Kercher, a British student who was stabbed to death in the apartment she shared with Knox. (AP Photo/Stefano Medici)