The Perugia murder trial of American student Amanda Knox has come to an end, Knox has been found guilty on all counts. Correspondent Peter Van Sant, examining the case - from the crime to the conclusion. Knox was on trial for the Nov. 2007 murder of her roommate, British student Meredith Kercher, who was found in her bedroom, semi-naked with her throat slashed. Within days, Knox, who was enrolled for six months of study at the University for Foreigners in Perugia, Italy, became a suspect in what prosecutor Giuliano Mignini described as a drug-induced sex orgy gone wrong.