He was the boy from the other side of the tracks, poor, black, who made it in a white man's world. The trial of 0 J Simpson, one of America's greatest sporting heroes, on charges of brutally murdering his wife and her friend has become the crime story of the decade. Panorama investigates the public and private sides of O J Simpson and reports on the issues behind the trial - race, domestic violence, money and justice, and the power of fame.