No one questions that a tribunal appointed by Nigeria's dictator, General Sani Abacha, found Saro-Wiwa guilty of murder in a sham trial. No one questions that on Nov. 12, 1995, an executioner hanged him - transforming a man into a martyr. What Saro-Wiwa's family wants confirmed is this: the allegation that the largest oil company in Nigeria, Royal Dutch Petroleum/Shell, conspired with Abacha's regime in Saro-Wiwa's death, desperate to silence the man who had brought its lucrative oil operations to a halt...Alan Detheridge, a Shell vice president...described the suit's allegations against the oil conglomerate as "entirely without substance."