Claiming he was not allowed to confront his accusers, the man known as "Carlos the Jackal" asked France's highest court Friday to overturn his conviction for a 1975 triple murder.
Ilich Ramirez Sanchez, who has been sentenced to life in prison for the murders, contends he did not always have legal assistance during the trial. Further, the court failed to include witnesses and there was "flagrant violation of the rules of arrest procedure," said his lead defense attorney, Isabelle Coutant-Peyre.
Ramirez, one of the world's most-wanted terrorists during the Cold War, was convicted Wednesday of shooting French police investigators Raymond Dous and Jean Donatini as well as a Lebanese man he believed was an informer, Michel Moukharbal.
The investigators had been probing attacks on Israel's El Al airlines at Paris' Orly Airport earlier that year.
During the trial, Ramirez's defense attorneys argued that he was illegally captured by French agents in Khartoum, Sudan, on Aug. 14, 1994, and criticized the court's reliance on 22-year-old testimony.