A Lebanese militiaman convicted in Washington of leading the 1985 hijacking of a Royal Jordanian jet with two Americans aboard now faces the possibility of being sentenced to life in prison. In convicting accused hijacker Fawaz Yunis on Tuesday, a federal jury handed the Justice Department a victory in its first prosecution of terrorism abroad. Jay Stephens, U.S. attorney for the District of Columbia, called the hijacking "a very serious crime" and said, "It's fair to say we will ask for a life sentence." Yunis, who was arrested in 1987 in an FBI "sting" operation on the Mediterranean Sea, was convicted of hostage taking, conspiracy and air piracy, and faces a maximum penalty of life imprisonment.