DUBAI (Reuters) - A Saudi militant killed in 2004 was due to have been the 20th suicide plane hijacker in the September 11, 2001 attacks, al Qaeda's media arm said in a statement on the Internet on Tuesday. "Turki bin Fheid al-Muteiri -- Fawaz al-Nashmi -- may God accept him as a martyr (was) the one chosen by Sheikh Osama bin Laden to be the martyrdom-seeker number 20 in the raid on September 11, 2001," said the statement. In May, bin Laden said Zacarias Moussaoui, the only person convicted in a U.S. court for the September 11 attacks, had...