    Sentence 1: Turki Nasser al-Dandani  snother key Saudi operator for Al Qaeda  and a second main suspect in the Riyadh  bombings remains at large -    Sentence 2: Turki Nasser al-Dandani  smother suspected Saudi operative for  Osama bin Laden 's al-Qaida terror network  and top suspect in the Riyadh bombings ,  remains at large -