Saudi Arabia on Saturday identified the suicide bomber who killed 21 worshippers at a mosque for the mi**rity Shiite community, the deadliest attack in years to strike the Sunni-dominated kingdom. "His name was Salih bin Abdulrahman Salih al-Ghishaami, a Saudi national," the interior ministry said in a statement carried by the official Saudi Press Agency. "He was wanted by security services for belonging to a terrorist cell receiving directions from Daesh abroad," it said, using the Arabic acronym for the Islamic State (IS) group.