Mohamed Atta
Mohamed Mohamed el-Amir Awad el-Sayed Atta ( ; ""  ; September 1, 1968 – September 11, 2001) was an Egyptian hijacker and one of the ringleaders of the September 11 attacks in which four United States commercial aircraft were commandeered with the intention of destroying specific civilian targets. He served as the hijacker-pilot of American Airlines Flight 11 and crashed the plane into the North Tower of the World Trade Center as part of the coordinated attacks. At 33 years of age, he was the oldest of the 19 hijackers who took part in the attacks.
Mohammad Al-Ali
Al-Ali was born Abdullah bin Ali Al Salem in Riyadh on July 17, 1949. his first study in Saudi Arabia then moved to Damascus and Cairo., he returned to Riyadh in 1962-1965 Where he joined the Saudi television before studying Electronic Engineering in the United Kingdom for four years until 1970. at the same years he work as English announcer in Saudi Arabian Airlines, Al-Ali married and has a three boys.