1993 WORLD TRADE CENTER BOMBING
Abdul Rhaman Yasin
41, U.S. citizen who moved to Iraq as a child and returned in 1992. He fled the United States right after the bombing.
1995 PLOT TO BOMB AIRCRAFT IN THE FAR EAST
Khalid Shaikh Mohammed
Mid-30s, wanted in connection with a plot to blow up 12 civilian airliners over the Pacific during a two day period in January 1995. Mohammad is believed to be from Pakistan or Kuwait.
1996 KHOBAR TOWERS BOMBING
Ahmad Ibrahim Al-Mughassil
34-year-old Saudi indicted in U.S. court in Virginia for his role in the bombing of the U.S. military complex, which killed 19 servicemen.
Ali Saed Bin Ali el-Houri
36-year-old Saudi indicted for the bombing
Ibrahim Salih Mohammed Al-Yacoub
35-year-old Saudi indicted for the bombing
1998 U.S. EMBASSY BOMBINGS IN EAST AFRICA
Osama bin Laden
The leader of the al-Qaida terrorist network. Age, 44. He is the suspected mastermind behind the Sept. 11 terrorist attacks on New York and Washington that left 5,500 people dead or missing. Saudi-born, he has also been indicted for planning the 1998 bombings of U.S. embassies in East Africa and is suspected of being behind the USS Cole bombing.
Former Egyptian policemen believed to be one of bin Laden's two closest advisers. He is also known as Abu Hafs el-Masry. Earlier this year, Atef's daughter married bin Laden's son. Atef has been indicted for involvement in the embassy bombings and has been identified by U.S. authorities as a key military strategist and training director for bin Laden. Officials believe he was involved in planning the Sept. 11 terrorist attacks.