Here's a look at what you need to know about Osama bin Laden, the former leader of al Qaeda.
Personal: Birth date: 1957 (sources vary: either March 10 or July 30)
Death date: May 2, 2011
Birth place: Riyadh, Saudi Arabia
Birth name: Osama bin Muhammad bin Awad bin Laden
Father: Muhammad Awad bin Laden, a Yemeni immigrant who built a billion dollar construction company in Saudi Arabi
Mother: Hamida al-Attas
Marriages and Children: Married to Najwa (1974-separated days before 9/11), and had children Abdullah (1976), Abdul Rahman (1978), Sa'ad(1979), Omar (1981), Osman (1983), Muhammad (1985), Fatima (1987), Iman (1990), Ladin "Bakir" (1993), Rukhaiya (1997), and Nour (1999 or 2000)
Married to Khadijah (1983-1995, divorced), and had children Ali (1984 or 1986), Amer (1990) and Aisha (1992)
Married to Khairiah (1985-2011, his death), and had child Hamza (1989 or 1991)
Married to Siham (1987-2011, his death), and had children Kadhija (1988), Khalid (1989), Miriam (1990) and Sumaiya (1992)
Married to unknown woman (1996-annulled within days)
Married to Amal (2000-2011, his death), and had Safiyah (2001), Aasia (2003), Ibrahim (2004), Zainab (2006) and Hussain (2008)
Education: King Abdul Aziz University in Jeddah, engineering (1979)
Religion: Sunni Muslim
Other Facts: Bin Laden was the 17th of 52 children of construction magnate Muhammad Awad bin Laden, an immigrant from neighboring Yemen, who ran the construction company the Saudi bin Laden Group.
Muhammad Awad bin Laden became a billionaire by building his company into the largest construction firm in the Saudi kingdom.
Bin Laden married for the first time at age 17, to a Syrian cousin, Najwa.
Reportedly walked with a cane and suffered from kidney disease.
Timeline: 1979 - Travels to Afghanistan to join the jihad (holy war) against the Soviet Union. He remains there for a decade, using construction equipment from his family's business to help the Muslim guerrilla forces build shelters, tunnels and roads through the rugged Afghan mountains, and at times taking part in battle.
1988 - Bin Laden founds Al-Qaeda (or "the base").
1989 - The Soviet Union withdraws from Afghanistan. Bin Laden returns to Saudi Arabia to work for the family construction firm, the Bin Laden Group.
August 7, 1990 - Following the Iraqi invasion of Kuwait, U.S. troops arrive in Saudi Arabia. Bin Laden is outraged at their presence, and soon begins to target the United States for its presence on Saudi soil near the Muslim holy sites of Mecca and Medina.
1991 - Bin Laden is expelled by the Saudi regime. Eventually he and his followers relocate to Sudan, taking assets that had grown to an estimated $250 million, according to some officials (others estimate a much lower value). There, al Qaeda begins to evolve into a terror network.
December 1992 - U.S. forces land in Somalia, spearheading a U.N.-authorized humanitarian plan to bring in famine relief supplies. Part of their challenge is disarming the various warlords who control the country. Prosecutors charge that bin Laden threw himself into the midst of this conflict, sending some of his followers to Somalia to train the warlords to fight the U.S. troops.