Abu Musab al-Zarqawi
Summary: self-proclaimed leader of Al-Qaeda in Iraq who took responsibility on several audiotapes for numerous acts of violence in Iraq including the killing of civilians and the taking of hostages, who was allegedly responsible for many other acts of violence including the beheading of hostages in Iraq (he had beheaded Nicholas Berg in May 2004).
Cause of Death: Killed by a U.S. military air strike
Born: October 30, 1966
Died: June 7, 2006
Location: Baquba, Iraq