anger, a great deal of frustration, alienation among sunnis. some of those sunnis aligned up with elements of the -- with the ousted saddam regime, and some of those sunnis formed together and they formed a group that went by a variety of names, but eventually came to be known as al qaeda in iraq. baghdadi came from this group. zakawi was also killed in a special operations raid. he was perhaps the group's most notorious leader the first time around. he was the one who really characterized the group's modus operandi, which was to terror ize civilians, to capture hostages, to behead them on video. like bin lauden himself, he was america's number one enemy. baghdadi did something different.