When Zawahiri's group merged with bin Laden's group to make the present day al Qaeda, Yazid became a founding member of al Qaeda.Д¬LICK HERE to follow ABC News Chief Investigative Correspondent Brian Ross on Twitter. An Egyptian, Yazid was an early member of Zawahiri's Egyptian Islamic Jihad. Since 2007, Yazid has been al Qaeda's commander in Afghanistan, brought into that position after al Qaeda's relationship with Mullah Muhammad Omar, the leader of the Afghan Taliban, had cooled.

'He's had a hand or a role in every major thing that the group has done to us or our allies in the last 9 years.' 'He was a very unpleasant guy,' said the official. official, it's also because Yazid has been one of the most 'dangerous' members of al Qaeda. has killed, Yazid was the most important, not just because of personal relationships with Zawahiri and bin Laden going back decades.

official told ABC News that being al Qaeda's number three is 'the most dangerous job in the world.'Д«ut of the multiple 'number three's' who the U.S. Since 9/11, American military and counterterrorism forces have killed or captured hundreds of al Qaeda operatives, including the man often cited as the original 'number three,' Khalid Sheikh Muhammed. The statement said that Yazid's wife, three daughters and a granddaughter died with him residents say the four missiles that hit the compound where he was staying also killed three Arabs and nine locals, but make no mention of Yazid's relations. Mustafa Abu al-Yazid, also known as Sheikh Sa'id, was killed late on May 21 in a CIA drone attack in the Datta Khel region of North Waziristan, according to residents of the village where he died.ДЄl Qaeda released a statement yesterday that eulogized al Yazid, calling him a martyr and praising his three-decade career fighting in multiple jihads.

Mustafa ahmed