Ayman al-Zawahiri

In this image taken from a video, Ayman al-Zawahri, head of al-Qaida, delivers a statement which was seen online by the SITE monitoring group.


FILE - This July 27, 2011 image shows al-Qaida'a new leader Ayman al-Zawahiri. The Egyptian cleric took over the organization after Osama bin Laden's killing last year by U.S. Navy SEALs. Presumed hiding in Pakistan, Zawahiri has released a near-record number of propaganda videos since the bin Laden raid, exhorting followers to violence.

AP Photo/ IntelCenter, File

This undated file image from a video provided by IntelCenter, posted on the Internet Thursday, April 13, 2006, shows Al-Qaida's then deputy leader Ayman al-Zawahri. Al-Qaida has selected its longtime No. 2, Ayman al-Zawahri, to succeed Osama bin Laden following last month's U.S. commando raid that killed the terror leader, according to a statement posted on a website affiliated with the network.

AP Photo/ IntelCenter, File

A video grab posted on Dec 7, 2005 shows Al-Qaida's deputy leader, Ayman al-Zawahri. A week after the death of Osama bin Laden, his longtime deputy is considered to be the front-runner to succeed the iconic al-Qaida founder but uprisings in the Middle East and changing dynamics within the group could point to another scenario: a decision not to appoint anyone at all to replace the world's most-wanted terrorist.

AP Photo/ AP Television News, File

In this file image provided by Intel Center, Al-Qaida's No. 2, Ayman al-Zawahri, speaks during a new 106-minute long video released Sept. 22, 2009 predicting President Barack Obama's downfall at the hands of the Muslim world. He may succeed Osama as Al-Qaida chief.

AP Photo/IntelCenter, File

In this 1998 file photo, Ayman al-Zawahri, left, poses for a photograph with Osama bin Laden, right, taken in Khost, Afghanistan.

AP Photo/ Mazhar Ali Khan, File

File photo/ TV Grab: Osama bin Laden, right, listens as his top deputy Ayman al-Zawahri speaks at an undisclosed location in Afghanistan.

AP Photo/ Al-Jazeera/APTN, file

In this undated still from video released Sept. 10, 2003, Al-Qaida leader Osama bin Laden, left, and his top deputy Ayman al-Zawahri appear.

AP Photo/ Al Jazeera via APTN