Al-Zawahiri was the second in command to Osama bin Laden during the 9/11 attacks, and took over as Al Qaeda leader in 2011 after U.S. forces killed bin Laden in Pakistan.
Al-Zawahiri was the second in command to Osama bin Laden during the 9/11 attacks, and took over as Al Qaeda leader in 2011 after U.S. forces killed bin Laden in Pakistan.