Osama Bin Laden
Al Qaeda's longtime leader <a href="http://www.huffingtonpost.com/2011/05/01/osama-bin-laden-dead-killed_n_856091.html" target="_hplink">was killed</a> in an American raid on his compound in the Pakistani city of Abbottabad on May 1, 2011. (AP Photo, File)
Ayman Al Zawahri
Ayman al Zawahri became <a href="http://www.foxnews.com/us/2012/04/29/5-most-wanted-al-qaida-leaders/" target="_hplink">al Qaeda's new leader</a> after the death of Osama bin Laden. He is believed to be hiding in Pakistan and regularly releases propaganda videos. (AP Photo/SITE Intel Group)
Abu Yahia Al Libi
Abu Yahia al Libi was al Qaeda's <a href="http://www.huffingtonpost.com/huff-wires/20120429/us-al-qaida-top-5/" target="_hplink">de facto no. 2</a> after the death of Bin Laden. He escaped a high-security U.S. prison in Bagram, Afghanistan, in 2005. Al Libi <a href="http://www.huffingtonpost.com/2012/06/05/abu-yahia-al-libi-drone-strike_n_1569772.html" target="_hplink">was killed</a> in a drone strike in Pakistan in June 2012. (AP)
Nasser Al Wahishi
Al Wahishi was once bin Laden's <a href="http://www.huffingtonpost.com/huff-wires/20120429/us-al-qaida-top-5/" target="_hplink">aide-de-camp</a> and now commands AQAP, an al Qaeda's affiliate in the Arabian Peninsula. (AFP/GettyImages)
Ibrahim Hassan Al Asiri
Saudi Ibrahim Hassan al Asiri is <a href="http://www.huffingtonpost.com/huff-wires/20120429/us-al-qaida-top-5/" target="_hplink">believed to be responsible </a>for building the underwear bomb used to try to bring down a Detroit-bound jetliner on Christmas 2009, as well as the printer-cartridge bombs. (AP)
Said Al Masri
Al Qaeda's no. 3 was <a href="http://www.huffingtonpost.com/2010/05/31/al-qaeda-number-three-reported-killed_n_595561.html" target="_hplink">killed</a> in an American drone strike in May 2012. (Reuters TV)
Fazul Abdullah Mohammed
Mohammed, who led the organization in Eastern Africa, was <a href="http://www.huffingtonpost.com/2011/06/11/fazul-abdullah-mohammed-dead_n_875363.html" target="_hplink">killed</a> by the Somalian army in June 2011. (AP)
Abu Musab Al Zarqawi
Al Qaeda's brutal leader in Iraq was <a href="http://www.huffingtonpost.com/2010/04/19/two-top-al-qaeda-figures-_n_542653.html" target="_hplink">killed</a> in a U.S. airstrike in 2006. (AP Photo/U.S. Department of State, HO)
Saeed al-Shihri
The Yemen-based branch of al-Qaida says a U.S. drone strike has killed a former Guantanamo Bay prisoner who rose to become the group's No. 2 figure. The announcement, posted on militant websites, gave no date for the death of Saudi-born Al-Shihri. (AP Photo/SITE Intelligence Group, File)
Khalid Sheikh Mohammed
Khalid Sheikh Mohammed, the <a href="http://www.huffingtonpost.com/2012/05/06/khalid-sheikh-mohammed-trial_n_1489527.html" target="_hplink">self-described mastermind</a> of the attacks of 9/11, was <a href="http://www.bbc.co.uk/news/world-12964158" target="_hplink">captured in Pakistan in March 2003</a> and is currently being held at Guantanamo Bay. (AP Photo/FBI)
<em><strong>CORRECTION:</strong> An earlier version of this slide misstated the date of Sheikh Mohammed's capture.</em>
Saif Al Adel
Al Adel was Bin Laden's former <a href="http://www.huffingtonpost.com/huff-wires/20120229/ml-egypt-arrest/" target="_hplink">security advisor</a>. He is still on the run. (Getty Images)
Adnan El Shukrijumah
Adnan El Shukrijumah is reportedly responsible for al Qaeda's external operations. He <a href="http://www.huffingtonpost.com/2010/08/06/adnan-shukrijumah-new-al_n_673164.html" target="_hplink">lived in the U.S.</a> for more than 15 years. (FBI)
Atiyah Abd Al Rahman
Al Rahman was al Qaeda's liaison for Iraq, Iran and Algeria until he <a href="http://www.huffingtonpost.com/2011/08/27/atiyah-abd-al-rahman-al-qaeda-dead_n_939009.html" target="_hplink">was killed</a> on August 22, 2011 in Pakistan. (AP Photo/National Counterterrorism Center)
Fahd Al Quso
Senior al Qaeda Operative, <a href="http://edition.cnn.com/2012/05/06/world/africa/yemen-airstrikes/index.html">Fahd al Quso</a>, was killed in a U.S. airstrike while riding a vehicle in the Rafdh district of the Yemeni province of Shabwa. The 37-year-old was long wanted for his role in the <a href="http://www.weeklystandard.com/blogs/uss-cole-attack-12-years-later_654341.html">USS Cole bombing</a> in 2000. (AP Photo/FBI, File)
Walid Bin Attash
<a href="http://www.huffingtonpost.com/2012/05/06/khalid-sheikh-mohammed-trial_n_1489527.html">Walid Bin Attash</a>, Yemeni al Qaeda operative and alleged 9/11 conspirator, reportedly ran a training camp in Afghanistan and researched flight simulators and timetables. He is currently in U.S. custody and awaiting trial. (JANET HAMLIN/AFP/GettyImages)
Ramzi Binalshibh
<a href="http://www.huffingtonpost.com/2012/05/06/khalid-sheikh-mohammed-trial_n_1489527.html">Ramzi Binalshibh</a>, also a 9/11 conspirator, was initially tapped to be a hijacker, but ended up providing assistance such as finding flight schools when he couldn't get a U.S. visa. (AP Photo/Janet Hamlin, Pool)
Mustafa Ahmed Adam Al Hawsawi
Saudi native and al Qaeda operative, <a href="http://www.huffingtonpost.com/2013/01/24/saeed-al-shihri-dead_n_2545067.html">Mustafa Ahmed Adam Al Hawsawi</a>, has been accused of helping the hijackers with money, Western clothing, traveler's checks and credit cards. He is currently in U.S. custody at the Guantanamo Bay detention camp. (AP Photo/Janet Hamlin, Pool)
Ali Abd Al-Aziz Ali
<a href="http://www.huffingtonpost.com/2012/05/06/khalid-sheikh-mohammed-trial_n_1489527.html">Ali Abd al-Aziz Ali</a>, a Pakistani national, allegedly provided money to the hijackers. He is also known as Ammar al Baluchi. (AP Photo/Janet Hamlin, Pool)
Reuters | Posted: 08/05/2013 3:22 pm EDT | Updated: 08/05/2013 8:32 pm EDT