Ahmed Abu Khattala
• Native of Benghazi in eastern Libya
• Construction worker by trade
• Spent several years in Col Muammar Gaddafi’s notorious Abu Salim prison in Tripoli
• Formed his own small militia during the anti-Gaddafi uprising
• Denies any links to al-Qaeda but has expressed admiration for it
• Also denies any role in the attack on the US embassy in 2012, but eyewitnesses report him being there
• US state department says he is a senior leader in Islamist group Ansar al-Sharia