Humam al-Balawi, the Jordanian double agent who killed seven CIA employees in a suicide bombing in Afghanistan last December, lured the agents to their deaths by convincing them that as a doctor he might have access to al-Qaeda leader Ayman al-Zawahiri, according to current and former intelligence officials. The death toll was especially high, say the officials, because the agents had gathered to give Balawi a present – a birthday cake. al-Qaeda - Ayman al-Zawahiri - Humam Khalil Abu-Mulal al-Balawi - Afghanistan - Double agent