The 11 September attack on Benghazi`s consulate resulted in the death of Ambassador Chris Stevens, three other US officials, and ten Libyan security officials. Initial accounts suggested that spontaneous protests against Terry Jones` "anti-Islam" video initiated the violence, but succeeding reports indicate the demonstration was used as a front for a premeditated, professional assault. Several scenarios, ranging from disgruntled extremist Salafists to fifth column elements remain plausible. One probability also involves al-Qaeda elements; on 10 September, a video of Ayman al-Zawahiri surfaced, calling for Libyans to avenge the death of their compatriot Abu Yah7a al Libi, Al Qaeda`s former "number two," who was killed in a June drone strike in Pakistan.