Most of the casualties were from the Central Security Organisation - a paramilitary force commanded by Yahya Saleh, a nephew of former President Ali Abdullah Saleh.http://www.bbc.co.uk/news/world-middle-east-18142695#TWEET148385
Yahya Saleh was dismissed from his post just hours after the attack.
Correction: According to Dr. Abu Gnuaid, "Ceremonial CS head, Tayyeb was replaced by his in-law Qawsi." No major change of guard has occurred. According to BBC, this is not the case.
Earlier the past week Tarek Saleh was sacked from the armed forces, the nephew of the former president. . This co-indices exactly with the suicide bombings and the Al-Qaeyda declaration today to attack all Americans.
All our photos have been traced to state media of the event, who were present and filming through out, rather than cellphones of passers by, which is usually how we receive photos. Footage of the event was mainly state media. This is very unsual to have state media at the site of a massacre, filming as it happens. (for footage and commentary see http://afrahnasser.blogspot.se/2012/05/deadly-attack-in-sanaa.html )
Hadi decrees: 1) Ammar Saleh has been replaced, position (Dep. Chairman/Director of the National Security Bureau) now under General Mohammed Jameh Alkhader. 2) Hadi appoints Gen. Hussien Mohammed Alradhi Commander of Rescue Police Forces + new chief of staff. 3) Hadi appoints Gen. Fadhl Al-Qawsi Commander of Central Sec. Forces and Counter Terrorism Units. 4) Hadi appoints Gen Humaid Chief of Staff at Rescue Al-Jandah Police Forces.
Yahya Saleh credit Reuters pictures: