Gaddafi aide's arrest could shed light on Libyan secrets
Abdullah Senussi was considered to be Muammar Gaddafi's most trusted aide, his "right-hand man, the executioner," as the international criminal court (ICC) prosecutor Luis Moreno-Ocampo has put it.
Senussi's arrest in Mauritania after months on the run is a blow not only to the remnants of the Gaddafi regime. Libya's former head of military intelligence would have been privy to its most sensitive secrets information that could yet cause embarrassment to Britain and other countries.
Senussi, 62, married to a sister of Gaddafi's widow, was among the Libyan leader's ahl al-Khaimah (people of the tent), his closest inner circle. US embassy cables released by WikiLeaks identified him as a confidant who made "many of his [Gaddafi's] medical arrangements". He was said to have been a close adviser to Gaddafi's son Saif al-Islam.
http://www.guardian.co.uk/world/2012/mar/18/gaddafi-aide-arrest-libyan-secrets?newsfeed=true