Libyan security guards are pictured in front of a mural painting depicting a torture scene outside Tripoli's Abu Slim jail, where a masscare of  1,200 prisoners took place in 1996, during a three-day exhibition held in the gutted grey complex on June 29, 2012. Abu Slim was a top security prison notorious for torture and human rights abuses during the time of Moamer Kadhafi, who ruled with an iron-fist for 42 years until a popular uprising led to his ouster and killing in 2011.  AFP PHOTO/MAHMUD TURKIA        (Photo credit should read MAHMUD TURKIA/AFP/GettyImages)