Kaing Guek Eav, known as Duch, had been serving a life prison term for war crimes and crimes against humanity.
The ex-police officer from Argentina, who has lived for more than three decades in France, was extradited for crimes during the military dictatorship.
The industrial giant is still accused of financing terror groups including IS as it tried to keep its Syrian plant open amid the conflict.
Scott, the medic in question was in fact not the Navy SEAL defendant on trial for war crimes for the killing of this same IS fighter.
Asylum-seekers who may be war-criminals have not been investigated, claims German newspaper
Dragoslav Ognjanovic, 57, was shot dead in front of his apartment building in Belgrade, the Interior Ministry said in a statement.
Allegation of violation of rules of war may open door to future ICC prosecutions of key regime figures, including Bashar al-Assad.
White Helmets search rubble for bodies of children following strikes on Saqba.
Court winds up years of pursuing those accused of atrocities during the 1992-95 war.
ICC says it has a "reasonable basis" to investigate claims of torture and murder by British troops in Basra and elsewhere in Iraq.