Radovan Karadzic: Former Bosnian Serb leader goes on trial at The Hague The former Bosnian Serb leader Radovan Karadzic has opened his defence before the United Nations war crimes tribunal where he will plead that he did not know what crimes were being committed in his name. Karadzic was arrested in July 2008 after almost 13 years on the run. He was charged with the genocide of around 8,000 unarmed Bosnian Muslims who were rounded up and bulldozed into mass graves in Srebrenica in July 1995.Picture: AP Photo/Robin van Lonkhuijsen