Supporters of Radovan Karadzic clash with police during a protest in Belgrade. One of the world's most wanted men, he was practicing medicine and living in Belgrade when he was arrested on genocide charges. The worst crimes on Karadzic's indictment for genocide and crimes against humanity are the 43-month siege of the Bosnian capital, Sarajevo, in which more than 10,000 civilians were killed, and the 1995 Srebrenica massacre. (Getty Images)
Twenty years ago the Dubai-based business tycoon watched his parents flee the Rwanda genocide having lost everything — again. Today, the company he started to help get his family back on their feet is a monstrous conglomerate in 22 African countries.