Excerpt - Unknown gunmen assassinated the head of the Baghdad-based Arab Oil Institute, Izzidin al-Rawi, an Iraqi Sunni, an official with the institute told Dow Jones Newswires Wednesday. The official said that Rawi was abducted by unknown gunmen Sunday morning while he was driving on his way from home to his office in the northern outskirts of Baghdad. "His body was found in Baghdad mortuary Tuesday," he added. Al-Rawi is head of the Arab Oil Institute, which was set up in Baghdad by the Organization of Arab Petroleum Exporting Countries, or OAPEC, in 1978. (MORE TO FOLLOW)