Police investigated Thursday whether the slaying of Moslem leader Abdullah Ahdel was linked to his moderate views on the novel "The Satanic Verses," and a British Moslem official said the killing was "inevitable."

Brussels prosecutor Raymond Bossuyt confirmed that Ahdel, spiritual leader of Moslems in Belgium, the Netherlands and Luxembourg, received a death threat after he publicly criticized Iranian spiritual leader Ayatollah Ruhollah Khomeini for calling for the slaying of British novelist Salman Rushdie.Ahdel, 35, director of the Islamic Cultural Center in Brussels, and librarian Salem El Behir, 48, were found shot to death Wednesday in Brussel's main mosque. Bossuyt said both were slain in the late afternoon but so far no one had claimed responsibility and police had no suspects.