The editorial also discussed how Spiro Agnew differed from the men in the carving... Readers agreed, proven by the crowd at the dedication... Even James Venable, descendant of the man who originally allowed a Confederate Memorial to be carved on Stone Mountain, did not attend. (Source: an essay by an American student in a college class)
Since "descendant" is a count noun, shouldn't it be determined by an article? To improve this sentence, which article should be added? Definite or indefinite?