On the morning of June 1, 1921, a white mob numbering in the thousands marched across the railroad tracks dividing black from white in Tulsa, Oklahoma, and obliterated a black community then celebrated as one of America's most prosperous. 34 square blocks of Tulsa's Greenwood community, known then as the Negro Wall Street of America, were reduced to smoldering rubble. And now, 80 years later, the death toll of what is known as the Tulsa Race Riot...