A 1921 massacre destroyed ‘Black Wall Street’ in Tulsa. The city is still looking for the dead

They marched into the thriving black Tulsa neighborhood on May 31, 1921, with shotguns and Molotov cocktails. Some wore masks, while others proudly showed their white faces.

Over the next two days, the mob killed hundreds of African Americans, drove thousands more from homes and looted businesses before burning them to the ground.

The rampage, known as the Tulsa Race Massacre of 1921, is among the worst incidents of racial violence in American history — and for nearly a...