In this highly-engaging Tulsa Race Massacre CSI investigation, students investigate the causes of the 1921 Tulsa Race Massacre in Tulsa, Oklahoma. Students take on the role of detectives as they seek to uncover the history behind the infamous Tulsa Race Massacre. This investigation engages students about the Greenwood District, "Black Wall Street," Tulsa segregation, the rise of lynchings, and the elevator incident that prompted the violence. This resource is included in my CSI American Histor