Many white residents felt intimidated by the prosperity, growth, and size of "Black Wall Street." Not only was Greenwood, Tulsa expanding in population, but it was also expanding its physical boundaries, which eventually collided with the boundaries of white neighborhoods. According to several newspapers and articles at the time, there were reports of hateful letters sent to prominent business leaders within "Black Wall Street," which demanded that they stop overstepping their boundaries into the white segregated portion of Tulsa. White residents grew increasingly resentful about the wealth of the Greenwood community. The Tulsa Race Massacre of 1921 started when police accused a Black shoe shiner of assaulting a white woman.