 On June 7, 1963, Mayor Thompson effectively issued an injunction to the NAACP, CORE, and Tougaloo College faculty by banning parades and mass demonstrations without a permit.On Friday, June 7, the coalition's strategy committee ignored the injunction and continued the blitzkrieg, with dozens of demonstrators arrested.That night, singer Lena Horne and black comedian Dick Gregory came to Jackson to host a benefit concert attended by most of black community in Jackson.