In Mississippi, blacks have been prevented from registering and therefore, denied access to vote by the state's political leadership. In the state capital of Jackson, NAACP state field secretary Medgar Evers organized a boycott of downtown stores, leading to hundreds of protesters being arrested. In Oxford, Ohio, Freedom Summer recruits train and then leave for Mississippi on June 20th, 1964. The next day, three organizers, all under age 25, disappear while investigating a church burning. The bodies of James Chaney, a black Mississippian, and Andrew Goodman and Michael Schwerner, two white Northerners, will be found buried together on August 4th. Meanwhile, volunteers register voters for a new political party, the Mississippi Freedom Democratic Party (MFDP); over 60,000 people join.