Murder in Mississippi Share: Copy Link Missing poster. Credit: FBI. On June 21, 1964 ... Prosecutors brought the charges before a federal grand jury, which indicted 18 men in January 1965.

Murder in Mississippi Share: Copy Link Missing poster. Credit: FBI. On June 21, 1964 ... Ku Klux Klan membership in Mississippi was soaring in 1964 -- with membership reaching more than 10,000.