The assassination on April 4, 1968, of Martin Luther King, Jr., president of the Southern Christian Leadership Conference, triggered a massive manhunt culminating in the arrest of James Earl Ray. The 44,000-page case file of the Federal Bureau of Investigation documents the bureau’s role in finding Ray and obtaining his conviction. The file also includes background information amassed by the FBI on Dr. King’s social activism. This archive is of particular interest to students of the civil rights movement and of the continuing controversy surrounding Dr. King’s murder.