"When Martin Luther King Jr. landed in Memphis on April 3, 1968, no one knew he would be killed the next day. When he gave his famous 'I've Been to the Mountaintop' speech, no one knew it would be his last. And when the world learned of his death, no one knew exactly how deeply his legacy would live on. Interwoven with excerpts from 'I've Been to the Mountaintop' and 'Precious Lord, Take My Hand' (the song played at King's funeral), The Day King Died...