Assassination of Martin Luther King

From Tardis Wiki, the free Doctor Who reference
Assassination of Martin Luther King

Martin Luther King was fatally shot in an assassination that occurred in 1968; (PROSE: The Also People) it led to many riots in the United States of America. (AUDIO: The Age of Revolution)

Bernice Summerfield once had a dream where she was debating whether humans were evil with a Cyberman, a Dalek, a Sontaran, and Kadiatu Lethbridge-Stewart; the Cyberman brought up Martin Luther King's assassination as an example of humanity's freedom of choice allowing for conflicting moralities. (PROSE: The Also People)