More than four decades after the Greensboro Massacre, the city formally apologizes for the role of city police. On Nov. 3, 1979, a caravan of Ku Klux Klansmen and American Nazi Party members pulled out weapons and killed five people protesting at an anti-Klan march in Greensboro. Ten people were injured, and the police were nowhere to be found — even though they knew a violent attack was coming.