Sure, when you total all the sparsely-populated rural areas where people usually don't have next-door neighbors in walking distance, but not in the metro areas where people actually live together. As a proportion of the population, Atlanta's black demographics have shifted from 60% in 2000 to 55% in 2010, but that's of the TOTAL. White people aren't 100% of the remaining population, so the black population still represents a significant majority.
Macon area, where this actually took place, is outside the Atlanta GMA. The racial makeup of the city was 67.94% African American, 28.56% White,
Where this happened, like most Georgia cities and metro areas, they were NOT a minority.