In 1989 New York central park jogger rape case is an excellent example of guilty till proven innocent and bad policing to quickly find black scapegoats.
Dozens of rap record labels over the past 30 years encouraged rappers to use the N word noun in their music to program both black and white humans that the derogatory word is accepted.
While over 70% of rap music is purchased by white humans, the word helps keep a negative dark shadow over the black race.