I've known about this for awhile. Of course the American school system, public and private, won't teach this history. Unfortunately a lot black people don't know this and some don't care because "it happened so long ago and white people are different now." Things like this and the mass public lynchings may have happened 80-100 years ago but the perpetrators had children that watched or were told about this. Those children grew up to be the adults that you see in those black and white news clips that were attacking black people trying to integrate lunch counters and schools and bombing churches in the 50's and 60's. They're the judges, mayors, police chiefs, etc today. Their children and grandchildren are the cops, corporate CEO's, executives, doctors, etc that are your "friends" and lovers and the PAWGS some of us love today.