Look who fucked up the up the entire graduation ceremony by calling an end to the proceedings before the Valedictorian gave their speech, Racist white bitch.
I read in the comments of the video, so who knows how accurate this is: The lady in the video mistakenly ended the ceremony before the valedictorian gave their speech, and then ran up there to call people in after many had already left. She was embarrassed for making the mistake and lashed out at the black people in the audience to deflect from the fact that she ruined a ceremony that that these kids have been anticipating their whole life. She showed her true colors is all. Apparently her relationship with the black student body had been strained up to that point to say the least.