Sure wish George Floyd had been presumed innocent until adjudged guilty, but, sadly, due to his being black, he never got the chance. I may not always agree with Marley K., but she is definitely not a racialist mobster.
"Innocent until 'proven' guilty" is a legal concept, but it doesn't encompass real guilt or innocence. We know what Officer Chauvin did. We saw it. We know that no one else knelt on George Floyd's neck and killed him. The law means "not convicted of a crime." It doesn't even mean "proven" guilty, as many factually innocent people have been "adjudged" as guilty, but not proven so.