What a sad, sad story. 

While BLM probably will disagree, I think one of the problems with the police in the U.S. is they tend to have the attitude, "Shoot first and ask questions later". 

So "being white" isn't exactly a 'Get-of-Jail Free Card'. 

I've never had any interactions with the police when I've visited the U.S. But if I did, I would pay very close attention to what they are saying and do exactly what they are telling me to do.