The point is, he was resisting arrest and an accident, yet the cop was charged because he was black. Her being white and a conservative means the cop was not charged.
Plus, when you aren't slowed down by that pesky due process stuff, you can dispense justice in an eyeblink. Didn't it happen on Sunday? And Wednesday they charged her. That DA's office is very efficient. I'm sure they were very thorough in their investigation too and aren't in any way making decisions based on fear of the rioters.