It wouldn't surprise me in the least that the "leadership" of the Black Clad Cretins have planned to have some of their Useful Idiots shot to death by an assault victim during a rampage. That will be an excuse to ramp up the violence even more by arming the UI's. Phase II.
As for the police backing off, that is nothing new. We had a riot after MLK was murdered and we had several officers nearby and in view when rioters dragged a man and his wife from their car and beat them within an inch of their lives. Command officers held back the officers who went to help because "We don't want to make things worse." I wasn't nearby but heard the orders and was flabbergasted.