This is tragic, and it's good that the culprit quickly met justice.
But before the tarring and feathering of Black Lives Matter, it's worth pointing out that not only is there no increase in police deaths this year (82 January through August this year, compared to 84, 78, and 85 the previous 3 years), we're in a decades-long decrease in police deaths. I know certain media has been trying to push a "war on cops" narrative, but in reality there is no reason to believe that BLM is leading people to kill police, and there is certainly no increase in police deaths compared to a typical year. Sometimes, criminals shoot at cops. It's a terrible thing, and as expected those who do so face justice.
So are you saying more cops are hunting down and killing black men, which the Black Lives matters group was born from? Or could it be that people, white and black get killed by cops each year? You have excused every piece of **** that has murdered a cop, and still think Michael Brown was an innocent angel.