It would be more accurate to say that Black Lies Matter is directly responsible for the executions of police officers, seeing as they chanted such things as death to pigs and What do we want? Dead cops When do we want them? Now!
The left must be beside itself with happiness over this shooting, as it is taking away from the developing story of unprovoked violence by antifa, which is the lefts baby, whether or not they admit it.
The antifa crazies will be back in the news big time on November 4th, when the crazies try to overthrow the U.S. government.