The use of lethal force by police officers as a first resort, rather than a last one, has reached a point of ridiculousness. Pissed off cops don't have a justification for summary executions and cops who get pissed off because their orders aren't immediately satisfied need to find other ways to make a living.
And as the father of two deaf kids and a friend of many families with deaf children (white, black, and brown) who don't always respond immediately or appropriately, no matter their intentions, to instructions the willingness of so many to simply justify a killing based on a suspect's noncompliance is frightening, to say the least.