Yeah, I am extremely surprised by this.
I am not. An increasing bulk of cops have become brownshirts with no regard for non-cops. They have nearly perfected the we/them mindset and will become increasingly dangerous as they acquire recent military cast off equipment as well as a military view of us as the enemy.
I understand your concern regarding law enforcement, and how they are becoming a paramilitary like, with the, "Us vs them" attitude, however I am just looking at the specific circumstances of this particular case.
Again, no shoving match, no fight, in fact these two really did not know each other prior to the shooting...This was a sports bar that had nearly 25 people in it, during happy hour...It was not late, and the victim had no weapon.
Trust me, this particular case/incident is totally off the charts, and very disturbing.
Like a child who gies from abusing animals to killing people the police have gone from casually shooting the family dog who posed no threat to casually shooting people who pose no threat. Remember the kid face down on the subway siding two or so years ago shot point blank by a transit cop? This is perhaps disturbing but no longer surprising. Cops are more out of control than in control and they no longer see taxpayers as their boss.