Yes I read the report, I have also read all of the news articles...so, if a business owner walks in on his own property to investigate you in an unmarked car, you would yell at him to get on the ground before you even asked who that person was???? (that probably looked like he just got out of bed)
If I was in uniform, in my car, and someone approached me with a gun, refused commands and then reached for that weapon, I would shoot him too. The deputy was in uniform, identified himself multiple times, and fired only after the person reached for a weapon. What is the problem here? What am I missing? I read through all that and I don't see the issue.