The cops jumpiness around black people is most likely the result of the fact that the 3% of the population that comprises young black males commit about 40% of all crime.
That's no excuse here, especially after the man made it clear he had a license. That alone should have reassured the officer, but for anyone contemplating getting a concealed carry license, I urge them to get one of these and show it first.
It will move the officer in the direction of giving someone the benefit of the doubt that he might not otherwise use.
My guess is that the cop didnt hear or believe he had a CCL, so when he moved toward the gun he started firing. That or the witness’ account is false.