You can hear the victim clearly saying he isn't reaching for anything.
I believe he said he wasn't reaching for "it" (meaning the gun).
But he was reaching for "something" (apparently his concealed carry license).
When a cop is urgently telling you not to reach for the gun, you should keep your hands visible and not reach for anything at all.
Yanez wasn't qualified mentally to be in the field and obviously didn't cut it as a cop.
Based on what? Any other cop would also have opened fire if they thought someone was reaching for a gun.
"Officer safety" has become a buzzword for killing people. It's a dangerous job, which means sometimes you might be in danger. You can't shoot everyone because you are in fear.
People are allowed to shoot when they have a reasonable belief that their lives are in danger.