If this was a nut who was threatening bystanders for no good reason with his gun, it’s understandable he got what he got. Still it’s sad that a taser, etc. which is intended for situations like this, was not available. Drunken brawler?
I doubt that a taser is a good weapon to use against a man with a gun.
A taser would be appropriate when dealing with a really violent bare handed fighter who could overwhelm the cop if not stopped.
FTA: Hernandez went to investigate, and after identifying himself as a deputy,
Maybe this guy was in plain cloths and only had his side arm?