Is it possible that the guy was so dumb he didn't know what the word "rebuke" meant? I'm not making excuses because there were many opportunities for a different outcome by both officers and I am just trying to understand his very irrational and bizarre action of threatening her after she spoke calmly of her desire to criticize him. She had a pot of water near the sink because of his actions and she criticized him "I rebuke you in the name of Jesus." There's no other word in that phrase that he might not know the meaning of except rebuke. He then screams, "You better fucking not or I'll shoot you in the fucking face," meaning he interpreted her words, character, and actions in sum as a physical threat....unless you think he misheard her or just wanted to kill her.
At that point the other officer could have calmed him down or even yelled at him to stop. He could of course also regained his senses... or de-escalated the situation he created. He chose to only use his gun when he could have easily dodged his imagined enemy or used other non-lethal means to do whatever to get himself out of the situation he irrationally imaged he was in. "What else could we do?" That's denialism that comes from mental trauma of knowing you fucked up but your brain tries to make excuses. Speaking of the water, "Hey look, it came right to our feet, too." What next, is he going to say something about how she could have attacked him with the oven mitts?
This video should make one wonder how prevalent this kind of shit was before we got a small taste of transparency from required body cam videos. Prior to that, there were always stories about victims, and those who supported the victims were viewed as radical crazy people. But of course there are still many people who continue to make excuses even when they see murder right in front of them...