It looks like and sounds like the shooter shot three rounds and the guard shot at the same time the shooter fired his third round and went down like a sack of crap.
I have to say it was satsifying seeing their armed security take this murderer down.
Yes, I noticed that later after reviewing the video... the shooter was advancing toward the front of the Church and fired off a shot toward the people in front/person on stage just as he was hit in the head by the good guy’s bullet. I shudder to think what the shooter had in mind, and praise God that more innocents were not killed, thanks to the quick action and skill of the good guy.