I agree the airman was young and dumb. I've been a young and dumb airman myself. Being an old military retiree, I know a lot more about the tactics of opening the front door.Most of y’all know I’m retired Air Force. Pretty much all I’ve seen is the body cam video without any talking head analysis.
From a tactical perspective, it appears the deputy was responding to a domestic dispute. The guy and girl that deputy encountered in the apartment complex entry area did no favors feeding old hearsay tales to the deputy that was irrelevant to the situation at hand, but started the mindset this would be high threat.
The deputy had a second officer on the way and, as far as I can tell, did not hear anything outside the apartment to necessitate immediate intervention.
As far as the airman is concerned, if somebody is pounding on my door while I’m on my phone, the last thing I’m interested in is grabbing a gun and answering the door; I’m just going to ignore that shit if I’m not expecting somebody. If I’m going to answer the door, I need to get off the phone and use the GD peephole before I open it.
Door opens, deputy sees the gun, adrenaline dump happens and bang bang bang then “drop the gun”. Piss poor decision making there, but given a 911 call and the info provided by the female, he had to investigate, so there’s no pre-meditated intent to murder.
Given a gun in hand at the doorway, use of deadly force criteria is met from a legal perspective although department policy will come into play.
Shitty things happen when people do stupid things and the deputy and airmen both did some stupid things.
But...before I dismiss the incident as "both did stupid things," I have to ask: Why do we expect ordinary citizens to be as trained and knowledgeable of tactical situations as professional police?