And that's a sound justification.
I read that she broke a window and was the point man for the incursion into the secure area.
Given that there was an unknown amount of people in the building and an unknown amount of people were behind her attempting to breach the secure area with her, creating a bottleneck would seem to me the best way to keep the area secure as well as protect the VIPs.
I'll be honest, that is not a situation I would want to be in.
As I said I'm a reservist, not a "road dog" like you so this is speculation on my part. I just don't recall any mention of that officer being placed on administrative leave pending investigation.
I once had to shoot a dog. In addition to feeling very bad about it, it took me an hour to write the supplemental my shift supervisor wanted to justify shooting a citizen's dog in a suburban neighborhood. Even though said animal was off leash in a public street.
I would like to see the is dotted and ts crossed. If I have to justify shooting a dog, and LEOs have to justify using force on people who insist on resisting with violence for misdemeanors, shooting an unarmed veteran, albeit one was being stupid and engaging in criminal trespass, should follow standard form, no?
I'm not calling for his head, just a review of video evidence that corroborates his incident report and statements made to investigators.