Something else that has been bothering me about this report.
The officer entered the house, looked at the girlfriend, shoots the guy and leaves.
Lets say everything else is OK with the scenario leading up to this part of the encounter... Why would he just look at her and not order her to the floor? Order her to raise her hands? Tell her not to move?
Nothing in any training I have ever had taught me to ignore a possible threat. If I were chasing an armed man into a house/apartment, I would be concerned for my safety and anyone I found there would be put under control.
This just sounds more and more like a case of road rage taken to a wrong, disastrous level.
Inside Every Bright Idea Is The 50% Probability Of A Disaster Waiting To Happen.