I’m still trying to gather the facts. But on your post, I did go look. They said he opened the front door. The screen door was closed and he shot.
So the DOOR was OPEN, the SCREEN, was CLOSED.
Yes. HE opened the door. The screen was locked, and there is apparently no evidence that she tried to open it. It will be very hard for him to argue that he reasonably feared imminent death or serious bodily harm when he opened the door to the supposed threat.