My own gut feeling is that he didn't intend to kill her; that they had a  a row, she fled to the bathroom, he snatched up the gun and fired it at the door in a blind rage without any consideration - or evenreal  concept - of what the likely consequences would be. When he realised what he had done he became hysterical - hence the screaming.

I see it pretty much that way too She-ele

Katy the window was at least on a 2nd floor but had no bars and he said he noticed it was open

Did he live in a high security gated estate? I read yesterday if he called called security they would have been there in a very short amount of time.

10:23pm: "All the accused had to do was use his cell phone to call security", she said, which may have taken less time than the firing of the shots.

Judge Masipa