If I was being critical of the Prosecutor, he was nitpicking a lot to try to show he was lying, he'd ask him to explain something, then ask him again the next day and if he left a little detail out he'd jump on it.
You could be 100% telling the truth, but if you are asked enough times you will leave something out of your version, that's what was happening alot of the time if you ask me, OP should have stuck up for himself a bit more.
I think he's guilty though, he flipped his lid and she tried to escape him by locking herself in the bathroom, the fact he shot 4 times into a closed door, even if it was an intruder, is reckless to the extreme if you ask me anyway.