You’re doing a lot of mental gymnastics to make this make sense from an accidental perspective. You’ve made up your mind that it was a mistaken intruder.

Me, personally? I have no clue whether he did or didn’t. And considering only he can know that for sure, I think that’s the only reasonable conclusion you can draw.

I certainly have no interest in debating all of these hypothetical motives he could have had.

1. Easy excuse to make, hard to rebut.

2. You don’t need a motive, it just helps and could have helped cast doubt on #1.

3. If there’s no reason to risk it if you’re trying to murder your girlfriend there’s no reason to risk it against an attacker.

I don’t really care about this case all that much. All of the unknowns make it confounding more than interesting.