From the articles, his bathroom was the only room without bars on the windows and a ladder outside.

I would assume there would be blood splatter to confirm she was sitting on the toilet.

The story sounds incredibly far fetched. If he really thought it was an intruder though, I feel horrible for him though.
Originally Posted by CurlyCanadian
If I thought an intruder was locked in my bathroom, I would grab whoever else was in the house with me and run outside. I don't think I would have the stomach to blow someone's head off like that unless I was literally backed into a corner.

But I'm a girl

Maybe men don't think like that?