Come on MM, what did she do threaten him with a tooth brush? My guess is an argument, he bashes her head in with a cricket bat, realizes what he has done. Comes up with a cover story. Shuts the door and shoots her through the door, etc. etc. etc.
He didn't have a mark on him, she was effectively killed twice over. Sure I don't know all the facts, but come on you don't need to be a rocket scientist to figure this one out. I am sure he will be found guilty when he comes to trial. That is of course unless we get a repeat of the OJ Simpson farce.