Another case where money doesn't buy brains. If he did knock her out, hope he gets a felony charge. No excuse to hit a female.
As a general rule a man shouldn't. Furthermore, a man with a brain in his head stays out of relationships with women that make him mad enough to hit her, however they do it. With that said, we are hearing that they both hit each other. Men should not hit women as a general rule but if she hit him (especially if she hit him first) she's opening herself up to the possibility that she gets knocked out. That's not right or wrong, it's just reality. Please don't take this as me taking a side, we don't know enough to do that. Just saying that this may be a situation where no one is innocent.