What's the Difference?

I've heard people complaining that Tiger's wife Elin did not get arrested for domestic violence. Supposedly she beat him to a crisp for stepping out on her while Chris did the same to Rhianna and got 5 years probation, etc. Is there a difference in the two cases here? Neither women pressed charges but one man was convicted. What is this saying? Does white people in general get away with stuff while blacks get their hands smacked for everything. Don't get me wrong domestic violence is wrong....but in Tiger's case- I kinda think his wife should have beat his butt for being unfaithful and not the man she thought he was. What do you say?