GT40FIED,
This must really suck for you...but if I were you, I would not get involved because it is up to your brother to decided the right thing to do in his situation. I am glad that you have some morals on hitting women...which you shouldn't...however...I think you should just be there for your brother...and just give him the right brotherly advice when and if he needs it. Did you tell him that you kow the information you know? Maybe you should reconfirm with him the information you know.
I hope this helps,
