I'm so sad to hear this and I know exactly how you feel.

I've never talked about this before because I feel so guilty, but we had a very similar thing happen years ago when we had our RB chow Keisha & our female rottweiler (Harley). There was nothing that happened to provoke the attack...it just happened. Mark also got bit by Keisha, she was thinking he was Harley. We were lucky and my parents were coming to visit from SC and took her home with them.

I know your heart is breaking and I hope that your brother's friend is able to take her so you can still see her whenever you want.

I hope that every one's injuries aren't too bad and heal fast.

Many (((HUGS))) headed your way.