Oh Debi,
Been there, done that. It is so cruel what dogs can do. I am unsure where Vanessa is coming from. . You kill the dog first, and think about it later, David could have been the one attacked if he would have tried to move the dog to a stall to call animal control :new_2gunsfiring_v1: .
My assumption is that Tai is ok? I sure hope so. I know in your care, everything will be done to Mat and Nat. to make them comfortable.
I would also cover them with both kinds of broad spectrum antibiotics, one for Gram positive, and one for Gram negative. That way you can get either type of bacteria.
If I can help out in any way, just let me know, I am here for ya'll.