So sorry to hear of your little Aggie's horrible fate.

The pit bull owners are the real villians in this tragic story. How could they be responsible for little Aggie's death and then be rude to her owners? Some people should never be allowed to have dogs.
I do believe this is another example of why man should never have created this breed though. Man set out to create a killing machine and now without the best of guidance, training and constant supervision they do revert to killing machines. Too many take on the ownership without being willing to give all that is required. Now all mankind and animalkind pays the price. Including the pit bull who should definately be put down now, but was never taught any better than to fulfull its original mission.