The pitbull needs to be put to sleep, before it attacks a child!
First let me say I am so sorry something so traumatic has happened to your sisters dog and family. Did your sister call the police and file a report? I think there is a new law in effect that states any dog that attacks another dog is to be put down. The law was put into effect because of dogs that are a danger to others and have attacked other dogs or people. Some people don't contact police then the dogs continue to be a problem. If she did not do so yet I would recommend it. If she did then the dog should have been taken into the pound if nothing else for the 7 or 10 days observation. If the dog did it once it will do it again.
Monte the Dog
Beck's sister just needs to move back to the Eastern part of the State - she didn't have any pitbulls in her previous neighborhood! We miss her!