Pit-bull. Enuff said.
There are thousands of really good, sweet dogs that are euthanized every year, so why would anyone want this one to live? Kill it already. It has shown that it will attack a kid, so get rid of it. People have gone nuts about pets. They keep ones alive that are dying of cancer, legless, sightless, whatever as if they were human. Meanwhile healthy animals are being put to sleep. It makes no sense. Resources are limited. Use them to keep the best animals alive, not the ones who are physically crippled or sick, and certainly not the ones with serious behavior concerns. People are to manage animals, not treat them as if they were human.
And I adore dogs. But dogs are not people.