You were lucky. Pit Bulls usually press their attack, impervious to pain. SHOOT THEM ALL.
Probably a mix. Most "pits" are pit mixes.
County Humane agencies, animal "rescue" organizations and private "No Kill" adoption groups seem to stay literally at capacity with Pit bull and like breed mixes. Many also seem to be prone to avoiding directly using the Pit Bull and like breed names in the descriptions of mixed breed dogs available for adoption.
