Agree blame the owner...The dog has been bred for fighting over the years and it's not really their fault. Blame the owner for deciding to own one.
Anyone who owns a powerful dog, be it pit bull or any other breed, must act as the pack leader. It doesn't matter what the dog has been bred to do. This dog attacked because it saw itself as the pack leader protecting its territory and pack. If the owner had been the pack leader, the dog would not have attacked unless told to. Submissive pack members only do what the leader tells them to do. They are not even allowed to eat until the pack leader says so.
Yes, I blame the ignorant owner.
A pit bull is a term referring to several breeds of dogs developed from the Old English Bulldog. Which breed do you specifically dislike...American Pit Bull Terrier, American Staffordshire Terrier, American Bulldog, Staffordshire Bull Terrier, English Bull Terrier.......or mixed breeds that include any of these breeds?