Dogs of any breed are considered a man’s bestfriend. A nature of a dog’s attitude is a reflection of how his owner has brought him up.
A dog with a hugely bad reputation is the pitbull. Pitbulls are known for their aggressive nature and are often used as fighter dogs.
Within the video, the jaw power and the manner of shaking and dragging can suggest the possibility that the dog is a pitbull. Many locals try to stray the dog away from its victim but it does comeback. In the end, after a few hits, the dog had run away.