Going by the Photo in the FULL story it looks like a pit bull or staffy, both dangerous dogs. I had a neighbour in OZ while I was living on a Cattle Station, he used to go out shooting 'Roos' one day he shot a Roo his staffy dog jumped off the back of his ute and viciously ripped it apart, he was so shocked, when he got home he shot the dog. His wife had recently given birth to a son, and that incident had freaked him out.