BRUNSWICK, Md. - Authorities say a two-year-old Virginia boy died after being bitten by a pit bull-mastiff mix at a family gathering in Maryland. The child's family says the 2-year-old lives in Fauquier County and was in Maryland for a birthday celebration for his grandmother. The boy had been playing with the dog all day long, and as the family was getting ready to leave, the dog, which belonged to the grandmother, attacked the boy. The boy’s family told FOX 5 the dog was not provoked, and it’s unclear why exactly it bit the child. "We don’t know. He just...