(WJZ/AP) Lusby, MD WJZ.COM has learned that a 78 year-old man died after being attacked by a dog outside his home in Lusby, Calvert County. The Calvert County Sheriff's department responded to the attack at about 1:30PM. Bob Hampshire, of Calvert County Public Safety, says the victim had no visible bite wounds. He says the man has a medical history and was taking medication to thin his blood. The man was pronounced dead at the scene. The cause of death is unclear. Investigators are awaiting a report from the medical examiner. It appears that only one dog was involved in...