A 33-year-old man is dead after he was fatally struck by a car when he ran into traffic chasing after a dog. The incident occurred at approximately 1 p.m. on Monday afternoon in Kingsport, Tennessee -- about 100 miles northeast of Knoxville -- when the Kingsport Police Department Traffic Unit responded to a call regarding a motor vehicle striking a pedestrian as it travelled north on Lynn Garden Drive, authorities said. It is unclear if the dog belonged to Johnson or what the circumstances were surrounding the incident and how the dog managed to get loose in the first place.