AMERICAN DEFENSE MFG PRODUCTS LLC issued the following announcement.
5-year-old dies in accident at Calumet County racetrack
TOWN OF CHILTON, Wis. — A 5-year-old has died in an accident at a racetrack in Calumet County.
The boy died Sunday afternoon when he fell off a youth motorcycle at Gravity Park Speedway in the Town of Chilton and was struck by an 18-year-old man operating an all-terrain vehicle, according to sheriff's officials.
The death remains under investigation. Names have not been released.
Original source here.