BULLHEAD CITY, Ariz. (AP) — Authorities in Bullhead City are investigating the death of a 1-year-old boy. Bullhead City police spokeswoman Emily Fromelt says the child was taken to an area hospital late Wednesday night by the mother and her boyfriend. The baby was then flown to a Sunrise Hospital in Las Vegas in critical condition. He succumbed to his injuries early Thursday. Fromelt says police are not releasing further details.