4 dead at Michigan fest; 3 were exposed to carbon monoxide At least four people died while attending a weekend music festival in southern Michigan, including three men who likely succumbed to carbon monoxide exposure inside a travel trailer, authorities said 16 hours ago|United States 4 Michigan festivalgoers dead; 3 exposed to carbon monoxide BROOKLYN, Mich. (AP) — At least four people died while attending a weekend country music festival in southern Michigan, including three men who likely succumbed to carbon monoxide exposure inside a travel trailer, authorities said Saturday.Two more men were in critical condition at a hospital from the same exposure, the Lenawee County sheriff’s office said. The five men were in their early 20s.A concerned friend called 911 around 1:30 p.m. when …