National Center for Missing Adults
Alexander Charles Rettinger
Montana authorities say a man whose body was found in a snowbank on the southern edge of Glacier National Park was an 18-year-old from Lake Forest, Ill., who had been reported missing in September.
Detectives say it appears Alexander Charles Rettinger committed suicide by huffing helium gas. A helium tank was found near his body, along with a train ticket from Chicago to Seattle.
Detectives say it looks like he got off the train in Essex sometime in late September.
Officials say a man who was out for a walk spotted Rettinger's body near the Izaak Walton Inn in Essex last week.
Due to the condition of the body from animal activity in the area, dental records were used to obtain the identity.
Copyright Associated Press / NBC Chicago