I was a bit curious, and with some minimal research that went beyond the obvious first search results, I found a couple of interesting articles from legitimate sources. Links are posted below. Basically, it seems that no one in Nome agrees with the movie producers, no one on the AK psychiatry board has heard of Abigail Tyler, and this supposed woman never lived in Nome. Sites that were up earlier this month, substantiating the claims are now pulled, probably because they were shown to be hoaxes. I'm not against seeing the movie... but I am against misleading people about it. It seems that the FBI decided that the disappearances that did happen were most likely due to alcohol as Nome is a "wet" city, amongst many "dry" ones.
Rural Alaska Blog: The Village
Anchorage Daily News