Do you have links to it, proof it's fake, the related death, etc.?
(Attempted to Google "Fargo treasure" but it appeared there were a number of different Fargo treasures.)
EDIT: Link http://www.telegraph.co.uk/film/kumiko-the-treasure-hunter/t...
Yes, I would hope it's obvious that a fictional treasure is not real. Difference between your example and mine is the source is claiming it's real, aware people are dying, and spending money to help look for missing people.