The massive Hayman wildfire near Denver in 2002 was initially regarded as an accident caused by careless campers, but the case later turned into a hunt for an arsonist. CNN's Thelma Gutierrez reports on the unlikely suspect and how investigators uncovered minuscule clues in the expansive destruction caused by the blaze.
Watch Part II of the report:
Anderson Cooper goes beyond the headlines to tell stories from many points of view, so you can make up your own mind about the news. Tune in weeknights at 8 and 10 ET on CNN.
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