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A true crime filmmaker said she was inspired by the heroic efforts of online sleuths who spent years trying to identify a hiker after his emaciated corpse was found alone in the woods.

Emmy-winning director Patricia Gillespies new documentary, They Called Him Mostly Harmless, opens with the finding of a mans body in a tent near the Florida Everglades in July 2018. There were no obvious injuries or evidence that he had used drugs. It looked like he might have starved to death, but he had snacks on hand and $3,600 in cash along with two notebooks that seemed to be filled with an indecipherable code in his backpack. He didnt have identification, credit cards or even a cellphone.