The true story of the mysterious SOS sign in Japan fuels many's fears of getting lost and never found. 2 hikers get lost whilst hiking, but this is only the beginning. What they didn't know at the time was that they weren't the only ones lost in the woods. Another party was involved the whole time, but who? For more information, feel free to read up on this case:

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Matthew Hoffman aka "The Leaf Killer" changed the lives of the Hermann family and Stephanie Sprang forever. His twisted obsession with nature's natural growing entities (leaves) was used to cover the bodies of his victims. This is the story of The Leaf Killer.