UFO Enthusiast vanishes leaving only coded writings behind
UFO enthusiast vanishes, leaving behind a room full of coded writings http://nypost.com/2017/04/05/student-obsessed-with-aliens-vanishes-leaving-behind-books-written-in-code/
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How 1,600 People Went Missing from US Public Lands Without a Trace
https://www.outsideonline.com/2164446/leave-no-trace http://www.unsilentmajoritynews.com/how-do-1100-people-vanish-in-u-s-national-parks-without-any-publicity/
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