Missing 411 is the work of David Paulides, a former police officer who discovered that dozens of people go missing from our national parks every year without leaving any real evidence as to what happened to them. In this episode, we will explore three such cases that defy common sense and law enforcement explanation. It's truly a unique mystery.

https://www.canammissing.com/missing_411.html

https://en.wikipedia.org/wiki/David_Paulides

Paulides, David, Missing 411: Eastern United States (CreateSpace 2011)

http://www.abovetopsecret.com/forum/thread972658/pg1/

https://www.reddit.com/r/Missing411/wiki/frequently-asked-questions#wiki_about_missing_411

https://mysteriousuniverse.org/2017/06/some-very-strange-information-on-the-bizarre-vanishing-of-dennis-martin/

http://raven-talesoftheweird.blogspot.com/2012/09/missing-persons.html

https://www.nps.gov/aboutus/foia/upload/1969_GRSM_DennisMartin_dissapearance_REDACTED.pdf

https://www.huffpost.com/entry/lost-how-a-three-year-old_b_198883

https://www.bemidjipioneer.com/news/218901-northern-minnesota-effort-search-kory-kelly-brought-out-hundreds-volunteers

https://www.newspapers.com/clip/11430510/kory_kelly_missing_plus_one_more/

https://www.newspapers.com/image/224498390/?clipping_id=10778500