D. B. Cooper, , North Star Editions, Arnold Ringstad,History/United States/20th Century,JUVENILE NONFICTION, airplane hijackers; famous criminals and heists; stolen money; skydiving and parachutes; FBI investigations; unsolved cases and crimes; hi-lo books; educational nonfiction for reluctant readers; conspiracy theories and urban legends; mysterious disappearances,, Unsolved Mysteries, United States, en-UShttps://northstareditions.comairplane hijackers; famous criminals and heists; stolen money; skydiving and parachutes; FBI investigations; unsolved cases and crimes; hi-lo books; educational nonfiction for reluctant readers; conspiracy theories and urban legends; mysterious disappearances, [BLURB],[CITY],,books, ebooks, biblet, Book2look