Exploring an infamous crime from the 1970's and how it was portrayed between the best-selling book and the big screen. MERCH: We've got it! SHOP NOW: bzfd.it/2MDBk2d Credits: www.buzzfeed.com/bfmp/videos/107593 MUSIC Licensed via Audio Network SFX Provided By AudioBlocks (www.audioblocks.com) The Reveal_Full Licensed via Warner Chappell Production Music Inc. Welcome to the BuzzFeed Unsolved Network! This channel is your one-stop destination for all things mystery, conspiracy, supernatural, true crime, and everything in between. Subscribe here: bit.ly/2zuaR06. STILLS Oil barrel and tap. Crude oil production concept, 3D rendering isolated on white background AlexLMX/Getty Images Crisis recession unemployment directional sign alexsl/Getty Images Scary Kid's room 5 Daemon Barzai/Getty Images Scary Kid's room 4 Daemon Barzai/Getty Images Green and blue dark texture RobertBreitpaul/Getty Images Hog head vector, pig head, hog mascot, pig character ednal/Getty Images White brick public building with high columns IconicBestiary/Getty Images Money Growth Graph on a chalk board fotopoly/Getty Images Businessman ready for higher interest rates CreativaImages/Getty Images Forensic Evidence SEInnovation/Getty Images Inside an old wooden barn GeoffHardy/Getty Images Old manilla envelope LesByerley/Getty Images Amityville Horror House Paul Hawthorne/Getty Images Amityville Horror House Paul Hawthorne/Getty Images Amityville Horror House Paul Hawthorne/Getty Images Amityville Horror House Paul Hawthorne/Getty Images Amityville Horror House Paul Hawthorne/Getty Images VIDEO Footage provided by VideoBlocks (vblocks.com/x/BuzzFeedYouTube) Blood flowing down the leg, it waswashed with water into the sewer. The wounded man is treating the wound. Denis Medvedev/Getty Images Background mask with damaged frame effect of old film with scratches and flicker 4k Alexander Bashkirov/Getty Images 15 horror grunge transitions. Great for your horror movie vitanovski/Getty Images Auto mechanic working on car engine in mechanics garage. close-up shot Yaraslau Mikheyeu/Getty Images Passing Alien Organism With Slime Dripping RockfordMedia/Getty Images Delusional psychotic disorder concept stevanovicigor/Getty Images Stretching and rupture of ligaments and tendons during prolonged muscle load drgost/Getty Images Stretching and rupture of ligaments and tendons during prolonged muscle load drgost/Getty Images Animal tracks in snow. Winter season. Voyagerix/Getty Images Close-up of young Caucasian couple's hands on top of each other. Family at psychologist's office during consultation. Blurred male psychologist talking at the background. Beginning of couples therapy. FILMWORLD/Getty Images Writer typing on a typewriter, taken from side. Vintage scene ASerushkov/Getty Images Typewriter device: a man types on a typewriter, the mechanism moves. ASerushkov/Getty Images Party character for Halloween yes/Getty Images Profile View Cocking 12-Gauge Shotgun OrlowskiDesigns/Getty Images Old swaying lamp hanging from ceiling of stairs of creepy haunted house. Ghost, Spirit or Demon. Spooky Old objects. Old chestnut wood and old scary wallpaper. Shot on RED EPIC 6K. Kevin Mendiboure/Getty Images Climbing spooky stairs in darkness. shanghaiguy/Getty Images Moving through spooky hallway. shanghaiguy/Getty Images Silhouette of drunk man with bottle in hand entering room, domestic violence Motortion/Getty Images Silhouette of couple arguing behind door, drunk man with bottle slapping wife Motortion/Getty Images Car Burns On Road. Micro Vovk/Getty Images Document Papers Burn In Fire - Generic Content RockfordMedia/Getty Images Male criminals coming dark apartment with flashlight, private property security Motortion/Getty Images Old House Stairway Nektarstock/Getty Images Time showing between 03:00 and 03:59 on big digital clock opal2/Getty Images Retro writer desk with typewriter cyano66/Getty Images Pray with rosary and a bible pboti/Getty Images Closeup hand pouring alcohol from bottle in glass, drinking and putting on table Non-Exclusive/Getty Images Smoking Barrel of rifle. Shotgun shells being removed from shotgun with smoke coming out. Macro, super close-up view. 4k Kristina Kokhanova/Getty Images Action Film Elements - Generic Rifle Muzzle flashes over black for Luma Matte Joseph Kelly/Getty Images Female reading a holy bible book at night StockGood/Getty Images Walking down flight of stairs in the house steadicam shot SaddamStock/Getty Images Car sank in the lake Pro2sound/Getty Images Senior lumberjack cutting tree PointImages/Getty Images Killing Flies in the Window Pane Using a Fly Swatter aetb/Getty Images Brunette woman looking at skin in mirror gali17/Getty Images CHAPTER 9 to 10. Typing a book. darek_krzywanski/Getty Images Movie Projector Screen Loop (HD) jamesbenet/Getty Images Wind blowing through the curtains in an old desolate building Motortion/Getty Images