17 Disturbing Murder Cases That Will Keep You Awake For Days

    Read at your own risk.

    We asked the BuzzFeed Community to tell us about the most horrifying murder cases they've ever heard. Here are the terrifying results.

    🚨WARNING: This post contains highly disturbing and graphic content. Please continue at your own risk.🚨

    1. Jon Venables and Robert Thompson:

    2. Diane Downs:

    3. Dennis Nilsen:

    4. Katherine Knight:

    5. The Alphabet murders:

    6. Issei Sagawa:

    7. The Papin Sisters:

    8. Carl Tanzler:

    9. Gertrude Baniszewski:

    10. Tamara Samsonova, aka the "Granny Ripper:"

    11. Carl Panzram:

    12. Mary Bell:

    13. The Cleveland Torso Murderer:

    14. The Hello Kitty Murder:

    15. Edmund Kemper, aka the "Co-ed Killer:"

    16. Kenneth Troyer:

    17. And The Boy in the Box murder: