Teen in 'Slender Man' case pleads not guilty due to mental illness
Morgan Geyser and Anissa Weier are accused of stabbing a 12-year-old girl while attempting to summon 'Slender Man'
5 things you probably didn't know about the Slender Man stabbing
A new documentary uses the Slender Man stabbing to investigate how the Internet can affect children.
'The Black Tapes' is a 'Serial'-style podcast that will scare your socks off
If you like being terrified, this horror documentary series is definitely the podcast for you.