'Slender Man' Attacker, Who Stabbed Friend 19 Times to Please the Fictional Character, Released Early from Mental Facility
The case stems from a 2014 incident when Geyser, then 12, stabbed classmate Payton Leutner 19 times during a sleepover in an attempt to please the fictional internet character "Slender Man." Geyser and co-defendant Anissa Weier had lured Leutner into the woods under the pretense of playing hide-and-seek.