Waukesha

Beware the Slenderman is an HBO documentary about the 2014 attempted murder of 12-year-old Payton Leutner by two classmates who believed in the Slender Man internet myth.

The Slender Man Stabbing is a 2014 attempted murder case in which two 12-year-old girls stabbed their classmate 19 times in Waukesha, Wisconsin, to become proxies of a fictional internet character.