Leutner was stabbed 19 times by Geyser, who was aided by Anissa Weier, in a wooded area near David's Park in Waukesha. All three girls were 12 years old at the time.

HBO’s new documentary, “Beware the Slenderman,” follows the true story of the 2014 Slender Man stabbing and considers the issues created through the immediacy of the internet. It tells the story of ...

Four fifth-grade girls in Arizona devised a plot to kill a male classmate and make it look like a suicide – with one of the ...

The Slender Man quickly became an internet phenomenon and went viral. This rise in popularity spawned numerous works of fan fiction, cosplays, online fiction and more.