Slender Man Stabbing Suspect Morgan Geyser Missing After Cutting Electronic Monitor in Wisconsin

Morgan Geyser, Slender Man Stabbing Figure, Disappears from Wisconsin Group Home

Authorities in Wisconsin have launched a search for Morgan Geyser, 23, a woman known for her involvement in the harrowing 2014 Slender Man stabbing. Geyser, who had been granted conditional release from the Winnebago Mental Health Institute earlier this year and was residing in a supervised group home, is now unaccounted for after reportedly disabling and removing an electronic monitoring device.

Urgent Public Alert Issued by Madison Police

The Madison police department issued an urgent alert on Sunday, November 23, 2025, detailing Geyser's last known whereabouts. She was reportedly seen around 8 p.m. on Saturday evening in the company of an adult acquaintance. The public is strongly advised to exercise caution and contact 911 immediately if they encounter Geyser, as she has cut off her Department of Corrections monitoring bracelet, raising concerns about her current status and potential risks.

Revisiting the Tragic 2014 Slender Man Attack

Geyser's name is inextricably linked to a disturbing incident that occurred when she was just 12 years old. In 2014, she, alongside her childhood friend Anissa Weier, lured their classmate, Payton Leutner, into a wooded area of a suburban Milwaukee park following a sleepover. What unfolded was a brutal assault where Geyser stabbed Leutner more than a dozen times, with Weier reportedly encouraging the act. Miraculously, Leutner survived the horrific ordeal after crawling for help.

The Motive: Appeasing an Online Boogeyman

During subsequent investigations, both girls confessed that their motive for the attack was to appease the fictitious online horror character known as Slender Man. They genuinely believed that by committing the violent act, they would become Slender Man's dedicated servants and prevent him from inflicting harm upon their families. Slender Man, a mysterious, tall, thin, faceless figure, originated as an internet meme created by Eric Knudson in 2009 through manipulated images. He quickly grew into a pervasive cultural phenomenon, making appearances in video games, online narratives, and even a 2018 feature film.

Legal Proceedings and Previous Releases

In 2018, Geyser entered a plea of guilty to attempted first-degree intentional homicide. As part of a plea agreement with prosecutors that allowed her to avoid a prison sentence, she was committed to a psychiatric institute for long-term treatment. Her co-conspirator, Anissa Weier, faced similar legal consequences, pleading guilty to attempted second-degree intentional homicide and eventually being released from a psychiatric center in 2021. Geyser's recent disappearance highlights the ongoing challenges in managing and reintegrating individuals with such complex histories back into society, and it prompts questions regarding the efficacy of current monitoring protocols.