Slender Man Stabbing Assailant Morgan Geyser Arrested in Posen, Illinois After Group Home Escape

Nov 24, 2025 United States United States Crime
Slender Man Stabbing Assailant Morgan Geyser Arrested in Posen, Illinois After Group Home Escape

Morgan Geyser, an assailant in the 2014 Slender Man stabbing, was apprehended in Posen, Illinois, after escaping from a Wisconsin group home.

Slender Man Stabbing Assailant Morgan Geyser Apprehended After Fleeing Group Home

Morgan Geyser, one of the individuals behind the infamous 2014 Slender Man stabbing case, has been apprehended in Posen, Illinois. Her arrest follows her reported escape from a mental health facility in Wisconsin, as confirmed by police.

The Shocking Slender Man Case

The Slender Man stabbing case sent shockwaves across the nation in May 2014. Geyser, along with co-defendant Anissa Weier, lured their classmate Payton Leutner into a wooded area in Waukesha, Wisconsin, and stabbed her 19 times. The motive, as later revealed, was to appease the fictional horror character known as Slender Man. Leutner miraculously survived the attack after crawling to a roadside where she was discovered by a cyclist.

Both Geyser and Weier were charged as adults in the case. Geyser, who was 12 at the time of the incident, was later found not guilty by reason of mental disease or defect. She was committed to the Wisconsin Department of Health Services and has been residing in a secure mental health facility.

Escape and Recapture in Illinois

Authorities confirmed that Geyser had recently fled from her assigned group home. A subsequent search led law enforcement to Posen, Illinois, a suburb southwest of Chicago, where she was located and taken into custody without further incident. Details surrounding her escape and the circumstances of her capture are still emerging, but officials emphasized the swift action taken to ensure public safety.

Ongoing Implications

Geyser's return to custody marks another chapter in a case that continues to highlight complex issues surrounding juvenile crime, mental health, and the influence of online mythologies.

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