Slender Man stabbing: Morgan Geyser not listed in Waukesha County Jail

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Morgan Geyser

WAUKESHA, Wis. - Morgan Geyser, arrested in Illinois last month after she left her Madison group home, is no longer listed as being booked in the Waukesha County Jail as of Wednesday.

FOX6 News obtained a court document, dated Dec. 10, that lists the state-run Winnebago Mental Health Institute as Geyser's address. 

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Judge waives limit

In Court:

On Dec. 4, a Waukesha County judge approved waiving the time limit for Geyser's next court appearance.

Geyser, one of two people convicted in the 2014 Slender Man stabbing, was extradited back to Waukesha County after she left the group home and was detained in Illinois.

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Slender Man stabbing: Morgan Geyser arrest video released

The Posen Police Department released body-worn camera footage that shows the Monday arrest of Morgan Geyser in Illinois.

The Wisconsin Department of Corrections then filed a sealed petition on Nov. 25 that sought to revoke Geyser's conditional release. That triggered a 30-day window for a hearing, which was scheduled for Dec. 22.

What's next:

That hearing was delayed as a result of the decision on Dec. 4. Her next court date is now scheduled for Feb. 16.

Staffers on leave

Dig deeper:

Also on Wednesday, FOX6 News learned three Wisconsin DOC staffers are on administrative leave after Geyser left the group home. The DOC said those staffers were involved in the response to the incident. 

The staffers will be on leave while DOC leaders investigate the timeline of events, response times and adherence to department policies or procedures. 

Geyser arrested

The backstory:

Geyser cut off her Wisconsin Department of Corrections monitoring bracelet and left a Madison group home on Saturday night, Nov. 22. 

Geyser was found and taken into custody late Sunday night at a truck stop in Posen, Illinois. 

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The Posen Police Department said Geyser and a make subject took a Greyhound bus from Wisconsin to Chicago and then walked to Posen. Posen is about 25 miles south of Chicago. 

Officials have since identified the male subject as 43-year-old Chad Mecca, who was also taken into custody. He was charged with criminal trespassing and providing false information to police and was later released from custody. 

2014 Slender Man stabbing 

Dig deeper:

Geyser and her friend, Anissa Weier, lured Payton Leutner to a Waukesha park after a sleepover in 2014. Geyser stabbed Leutner 19 times while Weier egged her on. 

All three girls were 12 years old at the time. Leutner barely survived. 

Geyser and Weier fled after the attack but were arrested as they were walking on Interstate 94. They told investigators they attacked Leutner to earn the right to be Slender Man’s servants and feared he would hurt their families if they didn’t follow through. They had planned to walk to Slender Man’s mansion in northern Wisconsin after the attack, they said.

Weier pleaded guilty to being a party to attempted second-degree intentional homicide with a dangerous weapon in 2017, but like Geyser, claimed she was mentally ill and not responsible for her actions. She was committed to 25 years in a mental hospital but was granted release in 2021 after agreeing to live with her father and to wear a GPS monitor.

Geyser ultimately pleaded guilty to being a party to attempted first-degree intentional homicide in 2017 but claimed she wasn’t responsible because she was mentally ill. The following year, Waukesha County Circuit Judge Michael Bohren had committed her to a psychiatric hospital for 40 years.

Waukesha County Circuit Judge Scott Wagner signed off on the conditional plan to release Geyser from the Winnebago Mental Health Institute, a psychiatric hospital where she has spent the last seven years.

The case drew widespread attention in part because of the girls’ fascination with the Slender Man character. Slender Man was created online by Eric Knudson in 2009 as a mysterious specter photo-edited into everyday images of children at play. He’s typically depicted as a slim, spidery figure in a black suit with a featureless white face. He has grown into a popular boogeyman and has appeared in video games, online stories and a 2018 movie.