Authorities Find Morgan Geyser in Illinois a Day After She Cuts Off Ankle Monitor and Flees Group Home

Authorities in Wisconsin and Illinois said Morgan Geyser, who had been living in a supervised group home under state monitoring, was reported missing after she removed or cut off a court-ordered electronic monitoring device and left the facility late Saturday.

“Morgan Geyser, the woman convicted in the 2014 Slender Man stabbing in which a friend was stabbed 19 times, was arrested Sunday night in Posen, Illinois”

ABC7 Chicago

Madison police issued an alert asking the public to call 911 with any information and urged her to surrender.

ABC7 Chicago

Multiple outlets reported the device was an ankle or GPS monitor, and staff and authorities became concerned when she was not found on site.

The Department of Corrections and local police coordinated the search before she was located the following day in Illinois and taken into custody.

Authorities located Geyser Sunday night at a truck stop in Posen, Illinois, and took her into custody.

Several outlets said she was with an adult man who was initially charged with trespassing and obstructing identification, and he was later released.

Anadolu Agency

Reports place her arrival at the truck stop at varying times, between about 9:54 p.m. and 10:34 p.m.

They noted the arrest ended a multi-state alert that had been circulated after she cut off her monitoring device.

Law enforcement described the apprehension as successful.

Authorities said there was no ongoing public search after her detention.

Geyser's legal history and psychiatric commitment were widely reported.

“A 23-year-old Wisconsin woman, Morgan Geyser, who as a 12-year-old helped stab classmate Payton Leutner more than a dozen times in a 2014 attack reportedly intended to “please” the internet horror figure Slender Man, has been located in Illinois after removing an electronic monitoring bracelet and leaving a group home”

Associated Press

She was involved in the 2014 Waukesha-area stabbing of classmate Payton Leutner, who survived.

She was sent to the Winnebago Mental Health Institute after proceedings concerning her mental state.

Outlets differ on the 2017 outcome, with some describing a plea or guilty plea that led to institutionalization.

Other outlets report she was found not guilty by reason of mental disease or defect and committed to psychiatric care.

All accounts note a long-term commitment and a conditional release earlier this year that placed her in supervised housing.

Coverage also emphasizes that the attack was tied to the Slender Man internet character in the girls' statements to investigators.

Reporting highlighted procedural questions about oversight and response timing.

Some outlets said staff initially thought the monitor had malfunctioned and did not notify police for hours, prompting scrutiny about how and when the group home and corrections officials alerted law enforcement.

Associated Press

Local reports noted a nearly 12-hour delay between Geyser's disappearance and police notification.

Some outlets reported that a facility previously declined to accept her because it could not provide the needed supervision.

The discrepancy in how quickly officials were informed became a notable focus in several pieces.

Geyser's attorney publicly urged her to turn herself in immediately.

“A Wisconsin woman who as a 12-year-old helped nearly kill a classmate to “please” the online horror character Slender Man was found in Illinois after cutting off an electronic monitoring bracelet and leaving a group home, authorities said”

Click2Houston

The victim's family said they were monitoring developments and asked for privacy.

Click2Houston

Commentators and experts framed the case variously as a mental-health treatment story, a public-safety incident, or an internet-cultural cautionary tale.

Outlets ranged from measured mainstream reporting to more sensational tabloid accounts that emphasized lurid details.

Other reports foregrounded psychiatrists' expert testimony and rehabilitation efforts that led to conditional release.

Journalists noted the complex mix of long-term treatment, supervision conditions, and community safety considerations that complicate how such cases are reported and handled.