Morgan Geyser, one of the two girls accused in the infamous Wisconsin Slender Man stabbing case, was missing for about a day.
Madison police wrote in an update that she has been found. On November 23, at approximately 10:34 p.m., the Madison Police Department "received confirmation that Morgan Geyser was taken into custody in the state of Illinois. There is no longer a need to search for Morgan Geyser at this time," police wrote.
Madison, Wisconsin, police confirmed that Geyser disappeared in a news release posted on November 23. They also alleged in an updated timeline that the state Department of Corrections did not relay an apprehension request to Madison police for Geyser. That request was issued around midnight on Saturday, November 22 after DOC learned that Geyser had cut off a GPS monitoring bracelet and fled her Madison group home, police wrote.
According to WISN-TV, authorities say that Geyser, now 23, and Anissa Weier "nearly killed their classmate by stabbing her 19 times as part of a plot involving the fictional character Slender Man." The case occurred in 2014 and generated national media attention. Geyser was later granted conditional release. The girls' young ages drove some of the attention; all of the girls involved in the case were 12 years old when it happened.
Geyser "has been under a 40-year commitment after she was found not guilty of first-degree attempted homicide by reason of mental disease or defect," GM Today reported. Weier was released in 2021 to live with her father, the site added.
In September, a judge signed an order to release Geyser to a group setting after other locations fell through, GM Today reported.
Geyser’s lawyer, Tony Cotton, posted a video on Instagram in which he said Geyser “walked away from the group home she was housed at.”
“It’s in her best interest to turn herself in immediately and not continue with this course of action,” Cotton said.
He said he didn’t know what happened or whether anyone assisted her, but if anyone assisted Geyser, that person would be prosecuted.
He said that if Geyser sees the video: “Turn yourself in. Do not continue to remain on the run like this. It’s not in your best interest to handle yourself this way.”
Police also released a surveillance image of Geyser. "Authorities are searching for a woman who cut off her Department of Corrections monitoring bracelet and left a group home Saturday night," police wrote.
"Morgan Geyser was last seen in the area of Kroncke Dr. around 8 p.m. with an adult acquaintance. Her whereabouts are unknown as of Sunday morning," the police statement says. "The Madison Police Department was notified of her disappearance on Sunday morning and immediately alerted the public."
Continued police: "An image of Geyser, captured on security video from this past month, is attached to this report. If you see Geyser, please call 911."
In March 2025, the Milwaukee Journal Sentinel reported that a Waukesha County Circuit Court Judge had "set aside concerns about Geyser's release from the Winnebago Mental Health Institute" and reaffirmed a plan to let Geyser, then 22, transition into the community.
Later in the evening, Madison police updated their statement to provide this timeline:
"Geyser was last seen at a group home at around 8:15 p.m. on Saturday.
Around 9:30 p.m., the Department of Corrections received an alert that Geyser’s GPS monitoring bracelet was malfunctioning.
Around 11:30 p.m., DOC made contact with the adult group home where Geyser was living.
Around 11:35 p.m., group home staff informed DOC that Geyser was not at the home and that she had removed her GPS bracelet.
Around midnight, DOC issued an apprehension request for Geyser. This request was never relayed to the Madison Police Department.
At 7:46 a.m., someone from the group home called 911 to report Geyser as a missing person.
At 7:58 a.m., Madison police was assigned to the call and headed to Kroncke Drive. This was the first time the Madison Police Department was made aware that Geyser was missing."