Authorities have intensified their search for Morgan Geyser, a Wisconsin woman found guilty in the notorious 2014 “Slender Man” stabbing case. Geyser reportedly removed her Department of Corrections tracking device and absconded from a group home in Madison on Saturday night, according to police reports.

The Madison Police Department made the public aware of Geyser’s escape via a social media update on Sunday.

“Morgan Geyser was last observed in the Kroncke Dr. vicinity around 8 p.m. in the company of an adult companion. Her current location remains unknown as of Sunday morning,” the department stated. “We were alerted to her disappearance on Sunday morning.”

They also shared, “Attached below is a recent image of Geyser captured on security footage from the past month. If spotted, please contact 911 immediately,” the police urged.

Morgan Geyser, who was convicted for her role in the 2014 “Slender Man” stabbing, appears in recent security video footage prior to her escape from the Madison group home. Authorities report she detached her monitoring bracelet on Saturday night and her whereabouts are still unknown. (Madison Police Department)

In 2017, Geyser pleaded guilty to attempted first-degree intentional homicide in the violent stabbing of Payton Leutner, but claimed she was not responsible due to her mental illness.

She told investigators she tried to kill Leutner to please the horror character Slender Man and was ultimately found not guilty by reason of mental defect. 

Morgan Geyser appears in a Waukesha County courtroom Thursday, Jan. 9, 2025, in Waukesha, Wis. (AP Photo/Morry Gash)

Geyser and her friend, Anissa Weier, were 12 when they lured Leutner into a wooded park during a sleepover in May 2014. Geyser, encouraged by Weier, stabbed Leutner 19 times.

Morgan Geyser is brought into Waukesha County Circuit Court for day 2 of a motion hearing on Thursday, April 11, 2024.  (Scott Ash/Milwaukee Journal Sentinel)

Leutner miraculously survived the attack.

Geyser has been in custody at the Winnebago Mental Health Institute for the last seven years.

She was initially sentenced to 40 years in the psychiatric hospital and was permitted to ask the court to consider her conditional release every six months.

Police told local outlet WMTV that Geyser was staying at a group home in Madison before she disappeared.