‘Slender Man’ Stabbing Convict Anissa Weier Released from GPS Monitoring After 2014 Attack

Anissa Weier, one of two young women convicted in the infamous "Slender Man Stabbing," has been released from her GPS monitoring.

The case originated in 2014 when Weier, assisted by her friend Morgan Geyser, brutally attacked their 12-year-old classmate, Payton Leutner to satisfy the desires of a fictional online character named "Slender Man."

On Monday, a Waukesha County Circuit Court judge approved her conditional release, freeing her from the GPS device, as local news station WLUK reported, citing court records.

Weier and Geyser were found guilty of assaulting their classmate after luring her to a wooded area during a sleepover in Waukesha, Wisconsin. According to prosecutors, Geyser stabbed Leutner 19 times, while Weier urged her to do so.

The duo claimed they attacked Leutner to appease "Slender Man"— a fictional horror character—to prevent him from killing their families. After the assault, Leutner survived her injuries by crawling out of the woods and was later discovered by a passing cyclist.

Now 21, Weier was admitted to a psychiatric facility in 2017. She was released four years later but was mandated to wear a GPS monitor while continuing treatment at an outpatient psychiatric clinic.

On the other hand, Geyser pleaded guilty to attempted first-degree murder and was sentenced in 2018 to 40 years in a mental institution.

Geyser's attorney filed a petition for her conditional release in May, but the review hearing, initially scheduled for August 28, was subsequently canceled.

In a 2019 interview with ABC News, Leutner recalled that Geyser, her attacker, was her best friend, someone she felt she could trust. "She had a lot of jokes to tell. … She was great at drawing and her imagination always kept things fun."

Yet, as Leutner revealed, "everything went downhill" when Geyser introduced her to the Slender Man legend in sixth grade after befriending Weier.

"I thought it was odd. It kind of frightened me a little bit," Leutner said. "But I went along with it. I was supportive because I thought that's what she liked."