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Teen in Slender Man stabbing case was mentally ill and won't go to prison, jury decides

She'll go to a psychiatric hospital instead.

One of the girls involved in the 2014 Slender Man stabbing case has been deemed mentally ill by a jury and won't go to prison. 

Anissa Weier and Morgan Geyser had admitted to luring their classmate into the woods in Waukesha, Wisconsin. Geyser stabbed the victim 19 times, investigators said.

At the time, the girls told the investigators that the attack – which the victim, Payton Leutner, survived – was carried out to please Slender Man, a fantasy horror character that they believed to be real. All three girls were 12 at the time. 

Weier, 15, pleaded guilty back in August to attempted intentional homicide, but said she wasn’t responsible for her actions due to mental illness.

CBS 58 reports jurors deliberated for more than 12 hours over whether Weier had a mental disease and was able to control her actions. 

The jury reached a verdict Friday evening in agreement with Weier. 

Instead of going to prison, the girl will get psychiatric treatment at a mental hospital until at least 2020

The victim's family responds

The victim's family released a statement to WISN following the verdict saying the jury's decision is "deeply disappointing."

In a statement to ABC, the family explains that even though the decision isn't what they'd hoped for, they're going to accept it. 

"It provides closure without having to have Payton testify and be forced to relive this horrific incident," the Leutner family says. 

Geyser's trial is coming up

The trial for the other girl involved in the stabbing will begin Oct. 9, WISN reports. 

Geyser has pleaded not guilty to attempted first-degree intentional homicide by reason of mental disease or defect.

Officials previously said the two girls became obsessed with the Slender Man character and developed a condition called shared delusional disorder

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