WAUKESHA, Wis. -- Slender Man stabber Morgan Geyser is in the Waukesha County Jail after leaving a group home with a 43-year-old man last week.

Geyser, along with classmate Anissa Weier, stabbed Payton Leutner 19 times in Waukesha, Wisconsin, when they were just 12 years old. Leutner survived the attack.

In 2017, Geyser pleaded guilty but not guilty by reason of mental disease to attempted first-degree intentional homicide as a party to a crime and was committed to a psychiatric hospital.

Weier also pleaded guilty but not guilty by reason of mental disease in 2017 to attempted second-degree intentional homicide with a dangerous weapon as a party to a crime. She was committed to a psychiatric hospital but was released in 2021.

Geyser was released from the Winnebago Mental Health Institu

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