MADISON -- Morgan Geyser has been taken into custody in Illinois as of 10:34 pm, according to the Madison Police Department.

She had been missing since Saturday night, after cutting off her Department of Corrections monitoring bracelet and leaving her group home. She had traveled near Kroncke Drive around 8p.m. Saturday with an adult acquaintance.

Geyser, along with Anissa Weier, stabbed their classmate, Payton Leutner, 19 times in Waukesha in 2014 when they were 12 years old. All in an effort to appease the fictional character Slender Man.

Both were found not guilty by mental defect and committed to psychiatric facilities.

Geyser was originally sentenced to 40 years in a mental health institution before she was granted her conditional release by a Waukesha County judge back in M

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