"A girl who allegedly tried to kill her 12-year-old classmate in order to please horror character Slender Man has pleaded not guilty by reason of mental disease or defect.
Morgan Geyser and Anissa Weier, both 14, are accused of luring Payton Leutner into woods in Waukesha, Wisconsin, in 2014 and then stabbing her 19 times.
They told investigators they had hoped killing Leutner would gain them favour with Slender Man, a mythical demon-like character. Leutner eventually recovered from her injuries.
Judge Michael Bohren appointed two doctors to examine Geyser after she entered her plea at Waukesha County Circuit Court on Friday.
Both Geyser and Weier face one count of attempted first-degree intentional homicide and are being tried as adults. Weier pleaded not guilty last year.
Experts have testified Geyser suffers from schizophrenia, oppositional defiant disorder and maintains relationships with imaginary characters.
If she is found mentally deficient she would be confined to a mental hospital but if she is ruled fit she could be jailed for up to 40 years."