Doctors say one of two 12-year-old girls accused of stabbing a classmate to please a fictional online horror character is not competent to stand trial.
The doctors' reports have not been made public, but lawyers said on Wednesday that a doctor for the state of Wisconsin and a doctor hired by the girl's defence agree that she is not mentally competent.
Prosecutors have asked for further evaluation and a hearing on the matter, and the judge has agreed.
Authorities have said the two girls plotted for months to kill their friend to curry favour with the spectre known as Slender Man.
A criminal complaint says they lured her to a wooded park west of Milwaukee on May 31 and stabbed her 19 times.
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The victim is now recovering at home.
