(POSEN, Ill.) — “Slender Man” stabbing assailant Morgan Geyser is scheduled to appear in an Illinois courtroom on Tuesday for a hearing in which prosecutors are expected to request that she be extradited to Wisconsin, where she allegedly fled a group home over the weekend.

The 23-year-old Geyser’s court appearance comes a day after the Wisconsin district attorney, whose office prosecuted her in the high-profile 2014 stabbing case, called on the state Department of Health Services to send her back to a mental institution.

A Wisconsin judge signed an order in September allowing Geyer a conditional release from a psychiatric facility, where she had been held for a decade, to a group home in Madison. At the time, prosecutors objected to her conditional release, alleging she had “violent” com

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