Slender Man assailant Morgan Geyser is no longer in the Waukesha County Jail. The sheriff's department confirmed she was ...

A prosecutor said Geyser needs to be sent back to a mental institution.

Geyser was taken into custody in Illinois, according to police.

“Slender Man” stabber Morgan Geyser could be sent back to a mental institution after authorities asked a court to revoke her conditional release after she escaped from a Wisconsin group home to be ...

PHOTO: Morgan Geyser one of the teens charged for Slender Man Stabbing, Photo Date: undated (Credit: Police Handout / MGN) WISCONSIN (ABC NEWS) – The whereabouts of Morgan Geyser, who in 2014 stabbed ...

CHICAGO (WLS) -- The so-called "Slender Man" stabber was in a Chicago court room on Tuesday, Morgan Geyser waived extradition to Wisconsin. Geyser was found Sunday at a Posen gas station after ...