Geyser previously admitted to nearly stabbing a classmate to death in 2014 to please the online horror character Slender Man.

Geyser was found and taken into custody after she went missing from her group home in November 2025. Learn about the case known as the ‘Slender Man’ stabbing. Morgan Geyser, one of the two convicted ...

A prosecutor said Geyser needs to be sent back to a mental institution. "Slender Man" stabbing assailant Morgan Geyser waived her right on Tuesday to an extradition hearing, clearing the way for ...

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 ...

A Wisconsin woman's brief disappearance from a group home has reignited public interest in the so-called Slender Man stabbing case of which she was a perpetrator. Morgan Geyser was taken into custody ...