Geyser and Weier told police they did so to curry favor with the Slender Man, which was a popular online urban legend, in a case that attracted global attention. Geyser pleaded guilty to attempted first-degree intentional homicide, while Weier pleaded guilty to attempted second-degree intentional homicide.

The case surrounding a stabbing that became known nationwide as the "Slender Man stabbing" more than a decade ago took a new twist over the weekend.

Geyser and a friend lured a classmate to the woods and stabbed her 19 times in 2014. She moved from a psychiatric facility to a group home in Wisconsin earlier this year.

Geyser was discovered sleeping on an Illinois sidewalk after cutting off an ankle monitor and escaping from a group home

Morgan Geyser, Madison police say, cut off her GPS monitor Saturday night and fled her group home located on Kroncke Drive on the city's south side.