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 escaping from a group home.

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Prosecutors said Geyser cut off her ankle monitor and traveling all the way here to Posen.

Geyser was the subject of a nationwide search for about a day, until police found her sleeping on the sidewalk with another person outside a Posen gas station.

RELATED: Morgan Geyser escape: 'Slender Man' stabbing assailant arrested in Posen, police say

Body camera video obtained from Posen police shows Geyser expressing concern for the person she was found with.

She initially gave officers a fake name, then told them

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