MADISON, Wis. (WMTV) - Morgan Geyser, one of the two people convicted in the Slender Man stabbing attack and escaped from a Madison group home, is back in Waukesha County Jail, according to the jail’s inmate roster.

WMTV’s NBC affiliate TMJ4 was outside the jail when a Cook County vehicle with tinted windows pulled into the jail’s sallyport as Geyser was taken back into Wisconsin custody.

The Wisconsin Department of Health Services has filed a petition to revoke Geyser’s conditional release, according to the Waukesha County District Attorney’s Office.

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