Morgan Geyser's Escape and Custody
Geyser moved to group home after conditional release from Winnebago Mental Health Institute in 2018.
Monitor malfunction led to apprehension request, but police notified 12 hours later.
Geyser gave false name, said 'did something really bad,' faces extradition in Cook County.
2014 stabbing linked to Slender Man created by Eric Knudson.
Geyser and Anissa Weier lured Payton Leutner, who survived after being stabbed 19 times.
1 month ago