Morgan Geyser

In May 2014, Morgan Geyser and Anissa Weier stabbed their classmate Peyton Leutner 19 times in a forest in Wisconsin to please the fictional internet-horror character Slender Man. However, Peyton survived the attack and was saved by a biker who saw her crawling through the forest.

Morgan was sentenced to 40 years in a psychiatric hospital, while Anissa only received 25 years. In 2021, Anissa was granted a supervised release, while Morgan was granted a conditional release to a group home in earl ... y 2025.

In November 2025, Morgan successfully cut off her ankle monitor and went missing near Madison, Wisconsin. She was found the next day and was taken back into custody.