Join Lauren and Bally this week as they discuss one of the most shocking crimes involving children in recent history: the Slender Man stabbing.

In 2014, two 12-year-old girls lured their best friend into the woods and stabbed her 19 times, believing it was the only way to prove their loyalty to the fictional internet character, Slender Man. We explore how online horror, shared delusions, and severe mental illness played a role in the attack, and what happened to Morgan Geyser, Anissa Weier, and survivor Payton Leutner in the years that followed.

If you or someone you know is struggling with their mental health, support is available.

Mental Health Support (UK)

Samaritans: 116 123

Mind: 0300 123 3393

NHS 111: Dial 111 or visit https://www.nhs.uk

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Sources

ABC7 Chicago: https://abc7chicago.com/amp/post/morgan-geyser-911-calls-detail-slender-man-attackers-escape-madison-group-home/18861661/

WTMJ: https://wtmj.com/news/2025/11/24/whats-next-for-morgan-geyser-after-fleeing-group-home-arrest-in-illinois/

AOL: https://www.aol.com/articles/where-payton-leutner-now-heres-110000683.html

Criminal Minds Wiki: https://criminalminds.fandom.com/wiki/Anissa_Weier_and_Morgan_Geyser

CBS News: https://www.cbsnews.com/news/psychologist-shared-delusion-led-to-slender-man-stabbing/

BBC News: https://www.bbc.co.uk/news/world-us-canada-42913133

MindSite News: https://mindsitenews.org/2022/08/24/how-psychosis-and-internet-obsession-brought-two-girls-to-the-brink-of-murder/

ABC News: https://abcnews.go.com/US/slender-man-stabbing-survivors-parents-describe-horrific-ordeal/story?id=25787516

CNN: https://edition.cnn.com/2018/02/01/us/slenderman-morgan-geyser-sentence

All That’s Interesting: https://allthatsinteresting.com/anissa-weier