• Video
  • Shop
  • Culture
  • Family
  • Wellness
  • Food
  • Living
  • Style
  • Travel
  • News
  • Book Club
  • Newsletter
  • Privacy Policy
  • Your US State Privacy Rights
  • Children's Online Privacy Policy
  • Interest-Based Ads
  • Terms of Use
  • Do Not Sell My Info
  • Contact Us
  • © 2026 ABC News
  • News

Look Inside 'Slender Man' Stabbing Suspect's Notebook

1:54
Inside 'Slender Man' Stabbing Suspect's Notebook
ABC News
ByMEGHAN KENEALLY
February 17, 2015, 6:27 PM

— -- Photos from inside one of the Slender Man stabbing suspect's notebooks show her drawings of the fictional character and a list of supplies, presumably the items she thought she would need in her alleged plot to attack her friend.

Anissa Weier and Morgan Geyser are charged with stabbing their friend in the woods in May 2014.

Related Articles

'Slender Man' Stabbing Suspect Expressed Fear Character Would Kill Her Family

Related Articles

'Slender Man': Both Stabbing Suspects Ruled Competent to Stand Trial

Related Articles

Who Is Slender Man? Fictional Horror Character Explained

Both suspects, who were 12 at the time of the attack, are charged with first-degree intentional attempted homicide as adults. The girls and their attorneys were in court Monday and today as the judge decides whether they should face the adult charges. Neither of the suspects has entered a plea as the attorneys attempt to get the charges changed.

The attorneys for both girls have never denied culpability and acknowledge the stabbing.

"This crime was committed because they believed in Slender Man, at least Morgan did," defense attorney Anthony Cotton said to ABC News today.

These photos from inside 'Slender Man' stabbing suspect Morgan Geyser's notebook were shown in Waukesha County Court on Monday Feb. 16.
These photos from inside 'Slender Man' stabbing suspect Morgan Geyser's notebook were shown in Waukesha County Court on Monday Feb. 16.
These photos of 'Slender Man' stabbing suspect Morgan Geyser's Barbies were shown in Waukesha County Court on Feb. 17, 2015.

In Waukesha County Court on Monday and this morning, photos were shown of pages in a notebook and other items belonging to Geyser that showed drawings of Slender Man and other characters.

On one page of the notebook, Geyser listed a series of "supplies nessecary [sic]," which includes a "map of forest" and "weapons (kitchen knife)."

Geyser and Weier are accused of tricking their fellow 12-year-old friend into coming over for a sleepover in May 2014 before they allegedly led her to a nearby forest and stabbed her 19 times. The girl survived and is now back in school.

These photos of 'Slender Man' stabbing suspect Morgan Geyser's Barbies were shown in Waukesha County Court on Feb. 17, 2015.
These photos of 'Slender Man' stabbing suspect Morgan Geyser's Barbies were shown in Waukesha County Court on Feb. 17, 2015.

Both Weier and Geyser were in court on Monday, when their police interrogation videos were aired, and the Slender Man-themed sketches from a black notebook found in a locker belonging to Geyser were shown to the court.

They also were in court this morning when an investigator testified that he found additional Slender Man-themed drawings in notebooks and in a Tupperware box in Geyser’s bedroom.

These photos from inside 'Slender Man' stabbing suspect Morgan Geyser's notebook were shown in Waukesha County Court on Monday Feb. 16.
These photos from inside 'Slender Man' stabbing suspect Morgan Geyser's notebook were shown in Waukesha County Court on Monday Feb. 16.
These photos from inside 'Slender Man' stabbing suspect Morgan Geyser's notebook were shown in Waukesha County Court on Monday Feb. 16.

Those drawings were shown in court today, as were photos of Barbie dolls the investigator said he found among Geyser’s possessions that had red slash marks on the arms or had their hands and feet cut off.

Defense attorneys were attempting to show that the crime was committed because of the girls’ belief in the Slender Man and the threat he posed against them and their families. The attorneys said that the belief in such a fictitious character should help demonstrate that the girls should be tried as juveniles.

The hearing ended this morning and the attorneys for both girls will be submitting written closing arguments to the judge. The decision hearing is scheduled for March 13.

ABC News' Kelley Robinson, Andy Fies and Rob Hess contributed to this report.

These photos from inside 'Slender Man' stabbing suspect Morgan Geyser's notebook were shown in Waukesha County Court on Monday Feb. 16.
These photos from inside 'Slender Man' stabbing suspect Morgan Geyser's notebook were shown in Waukesha County Court on Monday Feb. 16.

Up Next in News—

FTC warns about email scam masking as party invitations

May 29, 2026

23andMe accused of failing to protect user data in new lawsuit

May 29, 2026

New report warns of rising food insecurity nationwide

May 28, 2026

Florida man sues Carnival over alleged burns from hot pool deck

May 27, 2026

Shop GMA Favorites

ABC will receive a commission for purchases made through these links.

Sponsored Content by Taboola

The latest lifestyle and entertainment news and inspiration for how to live your best life - all from Good Morning America.
  • Contests
  • Terms of Use
  • Privacy Policy
  • Do Not Sell My Info
  • Children’s Online Privacy Policy
  • Advertise with us
  • Your US State Privacy Rights
  • Interest-Based Ads
  • About Nielsen Measurement
  • Press
  • Feedback
  • Shop FAQs
  • ABC News
  • ABC
  • All Videos
  • All Topics
  • Sitemap

© 2026 ABC News
  • Privacy Policy— 
  • Your US State Privacy Rights— 
  • Children's Online Privacy Policy— 
  • Interest-Based Ads— 
  • Terms of Use— 
  • Do Not Sell My Info— 
  • Contact Us— 

© 2026 ABC News