Slenderman Verdict: What the Jury Decision Means

Key Facts at a Glance

Below are the core, generally accepted details of the case as established in court records and verified reporting. These points frame the legal outcome and its context.

What Happened: The Background of the Slenderman Case

In the evening of May 31, 2014, two preteen girls in Waukesha, Wisconsin, lured their classmate into the woods and stabbed her 19 times. The victim, a 12-year-old girl, survived the attack. The two perpetrators, Anissa Weier and Morgan Geyser—both 12 at the time—later told investigators they were attempting to prove their loyalty to the fictional online horror character Slenderman, believing that doing so would protect their families from harm. The case quickly drew national and international attention because of the mythos around Slenderman, an internet-born boogeyman created in 2009 as part of a Photoshop contest.

As the case moved through the juvenile justice system, it raised questions about how young people process and act upon online narratives, the boundaries of mental competency, and the appropriate legal response when children commit violent acts influenced by fictional characters. The eventual rulings focused on mental state rather than simple culpability, producing a verdict that underscores the complexity of trying juveniles for severe crimes.

The Verdict Explained: What the Jury Found

The Slenderman verdict does not follow a simple guilty or not guilty pattern. Instead, the court addressed the mental state of each defendant at the time of the offense. In the United States, defendants who are found not guilty by reason of mental disease or defect are not acquitted in the way a person would be in a typical not-guilty scenario. Rather, they are typically committed to a mental health facility for treatment and supervision, with the possibility of conditional release after a period determined by medical professionals and the court.

Anissa Weier: A Mental Disease Defense

In November 2017, a jury found Anissa Weier not guilty by reason of mental disease or defect. The defense had presented extensive psychiatric testimony indicating that Weier suffered from severe delusional disorder. According to the experts, she was unable to distinguish right from wrong in relation to the act she committed. As a result, the court committed her to a mental health facility, with reviews determining when, if ever, she could be released into the community.

Morgan Geyser: Attempted Second-Degree Murder

Morgan Geyser was tried as a juvenile and, in February 2018, was found guilty of attempted second-degree murder. Unlike Weier, Geyser’s case did not hinge on a not guilty by reason of insanity defense. Instead, the jury determined that she understood her actions and their consequences, even though both girls were deeply immersed in the online Slenderman mythology. The court committed Geyser to the Wisconsin Department of Health Services, where she remained for a substantial period, reflecting the severity of the attempted homicide charge.

How the Verdict Aligns with Legal Standards

The Slenderman verdict illustrates a key principle in criminal law: mental competence matters as much as the act itself. When a defendant cannot comprehend the nature of their actions or distinguish right from wrong due to a mental disease or defect, the legal system often responds with treatment and supervision rather than traditional punishment. This is particularly relevant in cases involving minors, whose cognitive and emotional development may not be fully formed. The outcome reflects the court’s attempt to balance public safety, accountability, and the mental health needs of the defendants.

Comparing Possible Outcomes

In cases of violent crime involving juveniles, outcomes can vary widely. The table below contrasts common verdict scenarios, focusing on how they differ from the Slenderman verdict in intent, culpability, and consequence.

The Role of the Internet and Urban Myth in the Case

Slenderman is not a figure from folklore or religion but an internet creation. He originated in 2009 on the Something Awful forums as a digitally edited character designed for a paranormal image contest. From there, the mythos grew through forums, fan art, and games, eventually taking on a life of its own. The case prompted widespread discussion about the boundary between online fiction and real-world behavior, as well as the responsibility of platforms that host user-generated content. The defense leaned heavily into the influence of the online narrative, suggesting that the girls’ immersion in the story distorted their perception of reality.

Factors Contributing to the Verdict

• Psychiatric evaluations indicating delusional disorder and impaired reality testing
• The immersive, narrative-driven nature of the Slenderman mythos
• The age and cognitive development of the defendants at the time of the offense
• The absence of premeditation or personal animosity toward the victim

Impact and Legacy of the Ruling

The Slenderman verdict remains significant because it represents one of the clearest examples of a court applying an insanity defense in a case where the defendant was a minor and the crime was influenced by an online myth. It underscores the need for mental health evaluation and treatment in the juvenile justice system, rather than purely punitive measures. While the outcome may seem lenient to some, it reflects the legal system’s attempt to respond proportionally to diminished culpability and severe mental illness. The case continues to be studied by legal scholars, mental health professionals, and sociologists interested in the intersection of internet culture, adolescent psychology, and criminal law.

Long-Term Considerations

Both defendants will likely remain under supervision for an extended period. For Weier, this means continued treatment in a mental health facility with ongoing assessments. For Geyser, the conviction and commitment to a health services facility indicate that the court viewed her actions as serious, even if her mental state differed from that of a typical murder defendant. The long-term goal in both cases is rehabilitation and risk management, rather than retribution alone.

Common Misconceptions About the Verdict

Because the case involves an internet character and young defendants, several misunderstandings persist. One is that the girls walked away without consequence; in reality, both were committed to secure facilities for treatment and monitoring. Another is that the verdict endorses dangerous behavior inspired by fiction; in truth, it acknowledges a specific mental health condition that affected the defendants’ ability to understand their actions. It is also sometimes mistakenly believed that the ruling sets a broad legal precedent; in practice, it is shaped by the unique psychiatric evidence presented in this particular case.

• The verdict did not mean the defendants faced no consequences
• The decision was based on specific psychiatric findings, not a general rule
• Both defendants remain under court supervision and treatment

Conclusion

The Slenderman verdict reflects the nuanced reality of trying minors for violent acts influenced by online content. By finding Anissa Weier not guilty by reason of mental disease or defect and convicting Morgan Geyser of attempted second-degree murder, the court acknowledged the role of severe mental illness while still holding the defendants accountable through structured, long-term treatment. For anyone following high-profile cases involving internet culture and youth, this case remains a critical example of how law and mental health intersect in the digital age.