Attorney: Slender Man attacker descended into 'madness'

Attorney: Slender Man attacker descended into 'madness'

Jurors will decide whether Weier was suffering from a mental illness or defect at the time of the attack at a Waukesha park in 2014 when all three girls were 12 years old.

Her friend, Morgan Geyser, who helped with the stabbing has pleaded not guilty by reason of mental disease.

Morgan Geyser's trial is scheduled to begin later this month. He's convinced she legitimately believed that she and her family were in danger from Slender Man.

Anissa Weier trembled as the jury's verdict was read after a week of testimony and some 11 hours of deliberations.

Both Weier and Geyer advised criminologists they believed they needed to execute Leutner to wind up noticeably Slender Man's "intermediaries", or hirelings, and shield their families from the otherworldly beast. He could sentence her more seriously than the supplication understanding calls for, including up to a 25-year responsibility, the same as the most extreme jail time she could have gotten. The girls were allegedly trying to please the fictional internet bogeyman Slenderman.

Weier's attorney Maura McMahon said justice would be achieved by placing her in a secure mental hospital, where she belongs.

Melissa Westendorf was appointed by a judge to evaluate one of the girls, Anissa Weier, now 15, after her insanity plea.

Waukesha County Circuit Judge Michael Bohren said Weier will be committed to a mental institution.

Leutner had been lured to the park on May 31, 2014, by Weier and fellow classmate Morgan Geyser.

"At the moment of this awful tragic event, that she was confused and convinced that something real was going on with this very unusual character called Slender Man", he said.

A detective who interviewed Leutner testified in the Waukesha County courtroom that Geyser had been scaring her beforehand with stories about characters from a horror website.

In his questioning of Trussoni, Assistant District Attorney Kevin Osborne focused on the fact Weier didn't clearly tell anyone she was afraid of Slender Man's wrath until after the stabbing, reinforcing his comments in opening statements Tuesday that Weier understood that what they were doing was wrong, but that she went along with the plot to preserve her friendship with Geyser.

Both Weier and Geyser were originally charged with attempted first-degree intentional homicide.

Weier pled guilty as part of a plea agreement in August to attempted second-degree homicide as a party to a crime with use of a deadly weapon, court records show.