The third girl, also 12, survived her wounds.
A pool of 150 potential jurors was whittled down to 12 jurors and four alternates within six and a half hours on Monday.
Weier has pleaded not guilty due to mental illness in a stabbing that almost took the life of classmate Payton Leutner (LYT’-nur) at a Waukesha park when the girls were 12. Weier told authorities that attack was meant to appease the fictional character Slender Man.
“Morgan jumped on top of Bella and started stabbing her repeatedly, and that’s when I turned around because I couldn’t stand to see that”, Weier tells police in the interrogation video, using a nickname for the victim.
Geyser, during her own police interview, claimed it was Weier who jumped on Leutner and “held her to the floor”. If the jury rules against a mental disease or defect, the plea bargain calls for a 10-year sentence although the judge could deviate from that recommendation. Weier struck a deal with prosecutors in August in which she pleaded guilty to being a party to attempted second-degree intentional homicide, essentially acknowledging she committed all the elements of the offense.
Prosecutors charged both girls with being a party to attempted first-degree intentional homicide. If a jury decides Weier was mentally ill, she’ll stay at a mental health facility.
Psychologists testified in pre-trial hearings that Weier suffered from depression and a delusional disorder that made it hard to tell reality from fantasy, according to United States media. Her trial is set to begin October 9.