WAUKESHA, Wis. (NBC Chicago) -- Two Wisconsin girls charged in a stabbing of another girl claim they wanted to please fictional character "Slenderman."
The two girls, both age 12, planned a murder for months after learning about Slenderman through a website.
On Saturday, they led a third girl, also 12, into the woods near a park in Waukesha, a suburb of Milwaukee.
Once there, one girl sat on the victim while both traded the knife back and forth to stab her. They left her in the woods.
"The bad part of me wanted her to die, the good part of me wanted her to live," one girl told an investigator. The other girl said they were "probably wrong."
The victim managed to crawl to a road before being discovered by a passerby. She suffered 19 stab wounds and is in stable condition.
Both girls are being charged as adults and could face up to 60 years in prison if convicted.
"It's extremely disturbing as a parent and as chief of police," Waukesha Police Chief Russell Jack said.
The girls are due in court June 11 for a conference. No names have been released.