Prosecutors to challenge decision , ask for further examination . Parents , take heed : 'Slenderman ' and more lurk online . Two 12-year-olds charged with attempted first-degree intentional homicide . Comment: Girl was stabbed 19 times at a park in Waukesha , Wisconsin , in May . Victim , 12 , is recuperating at home .
Prosecutors to challenge decision , ask for further examination . Two 12-year-olds charged with attempted first-degree intentional homicide . Comment: Girl was stabbed 19 times at a park in Waukesha , Wisconsin , in May . Victim , 12 , is recuperating at home .