Philadelphia law center supports Morgan Geyser's appeal

PHILADELPHIA (CBS 58) -- There's a new twist in Waukesha's Slender Man stabbing case.

Philadelphia-based 'Juvenile Law Center' is backing Morgan Geyser's appeal 

Geyser admitted she stabbed a classmate with the help of Anissa Weier. 

Geyser is currently serving a 40-year sentence at a mental institution.

The Juvenile Law Center says "Morgan was simply too young and vulnerable to make a confession without the assistance of an attorney."