Colorado teen pleads guilty in kidnap-slaying and dismemberment of 10-year-old school girl

A Colorado teen has pleaded guilty to murder and kidnapping in the kidnap-slaying and dismemberment of a 10-year-old girl that panicked Denver-area residents last year.

Eighteen-year-old Austin Sigg entered the pleas Tuesday in the death of Jessica Ridgeway in the Denver suburb of Westminster.

Police say Sigg had confessed to the crime and that officers discovered of some of the girl's remains at his home.

Jessica, a fifth-grader, disappeared while walking to school on Oct. 5, 2012.

Hundreds of police and residents searched for her, and parents escorted their children to and from school. The FBI asked residents to report suspicious behavior by friends, neighbors and even family members.

Her torso was found in a secluded park Oct. 10, 2012.