GAS CITY, Ind. — Police in Gas City say Amanda Carmack has admitted to murdering her stepdaughter.

They say Carmack came into the police station Wednesday around Midnight, sobbing on the floor, and admitted to killing 10-year-old Skylea.

An autopsy ruled Skylea’s death a homicide by strangulation. Detectives believe she was killed on August 31. Her body was found September 4 in a trash bag inside a shed outside her home.

Carmack told investigators she was angry, after finding out Skylea had stolen a charm bracelet.

On September 1, investigators interviewed the six other kids that live in the house. The children told them that Carmack was physically abusive, and Skylea had been “confined to her room for the last week and a half.”

Carmack has been formally charged for murder, neglect of a dependent resulting in death, domestic battery and strangulation.