14-year old admits killing 11-year old half-sister

Published 01/23 2014 02:06PM

Updated 01/23 2014 05:31PM

CHICAGO -- A 14-year old girl admitted killing her 11-year old half-sister. The victim was stabbed 30-times at their home.

The teen told police she was mad at her sister for being ungrateful and hitting her the night before. After committing the crime, she took a shower and made up a story about an intruder. She later confessed.

Neighbors are shocked at the crime. The suspect is in a juvenile detention center, but authorities say, as their investigation continues, she could be charged as an adult.

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