A 15-year-old north Florida girl who authorities say fatally shot her 16-year-old brother after years of abuse has pleaded no contest to felony burglary and will receive probation.

Third Circuit State Attorney Jeff Siegmeister said Thursday that the girl will not face a murder charge. The girl and her 11-year-old sister were arrested on suspicion of murder after the Jan. 5 shooting. No charges were filed against the younger sister.

Documents show that the elder girl suffered years of abuse, including being locked in her bedroom for days with only a blanket and a bucket to use the bathroom.

The Associated Press is not naming members of the family because of the girls' ages and because of abuse allegations.