INVERNESS — A 20-year-old woman accused of killing her 6-month-old son was arrested Monday on charges of first-degree murder, the Citrus County Sheriff's Office said.
On Jan. 28 about 6:25 a.m., Brittany Nichole Arnett and her boyfriend arrived at Citrus Memorial Hospital with her son, Hadley. The baby was "neither responsive nor breathing," an arrest affidavit states.
Hadley was pronounced dead at the hospital.
An examination revealed several marks, including a bite mark on his left thigh and bruising along the rib cage, the affidavit states.
An autopsy conducted Jan. 29 found the child suffered from brain hemorrhaging, a broken spine and ribs, and cuts inside his mouth.
While being interviewed by detectives, Arnett admitted to beating her son while her boyfriend was away from their home, the affidavit states.
Arnett told detectives she was frustrated that she was left alone with her son, so she placed the baby on a swing and slammed his face against the tray for several hours.
She then pulled the baby out of the swing forcefully, hitting his head against the tray, an affidavit states.
Arnett also told detectives she knew the baby was injured, but because she was worried about getting in trouble, put her son to sleep that night, Jan. 27.
The following morning, he stopped breathing, the affidavit states.
Arnett was being held at the Citrus County Detention Facility Tuesday.