(OSKALOOSA, Iowa) -- A 20-year-old woman has been charged with first-degree murder in the death of her baby girl in Oskaloosa.
Eighteen-month-old Ava Ritenour was found dead on Jan. 24 at a home on 18th Avenue East.
The Iowa Division of Criminal Investigation says an autopsy found that the child died from trauma to the head, and her death was ruled a homicide.
Following an investigation, the child's mother -- Alicia Marie Ritenour -- was arrested on Tuesday. She's also charged with child endangerment resulting in death.
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