BARTOW, Fla. (AP) — A medical examiner says a baby who was found dead in her car seat in a Florida restaurant parking lot had lost more than one-third of her body weight in the 22 days since she was born.

The testimony Friday from Polk County’s assistant medical examiner came in a bond hearing for Roy Stephens of Tennyson, Indiana. He and the baby’s mother, Ruby Stephens, are charged with first-degree murder.

Dr. Vera Volnikh testified that the baby died Dec. 23 of malnutrition as a result of starvation. Roy Stephens’ attorney questioned that claim, saying the medical examiner only did a cursory examination and tests.

According to records, the baby wasn’t Stephens’ daughter, but he had assumed parental responsibilities.

The couple had two other children and both were in good health.