Before Aniston’s body was discovered, Walker had pleaded not guilty to charges of aggravated child abuse or neglect. She was free on $250,000 bond before she turned herself in on Monday.
Calls to Walker’s attorney were not immediately returned.
Back in January, police searched for the baby for three days with no results. Then on Sunday, a motorcyclist stopped on the side of the road in Millington saw the child’s body in a ditch and called police.
“It is heartbreaking to confirm that an innocent child’s life has been taken,” Armstrong said in a statement, “but now family members of Aniston Walker can have closure and begin the healing process of losing a loved one.”
Andrea Walker was charged with two counts: first-degree murder in the perpetration of a felony, to wit, aggravated child neglect or endangerment; and first-degree murder in the perpetration of a felony, to wit, aggravated child abuse.