Hickory Police Chief Tom Adkins said investigators would continue to pursue leads until the trial begins.
Zahra, who used a prosthetic leg and hearing aids after being stricken with cancer, disappeared four months ago.
Police eventually found the girl’s remains in different locations around western North Carolina, and Elisa Baker told authorities that she had been dismembered, according to warrants.
But until yesterday, nobody had been charged in Zahra’s death. Elisa Baker has been jailed for months, charged with obstructing justice in the investigation by writing a fake ransom note that was found when the girl was reporting missing in October.
Authorities still have not said how the girl died.
The indictment cites aggravating factors, saying Elisa Baker had a history of physically, verbally, and psychologically abusing Zahra. And it says she desecrated Zahra’s body to hinder detection and prosecution of the killing.
A search warrant unsealed last month said Elisa Baker led police to the places where they found Zahra’s remains.
She said her husband, Adam Baker, dismembered the body. Adam Baker has denied that.