The body of Candice Cunningham was found September 13, after Grate led police to the house.
Richland County Sheriff Major Joe Masi said Cunningham’s body was identified through DNA.
Grate, who is being held in the Ashland County Jail, has confessed to killing five women. He is facing aggravated murder charges in Ashland County on two of the cases. The other three cases remain under investigation.