UPDATE: Rockford Police have identified the woman that died after a domestic battery incident in the 3500 block of Louisiana Road on Thursday afternoon.
Police say they responded to the location at about 5:30 p.m. for reports of a female battery victim. Officers located Monica D. Box, 35, who had a life threatening wound to her head.
A Rockford Fire ambulance transported Box to a local hospital, where she was pronounced dead. The Winnebago County Coroner says the preliminary autopsy reports show Box died due to blunt trauma to the head.
Officials say the incident is an active homicide investigation, and are searching for Terrell Ellis, 36, who is on parole, as a person of interest in the case. The Illinois Department of Corrections has obtained a parole violation warrant for Ellis' arrest.