According to a police department news release, officers went to a Beloit home at 7:40pm Sunday on an unwanted person complaint, where they found Sheila Rosenbaum and a 40-year-old man.
Officers attempted to arrest the man but he allegedly got away, jumped in a vehicle and hit Rosenbaum. The officers attempted lifesaving efforts, according to the release, but she was pronounced dead at a local hospital.
Police say officers fired at the vehicle and the suspect crashed a short distance away.
The man tried to run again but officers caught him in a backyard, police said. Officers found he had a gunshot wound and was taken to a hospital for treatment. In an email Sunday, Capt. Dan Risse said he did not have an update on his condition.
On Sunday, Risse said the two had a relationship at some point, but he didn't know the current status.
"This incident is further proof domestic violence is as disturbing to a community as gang violence associated to drugs or weapons," he said in the email.
A state law recently went into effect requiring an outside investigator to run officer-involved death investigations. The police department said it has asked the state Department of Justice's Division of Criminal Investigation to look into the shooting.
The officers involved had been reassigned to administrative duty, which is normal protocol after an officer-involved shooting, according to police.