At the scene, police found 54-year-old Nancy Hanson suffering from apparent blunt force injuries, officials said.
She was taken to a local hospital, where she died.
Investigators believe her husband, 64-year-old Richard Hanson, hit her multiple times with one or more objects, including a baseball bat, authorities said.
An autopsy was completed and determined the rule of death was homicide and the cause was blunt force trauma.
On July 13, the Newton District Court issued a restraining order against Hanson, but police were still attempting to serve it.
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He is being held without bail pending his arraignment.
"I know I speak for everyone in Newton when I say my heart goes out to the woman’s family and friends," Newton Mayor Ruthanne Fuller said in a statement. “The woman who was murdered appears to be the victim of domestic violence."
She added: "The victim’s husband was arrested at the scene by Newton police officers after responding to a 911 call and he remains in the custody of the Newton Police Department.”
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