Wisconsin spa gunman’s wife among shooting victims (VIDEO)

Authorities confirmed Monday that the wife of the man accused of gunning down three women at a Wisconsin spa was among those who died Sunday.

Radcliffe Franklin Haughton, 45, killed three women, including his 42-year-old wife Zina Haughton, and wounded four more before turning the gun on himself in a deadly case of domestic violence, police told The Associated Press.

Also among the dead: 35-year-old Cary L. Robuck and 38-year-old Maelyn M. Lind.

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It wasn't immediately clear whether Robuck and Lind worked at the spa or were customers, according to the AP.

Four days earlier, Zina Haughton had taken out a four-year restraining order on her husband, CNN reported.

According to a written request for the restraining order, Radcliffe Haughton thought his wife was cheating on him and had threatened to throw acid in his wife's face and burn her and her family with gas.

He also allegedly slashed the tires of her car in the spa parking lot earlier this month.

One of Zina Haughton's customers told Milwaukee TV station WTMJ the suspected gunman's wife was a hero and prevented more people from being shot.

"She just kept saying, 'Sir, calm down. Sir, what can I do for you,'" Betty Brunner told the radio station. "Zina immediately jumped in, got in front of the reception desk, tried diffusing the situation, talked to him, said this was a place of peace."