Wisconsin Salon Shooting: Zina Haughton, wife of suspected shooter, identified as one of those killed in weekend rampage

(CBS/AP) BROOKFIELD, Wis. - The wife of the Wisconsin man suspected of opening fire in a day spa outside Milwaukee on Oct. 21, has been identified as one of the those killed in the massacre.

PICTURES: Shootings sprees in 2012

Authorities say 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 on Sunday.

According to court documents, Radcliffe Haughton threatened to throw acid in his wife's face and jealously terrorized her "every waking moment."

In a written request for a restraining order filed Oct. 8, Zina Haughton said her husband was convinced she was cheating on him and that aside from the acid threat he also vowed to burn her and her family with gas. He said he would kill her if she ever left him or called the police, according to the court papers obtained Monday by The Associated Press.

"His threats terrorize my every waking moment," she wrote.

Haughton was arrested earlier this month for slashing his wife's tires; she was granted a four-year restraining order on Thursday.

Under the order, Haughton, of Brown Deer, was prohibited from owning a firearm.

Police responded last year to reports of domestic violence at the Haughton home. Zina Haughton called 911 saying her enraged husband had thrown her clothes and bedding into the yard and doused her vehicle with tomato juice. Radcliffe Haughton was charged with disorderly conduct, but the charge was later dismissed because a witness failed to appear in court.

A .40-caliber semiautomatic handgun was used in the attack, said agent Tom Ahern, of the Bureau of Alcohol, Tobacco, Firearms and Explosives.

The Waukesha County medical examiner's office on Monday identified the dead as Zina Haughton; Cary L. Robuck, 35, of Racine; and Maelyn M. Lind, 38, of Oconomowoc. It is not clear whether Robuck and Lind worked at the spa or were customers.

Complete coverage of the Wisconsin salon shooting on Crimesider