Radcliffe Haughton, a troubled Wisconsin man, barged into a Wisconsin spa and allegedly shot seven women, killing three, before taking his own life.
His estranged wife, Zina Haughton, was among those fatally wounded.
Zina Haughton died after husband Radcliffe Haughton opened fire at the Azana Salon & Spa in Brookfield, Wis., Sunday, a source close to the investigation said.
Police have yet to confirm the identities of the other women killed.
This was not the first sign of trouble. Officials were called to the spa several weeks before the shooting because Haughton allegedly slashed the tires of his wife's car.
He was arrested and charged for the incident and ordered to surrender all guns.
Zina Haughton also sought a restraining order on her husband October 8 and a judge issued a four-year restraining order just last Thursday, according to reports.
Investigators say they are still unclear why Radcliffe Haughton allegedly snapped, although they say he and his wife had been estranged for some time.
Witnesses say Zina's daughter, Yasmeen Daniel, 20, also witnessed the shooting.
Zina and Radcliffe Haughton have a 13-year-old daughter together, who was living with her father until the shooting occurred, a source close to the family said.
Radcliffe Haughton's father, Radcliffe Haughton Sr., apologized to the victims and their families for his son's apparent actions shortly after the incident.
"All I can say is, I want to apologize to the people of Milwaukee who have been hurt. He did not give me any hint of what he would do," Haughton told ABC News.
The shooting erupted 11:09 a.m. local time in Brookfield, and shortly after SWAT teams surrounded the spa with their guns drawn, preparing for a gun battle.
Witnesses described screaming women, at least one bleeding, fleeing the spa, with one rolling down a slight hill before police scooped her up and got her out of the area.
Customers - some still in robes, others barefoot - ran out of the spa in a panic.
Police found Haughton in a locked section of the building where he had apparently shot himself, the chief said. The four injured women ranged in age from 22-40.
The hospital was briefly placed on lockdown and only patients with a police escort were being accepted. Employees wishing to enter had to show identification.
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