A woman shot her ex-husband Sunday outside the home in Pine they had shared, then put police through a three-hour-plus vigil before surrendering.

Police took Lynne Agnew, 46, of Shadyside, into custody about 8:50 p.m. after posting SWAT teams around the house and coaxing her out with a bullhorn.

Northern Regional Police Chief Bob Amann said Ms. Agnew had a gunshot wound to the chest, and was taken to UPMC Passavant Hospital in McCandless. Her ex-husband, Daniel Kelly Agnew, 43, had sustained multiple gunshot wounds, Mr. Amann said, and was flown from Passavant to one of the Pittsburgh hospitals.

According to Mr. Amann, Ms. Agnew came to the Salem Heights Drive house to confront her ex-husband, and shot him about 5:38 p.m. He ran into a neighbor's yard and collapsed; the neighbor called 911 and Dr. Agnew -- an orthopedic surgeon at Passavant -- was picked up by an ambulance.

Mrs. Agnew retreated into the house and, according to Mr. Amann, refused to speak to police for about two hours. Mr. Amann said police proceeded cautiously out of fear that the couple's two teen-aged children might be inside the house; police eventually determined that the children were at their mother's home.

About 7:30, just before SWAT teams arrived from Allegheny County Police and Northern Regional Police, there was a distinct blast from the house that could have been a gunshot.

The police crews twice tried to talk Mrs. Agnew out of the house, finally succeeding the second time. Mr. Amann said county police, who will be following the case, will be exploring whether her wound was self-inflicted.

Mr. Amann said police have been called to the Agnews' house before for domestic complaints, but could not offer specifics.

Dr. Kelly Agnew -- known by his middle name -- filed for divorce on Feb. 14, 2008, and Ms. Agnew filed for custody the same day.