Police arrested a retired Army sergeant major within an hour of the shooting and recovered a handgun thought to have been used in the incident, but did not identify him or the victim.
The woman, an officer course instructor at the Army Medical Department Center and School, was in stable condition at the San Antonio Military Medical Center on Fort Sam after suffering multiple gunshot wounds.
It was the post's first shooting in 20 years.
“The last active shooter incident was in 1993,” said Phil Reidinger, a spokesman for the center and school. “An employee held a supervisor hostage, and after many hours of negotiation, the hostage-taker surrendered and the employee was not harmed.”
Army investigators, Air Force Security Forces and San Antonio police swarmed the post area after shots were fired at 2:50 p.m. in a veranda outside the instructor's office at the four-story AMEDD headquarters.
Just what precipitated the incident isn't clear, but San Antonio Police Chief William McManus said the suspect and victim were in a relationship.
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