Advertisement Suspected shooter dead, 3 employees hurt in Wisconsin workplace shooting The shooter was heavily armed with semi-automatic pistol, extra ammunition Share Shares Copy Link Copy

Officers who responded to a Wednesday morning workplace shooting in Middleton, Wisconsin, encountered gunfire and a chaotic scene, the police chief said in describing the eight minutes it took from the first 911 call to the end of the threat."Their quick actions -- the training worked and put a stop to this incident," police Chief Charles Foulke said of the officers. "I didn't think we'd be using (training for an active shooter) in Middleton, but we did today."The shooter died at University Hospital. His name was not released, but Foulke confirmed he lived in nearby Madison and was an employee of WTS Paradigm, a software company inside the complex on the 1800 block of Deming Way where the shooting took place. The motive wasn't immediately known.The chief said the shooter was heavily armed with a semi-automatic pistol and extra ammunition. Two Middleton officers and two Dane County deputies engaged the employee, but Foulke said he didn't know who took the shooter down.One of the victims in the shooting remained hospitalized Wednesday afternoon in critical condition. Two others were in serious condition, a hospital statement said. Foulke said a fourth person suffered a minor graze injury.Business analyst Judy Lahmers said the shooting was "totally unexpected" and that she didn't know whether to run or hide when she heard shots about 10 a.m. She said she ran out of the building and hid behind a car."I'm not looking back. I'm running as fast as I can. You just wonder, 'Do you hide or do you run?'" Judy Lahmers, a business analyst at WTS Paradigm, said.Lahmers said she knows one co-worker was grazed by a shot but was OK."We're all software people. We have a good group," she said. Gabe Geib, who works at nearby Esker Inc., said he heard a couple of shots but didn't immediately know what it was. He said he then saw numerous people running away from the building in "full sprint."He said he and his colleagues were still huddled in their cafeteria, away from windows, more than an hour after the shooting.Nearby schools were placed on lockdown, but that order was lifted at about midday.The shopping center next to the building, Greenway Station, was also locked down at the direction of police, according to the center's general manager Corey Kautzky. There are 34 stores and restaurants in the center that were temporarily closed, Kautzky said.Middleton is about 90 miles west of Milwaukee.The Associated Press contributed to this report.