Updated at 11:21 a.m. Tuesday: Revised to include more information about the victim and gunman.

A man fatally shot his female supervisor, then killed himself Monday morning at an office tower in Lake Highlands, near the High Five.

Lana McAree Canada (via Facebook)

Dozens of officers — including agents with the federal Bureau of Alcohol, Tobacco, Firearms and Explosives — responded to the building along LBJ Freeway, near Schroeder Road, as workers evacuated from the building about 10:45 a.m. Monday.

Dallas police on Tuesday identified the shooter as 60-year-old Matthew Kempf of Frisco and his victim as 48-year-old Lana McAree Canada of Sulphur Springs.

Police said Canada, a mother of seven, was a newlywed; her Facebook page indicates she was married in March. KXAS-TV (NBC5) identified her as a supervisor for Dignity Team Health.

The station also published a statement from Dignity Team Health spokeswoman Gayle Goodman that began:

"Our hearts are broken by yesterday's events. We want to first say our thoughts and prayers are with the families and friends of those impacted. We are a small company and we feel this loss deeply because all our team members are like family. We stand ready to help the authorities in any way we can as they investigate this terrible tragedy."

Kempf had no apparent criminal history, according to a search of public records.

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Police shot a locked glass door with a shotgun to get into the office where the bodies were — the only shot fired by police, Assistant Police Chief Randall Blankenbaker said.

Police suspect that Kempf shot Canada before killing himself in the meeting room.

One officer suffered a minor injury from broken glass and was taken to a hospital for treatment.

Blankenbaker said there were witnesses to the shooting, but no one else was injured.

SWAT officers searched the building floor by floor to make sure there were no other gunmen and to evacuate everyone who had taken shelter indoors. The building was declared safe at 12:49 p.m., police said.

Chris Collinsworth was having sales meeting in 10th floor when shooting happened 3 floors below in Dallas pic.twitter.com/wsjRTNqllg — Julieta Chiquillo (@jmchiquillo) April 24, 2017

Mary Jo Nsuk, who works in the building, stood in the parking lot shoeless just before noon. She was on the 10th floor when she heard a commotion coming from below and heard police say, "Come out with your hands up."

About five minutes later, police came to the door to escort her downstairs, saying, "Get out of the office, come on." She left her belongings, including her cellphone and shoes, behind.

"Police were doing their best to make sure all floors were clear," she said. "They protected people with shields, and a cop was facing backwards when they were trying to get us downstairs."

Brandee Love & Bailee Christian work on 10th floor. Said SWAT officers escorted them out of building. 1 officer's arm was bleeding pic.twitter.com/lALSElqDiQ — Julieta Chiquillo (@jmchiquillo) April 24, 2017

Brandee Love and Bailee Christian, who also work on the 10th floor, said they heard a number of shots and then screams.

A short time later, SWAT officers escorted them down a stairwell and out of the building. One officer's arm was bleeding, they said.

Paul Doran was on the sixth floor working at a commercial real estate investment company when he heard popping noises.

"We got the fridge to barricade the door and hoped we were all right," he said. "I was just scared. I've never been in this situation before."

1 / 23Workers stand outside at Lake Highlands office building where a shooting was reported Monday morning. (Jae S. Lee/Staff Photographer) 2 / 23Workers stand outside at Lake Highlands office building where a shooting was reported Monday morning. (Jae S. Lee/Staff Photographer) 3 / 23Bullet holes are seen near a broken window at the office building. (Jae S. Lee/Staff Photographer) 4 / 23Dallas Police officers talk with workers outside the office building Monday. (Jae S. Lee/Staff Photographer) 5 / 23Workers stand outside the office building after a shooting was reported. (Jae S. Lee/Staff Photographer) 6 / 23A Dallas Police Department officer leaves a shooting scene where police found two people dead at an office building in Lake Highlands near the High Five in Dallas, Monday, April 24, 2017. (Jae S. Lee/The Dallas Morning News)(Staff Photographer) 7 / 23Members of the Dallas Fire-Rescue team leave a shooting scene where police found two people dead at an office building in Lake Highlands near the High Five in Dallas, Monday, April 24, 2017. (Jae S. Lee/The Dallas Morning News)(Staff Photographer) 8 / 23An office building in Lake Highlands near the High Five where police found two people dead at a shooting scene in Dallas, Monday, April 24, 2017. (Jae S. Lee/The Dallas Morning News)(Staff Photographer) 9 / 23Two people evacuate a shooting scene where police found two people dead at an office building in Lake Highlands near the High Five in Dallas, Monday, April 24, 2017. (Jae S. Lee/The Dallas Morning News)(Staff Photographer) 10 / 23A Dallas Police Department officer (right) with an rifle leaves a shooting scene where police found two people dead at an office building in Lake Highlands near the High Five in Dallas, Monday, April 24, 2017. (Jae S. Lee/The Dallas Morning News)(Staff Photographer) 11 / 23A Dallas Police Department officer (left) watches workers who evacuated a shooting scene where police found two people dead at an office building in Lake Highlands near the High Five in Dallas, Monday, April 24, 2017. (Jae S. Lee/The Dallas Morning News)(Staff Photographer) 12 / 23Dallas Police Department officers help workers outside an office building in Lake Highlands near the High Five where police found two people dead at a shooting scene in Dallas, Monday, April 24, 2017. (Jae S. Lee/The Dallas Morning News)(Staff Photographer) 13 / 23Chris Collinsworth (in a green stripe shirt) talks with his co-workers in the parking lot outside an office building in Lake Highlands near the High Five where police found two people dead inside the office building in Dallas, Monday, April 24, 2017. (Jae S. Lee/The Dallas Morning News)(Staff Photographer) 14 / 23Police tape marks the shooting scene where police found two people dead inside an office building in Lake Highlands near the High Five in Dallas, Monday, April 24, 2017. (Jae S. Lee/The Dallas Morning News)(Staff Photographer) 15 / 23Camille Crowe (left) covers her face while talking with Tran Vu outside an office building in Lake Highlands near the High Five where police found two people dead inside the office building in Dallas, Monday, April 24, 2017. Crowe (Jae S. Lee/The Dallas Morning News)(Staff Photographer) 16 / 23Dallas Police Department officers gather outside an office building in Lake Highlands near the High Five where police found two people dead inside the office building in Dallas, Monday, April 24, 2017. Crowe (Jae S. Lee/The Dallas Morning News)(Staff Photographer) 17 / 23A man talks on his cell phone inside the parking garage next to an office building in Lake Highlands where police found two people dead inside the office in Dallas, Monday, April 24, 2017. (Jae S. Lee/The Dallas Morning News)(Staff Photographer) 18 / 23Paul Doran (second from left) and Tran Vu (second from right) are greeted by their co-workers Cathy Crowe (right) and Camille Crowe after evacuating an office building in Lake Highlands near the High Five where police found two people dead inside the office building in Dallas, Monday, April 24, 2017. (Jae S. Lee/The Dallas Morning News)(Staff Photographer) 19 / 23Workers wait outside an office building in Lake Highlands near the High Five where police found two people dead inside the office building in Dallas, Monday, April 24, 2017. (Jae S. Lee/The Dallas Morning News)(Staff Photographer) 20 / 23Dallas Police Department officers leave an office building in Lake Highlands near the High Five where police found two people dead inside the office building in Dallas, Monday, April 24, 2017. Crowe (Jae S. Lee/The Dallas Morning News)(Staff Photographer) 21 / 23Dallas Police Department officers put their gear in a trunk outside an office building in Lake Highlands near the High Five where police found two people dead inside the office building in Dallas, Monday, April 24, 2017. Crowe (Jae S. Lee/The Dallas Morning News)(Staff Photographer) 22 / 23A Dallas Police Department officer leaves an shooting scene outside an office building in Lake Highlands near the High Five where police found two people dead inside the office building in Dallas, Monday, April 24, 2017. Crowe (Jae S. Lee/The Dallas Morning News)(Staff Photographer) 23 / 23Two Dallas Police Department officers leave an shooting scene outside an office building in Lake Highlands near the High Five where police found two people dead inside the office building in Dallas, Monday, April 24, 2017. Crowe (Jae S. Lee/The Dallas Morning News)(Staff Photographer)

Cathy Crowe, Doran's aunt and his boss at the real estate company, wasn't in the building Monday morning but said she could see that her office's window was cracked. Photos from the scene showed a broken window about halfway up the west side of the building.

Qon Cole got to his job interview at the office tower at about 10:30 a.m., two hours early. He said he tried to get in but that the doors were locked from the outside. A guard told him to get out and that there was an emergency in the building.

"I didn't know what to say," Cole said. "I was puzzled."

He said workers were streaming out, some walking, some running.

Cole couldn't get back into his car. The guard motioned for people to move away.

"Get back! Get back!" the guard told Cole.

Our thoughts & prayers are with those involved during this incident at 8330 LBJ. Tenants at property please follow all emergency procedures. — Boxer Property (@BoxerProperty) April 24, 2017

The company that manages the building, Boxer Property, said on Twitter that its thoughts and prayers were with everyone involved.

Authorities closed the eastbound LBJ service road temporarily while police investigated.

Staff writer Marc Ramirez contributed to this report.