A 53-year-old Palm Desert man was the gunman who shot two co-workers in Cathedral City — killing one — before shooting and killing himself, the Riverside County coroner's office said Friday.

The other man killed Thursday at Luxury Rent-A-Car, 68-350 E. Palm Canyon Drive, was a 49-year-old Northridge man, officials said.

The gunman also shot a third man, who was taken to Desert Regional Medical Center in Palm Springs, police said. An update on that man's condition was not available Friday.

According to Cathedral City police, the three men — along with another business partner who was not injured and called police after the shooting — were meeting in the business's showroom Thursday morning.

The Palm Desert man left the meeting to retrieve a gun from another room and returned to shoot his colleagues. Police are investigating possible motives.

The coroner's office said family members of the two men killed Thursday had been notified, but the office did not release the men's names at the request of a law enforcement agency.

A Cathedral City police spokesman did not return phone messages left Friday asking why the names were still being withheld.

The site of Thursday's shooting was a former Mitsubishi showroom that reopened within the past year as Luxury Rent-A-Car. The Cathedral City showroom and lot was the company's third valley location, co-owner Vaz Babekian told The Desert Sun in August 2008.

Mag Andrews, owner of Aladdin Deli and Market in Cathedral City, said he is friends with Babekian.

He said Babekian and another Luxury owner shopped at his store occasionally, most recently on Wednesday.

“This surprised me,” he said of the shooting.

A Cathedral City business license listed Seyed Sajasi as the company's president and Setrak Balabanian as vice president.

A woman who answered a phone number listed for Sajasi on Friday declined to comment.

“We would like to keep things private,” she said.

Efforts to reach Balabanian at phone numbers in various Southern California area codes were unsuccessful Friday.