Two people were killed and three critically injured in a shooting Tuesday at a Penske Truck Rental facility in Kennesaw, Ga., according to the Atlanta Journal-Constitution.

Jesse James Warren, 60, a former employee of the facility, is believed to be the gunman and was being booked on unknown charges as of press time.

The Journal-Constitution wrote that the brother of Penske employee Roberto Gonzalez said his brother is among those in critical condition, having been shot in the head.

Four Penske employees and one customer were shot, according to a Penske spokesman. None of the victims’ names was released. Cobb County police said all five of the shooting victims had ties to Penske. The business will be closed today.

Police said one of the victims died at WellStar Kennestone Hospital and the other died at the scene. Three other victims, all male, are in critical condition, according to a hospital spokesman.

A Cobb County police officer confirmed the shooter had worked for Penske for several years, but he did not know when the shooter's employment had ended.

Penske recently had layoffs, but Ryerson could not confirm if anyone from the Kennesaw facility had lost a job.

The Kennesaw facility is a regional office and employs 25, Ryerson said.