COBB COUNTY, Ga. -- A third victim in Tuesday's workplace shooting at a Kennesaw truck rental business has died.

Wellstar Kennestone Hospital said late Wednesday afternoon that Roberto Gonzalez, 39, of Dallas, was pronounced dead. The hospital said Gonzalez continues to remain on life support in order to pursue organ donation per his wishes.

Meanwhile, a judge denied bond Wednesday for the accused shooter.

Police have charged Jessie James Warren, 60, of Temple, with three counts of murder, and five counts of aggravated assault.

Warren went before a judge at 8 a.m. Wednesday morning. He was ordered to remain in the Cobb County Adult Detention Center without bond.

Warren asked for a court appointed attorney. His next court date is set for February 9.

Van Springer, 59, of Woodstock and Jaider Phillipe Marvlanda, 43, of Lawrenceville also died of injuries sustained in the shooting.

Joshua B. Holbrook, 27, of Rome, Ga. and Zachariah J. Werner, 35, of Kennesaw, remain at Wellstar Kennestone Hospital in critical condition.

Gonzalez is married to Holbrook's sister.

A Penske spokesperson, Randolph Ryerson, told CBS Atlanta News that the victims were either employees or contractors who had some connection with Penske.

Warren worked as a mechanic with Penske since 2005, but was laid off in July 2009. Penske officials could not confirm the reason for the layoff, but noted it was not due to the economy.

Cobb County Police spokesman Joe Hernandez said Warren was dressed in all camouflage and walked into the Penske truck rental business at 3011 Barrett Lakes Blvd. and began firing a handgun. Police said the victims were all shot in the head. Police said Warren had a confrontation in the parking lot before entering the building.

"He wasn't here for very long and it wasn't long before he was taken into custody," Officer Hernandez said.

Warren was taken into custody without incident a short time after the shootings. Hernandez said Warren was arrested less than a mile from the scene on McCullough Parkway at West Duncan Road.

Warren was later taken to the Cobb County Adult Detention Center where he was booked Tuesday night. Warren could make his first appearance before a Cobb County Magistrate Judge Wednesday morning.

Family and friends of the victims said they are the news spread quickly.

"My cousin, he let me know what happened. I drove straight to the hospital and I found out my cousin is dead now," said one man who did not want to give his name.

CBS Atlanta talked to Manuel Gonzalez, Roberto Gonzalez’ brother, about Warren. Manuel said he used to work with Warren and can't believe he's accused of such a violent attack.

“I don’t know he is just like any other dude. I didn't think it would come to this,” said Manuel Gonzalez.

Police said Tuesday afternoon that they weren't sure how many shots Warren had allegedly fired.

A man who witnessed the arrest said the suspect looked "out of his mind" and "all drugged up."

"The cops walked up on both sides of the truck, he opened the door and they threw him on the ground. He pretty much just gave up," Michael Robertson told The Associated Press.

Penske said it was a very traumatic day.

"We want to extend our deepest concerns and sympathies for the victims of today's shootings," Ryerson said.