EDMONTON - Security company G4S hasn't made any policy changes since one of its armoured car guards in Edmonton was charged with killing three colleagues during a heist.

Company president Jean Taillon said Thursday a review was done after the shooting at the University of Alberta in June. But nothing has changed.

"We continue to follow the same policies," he said.

"We have done a full end-to-end review of our screening and training policies and we continue to look for better ways to improve that. But all in all, we've actually maintained the process and procedures that we're doing today."

The issue of the company screening its employees was highlighted following the shooting as details were uncovered about the accused shooter, Travis Baumgartner.

The Facebook page of a Travis Baumgartner posted quotes by the anarchist Joker from the movie "Dark Knight." The movie included a violent bank heist. The profile picture on the page showed a person wearing sun glasses and a mask.

Two weeks before the shooting, the page also had a post that mused: "I wonder if I'd make the six o'clock news if I just starting popping people off.''

A former co-worker who trained with Baumgartner a few months before the shooting said Baumgartner acted odd on the job and his moods sometimes changed suddenly.

A crew of G4S guards was reloading ATM machines on the university campus when shots rang out. Michelle Shegelski, 26, Brian Ilesic, 35, and Eddie Rejano, 39, died at the scene. A fourth guard, 25-year-old Matthew Schuman, was quickly rushed to hospital and miraculously survived a bullet to the head.

Police named Baumgartner, a fifth guard on the crew, as a suspect and a massive manhunt ensued. The 21-year-old was arrested the next day B.C. at the Canada-US border. Police said they found $334,000 in his backpack.

Search warrants revealed that his mother told officers she woke up the morning of the shooting to find $64,000 in cash in her home. The documents suggested that the night before, she and her son had argued over rent money he had failed to pay her.

Baumgartner is scheduled to have a jury trial in September on charges of first-degree murder and attempted murder.

"This was a senseless tragedy that took three young lives and irreparably altered so many others," Edmonton police Chief Rod Knect said after meeting with Taillon Thursday. "Nothing but perhaps the passage of time will ease the pain of the families.

Taillon presented the police force and the head of the city's emergency medical services department with a plaque for their dedicated service in the aftermath of the shooting. He also praised them for helping with fundraisers for the families of the dead guards and the one who is still recovering.

"I've never seen a community come together so strongly and I feel this is part of our home," said Taillon, sporting one of the black wrist bands for sale that is etched with the first names of the guards who died.

"I want to thank you again for everything that you've done."

Robert Murray, a G4S manager in Edmonton, choked back tears as he talked about having dinner with some family members of the dead guards five weeks after the shooting. Schuman showed up as a surprise guest.

He was able to walk and speak with them. Everyone at the table was amazed, Murray said.

"Basically we had three grown men crying at the table to see how well Matt was doing," he said. "It was very inspiring for us."

He later saw Schuman at a summer fundraiser and the man was finally able to hold his two-year-old son. Murray said Schuman is doing remarkably well, but is still undergoing rehabilitation.

Working for G4S was Schuman's civilian job. He also is a corporal and Air Force firefighter stationed at Canadian Forces Base Edmonton.

Murray said Schuman is still a military member and will have a job with G4S if he ever wants to return to the company.

"There'll always be an opportunity, depending on what his skill level is," said Murray. "There'll always be a place for him at G4S. We'll find something for him."

Earlier on HuffPost:

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  • In this artist's sketch, Travis Baumgartner appears in an Edmonton courtroom, Thursday, June 21, 2012. Baumgartner, an armoured car guard accused of gunning down three of his crewmates during a robbery at the University of Alberta, has been forbidden to have any contact with a long list of people, including his parents.

  • Michelle Shegelski is shown in a photo from a Facebook page entitled "Dedicated To The G4S Armored Car Guards RIP." She was one of three guards killed in the shooting. Henrietta Shegelski of Lac du Bonnet, Man., confirmed the female victim was her daughter-in-law, Michelle Shegelski, who was in her mid-20s.

  • Eddie Rejano is shown in a photo taken from a Facebook page entitled "Dedicated To The G4S Armored Car Guards RIP." Rejano, one of three armoured car guards shot and killed during a robbery at the University of Alberta, aspired to be a police officer.

  • Travis Baumgartner

    Travis Baumgartner is taken out of a van by Canadian Border Services officers at the Aldergrove, British Columbia border crossing, Saturday, June 16, 2012. Baumgartner was stopped by customs at the United States border as he tried to enter the U.S. Baumgartner is wanted in a deadly armored car heist at a university in western Canada that left three armed guards dead, Friday. (AP Photo/Jonathan Hayward, The Canadian Press)

  • The pickup truck belonging to Travis Baumgartner is loaded onto a flabed truck by officers at the Aldergrove, B.C. border crossing, Saturday, June 16, 2012. Baumgartner was stopped by customs at the United States border as he tried to enter the U.S. Baumgartner allegedly shot and killed three G4S guards during a robery in Edmonton on Friday.

  • Edmonton Police Services Chief Rod Knecht (right) and G4S Secure Solutions president and CEO Jean Tallion arrive at a press conference regarding the arrest of Travis Brandon Baumgartner in Edmonton, Alta., on Monday, June 18, 2012. Police in Edmonton say the accused is co-operating with investigators.

  • Travis Brandon Baumgartner, 21, is shown in a police photo released on Friday June 15, 2012. Police say the man wanted in a deadly armoured car heist at the University of Alberta has been arrested. THE CANADIAN PRESS/HO

  • Forensics officers inspect the scene after three people where killed in a shoot out in an attempted armed robbery of an armoured car at the HUB Mall on campus of the University of Alberta in Edmonton on Friday, June 15, 2012. THE CANADIAN PRESS/Ian Jackson

  • Memorial flowers are left at the operations offices of G4S, a security company, in Edmonton, Alberta, on June 16, 2012. Three people where killed in a shoot out after an attempted armed robbery at a student residence called the HUB mall at the University of Alberta on June 15, 2012. THE CANADIAN PRESS/Ian Jackson

  • Employees of G4S, a security company, leave the company's offices as police secure an armoured vehicle left near the G4S office believed to be used in an attempted armed robbery in the Hub Mall area on the campus of the University of Alberta in Edmonton on Friday, June 15, 2012. THE CANADIAN PRESS/Ian Jackson

  • Police investigate the scene after three people were killed in an apparent attempted armed robbery at the University of Alberta in Edmonton, Canada on Friday, June 15, 2012. The robbery happened in the Hub Mall area, which is a combination of student residences and 54 shops. (AP Photo/The Canadian Press, Ian Jackson)

  • Police investigate the scene after three people were killed in an apparent attempted armed robbery at the University of Alberta in Edmonton, Canada on Friday, June 15, 2012. The robbery happened in the Hub Mall area, which is a combination of student residences and 54 shops. (AP Photo/The Canadian Press, Ian Jackson)

  • Police investigate the scene after three people were killed in an apparent attempted armed robbery near the HUB Mall area on the campus of the University of Alberta in Edmonton on Friday, June 15, 2012. THE CANADIAN PRESS/Ian Jackson