According to The Associated Press, the Fulton County Medical Examiner's Office identified the man as Justin Hayes of Cumming, Ga.
A release issued by the Braves late Wednesday morning said: "The Atlanta Braves and Atlanta Police Department are investigating the tragic accident that resulted in the death of a 25-year-old male fan at last night's game. Our sincerest and heartfelt condolences go out to his family."
It's believed that Hayes fell approximately 150 feet from the Lexus Level to Field Level concourse behind home plate. He and a small group of friends were apparently exiting the stadium via the staircase.
While the Braves and Atlanta Police Department are still investigating, there is a belief that Hayes may have been sliding down the handrails before falling approximately four levels.
Mark Bowman is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.