The victim was employed by Harris Camden Realty, which owns the industrial park and leases it to more than 10 businesses - including ReCommunity Recycling, where the fatality occurred - and a construction materials retailer, said vice president Thomas Harris III.
Harris said the victim was cleaning the flat roof of the ReCommunity building.
"He was a great worker, he was an honest guy, a hardworking guy," Harris said. "We are deeply saddened by the loss of life today."
Harris said the roof "had some undetectable issues."
Harris said the victim was one of three employees cleaning the roof. One employee tried to grab the victim as he fell about four stories, Harris said.
The Prosecutor's Office, which initially handled the case, handed the matter over to the Occupational Safety and Health Administration, the U.S. Department of Labor office that handles workplace safety and health, because it is not a criminal matter.
Leni Uddyback-Fortson, a Department of Labor spokesman, confirmed OSHA was investigating.
She said OSHA had no record of previous involvement with Harris Camden Realty. The death is the company's first fatality, she said.
Contact Darran Simon at 856-779-3829 or at firstname.lastname@example.org, or follow on Twitter @darransimon.