On a late spring day in 2017, a private investigator parked outside a fitness center in an Atlanta strip mall and covertly recorded video of a personal trainer as she entered her business.
Forty-five minutes later, the investigator took photos as the woman returned to her car, stowed her gym bag and drove away. He next followed her for 25 minutes to the home of her then-boyfriend, Tom Fanning, who, as chief executive of Southern Co., had for years been one of the energy industry’s most powerful figures.