"Mama, I tried to protect my baby," she wailed to her mother, Rosa Johnson.
Corey Garnett, 20, was shot multiple times in the chest just before midnight Sunday and was pronounced dead about 40 minutes later.
Highly distraught, Debra Garnett spent several hours at the Richmond County jail while investigators sought information about the shootings.
"They held me down there; they wouldn't let me go; but I knew my baby was dead," Garnett said. "He died alone."
Hudgins, who was shot in the jaw, was taken to Medical College of Georgia Hospital, where she was in stable condition, according to Richmond County sheriff's Sgt. James Kelly.
The couple worked at Arby's -- he on Gordon Highway and she on Washington Road, Garnett said.
Garnett believes the police have suspects. Corey Garnett had had a recent falling-out with gang members that he'd been associated with in high school, his mother said.
Chief Deputy Coroner Mark Bowen said an autopsy will be conducted today.
The death is Richmond County's 27th homicide of the year, Kelly said. It also was the second reported homicide of the weekend.
About 3:30 a.m. Saturday, Carl Bush Sr., 56, was shot in a dirt lot beside the old train depot on Reynolds Street, near St. Paul's Episcopal Church and the Augusta Museum of History.
Carl Bush Jr. said he hoped someone would come forward with information about the death of his father, who will be buried Thursday in Johnston, S.C.
It remains unclear to the family why the elder Bush, who worked as an auto mechanic, was downtown at 3:30 a.m., his son said.