As some were working to apply pressure to the wound, someone asked who shot her. Whisby said Reeves, who sat in his wheelchair, told them Hunnicutt had tried to hit him with her car.
"It was just horrific. We were working on her the whole time, trying to give her CPR," Whisby said.
As Reeves spoke, Whisby said, "I just blocked that part out. I was too busy trying to help her. We were so focused on her that we didn't even hear the police cars."
Whisby said she was still struggling to understand everything she witnessed.
'I thought about it all night, all day and all night. Is this really real?" Whisby said. "How can somebody just take someone's life like that and not show any emotion?"
When police arrived, Hunnicutt was in cardiac arrest and officers began performing CPR. She was taken to the Medical Center of Central Georgia, where the trauma team pronounced her dead at 1:25 p.m., less than a half-hour after the shooting.
The man gave a statement to detectives, Gaudet said, but authorities are not revealing what he said. Meanwhile, police were asking for the public's help in identifying additional eyewitnesses.
Hunnicutt is married, and her husband was on the road for his job with a dental lab company when the shooting happened, officials said.
Whisby, the eyewitness, said people did what they could to try to help the victim.
"It did not do any good, but I hope her family knows that there were some strangers there who were very concerned and trying to help her and praying for her to make it," Whisby said.
Jones, who has been with the coroner's office for 22 years, said he can't recall a case such as this in the central Georgia city 80 miles southeast of Atlanta.
Said Jones: "I've never seen anything like it."
Associated Press writer Christina Almeida contributed to this report.