"I looked over at him, and I knew he was gone," he said.
But Quamaine Rickman isn't forgotten, and Mr. Owen is urging the public to assist law enforcement in tracking down the suspect in this July 14 slaying.
The Richmond County Sheriff's Office has identified Donald Gamble as the suspected shooter, but hasn't been able to locate the man who has ties to south Georgia and Florida.
In August, the sheriff's office began offering a $1,000 reward for information leading to Mr. Gamble's arrest.
"To say that I am hurt by this incident is understating the issue. I lost my best friend and the closest person I had to family all in 10 minutes," Mr. Owen said.
A picture of Mr. Rickman, a man he described as "probably one of the nicest people I ever met in my life," still sits in Mr. Owen's office, and his friend's bedroom remains as it was before he was killed.
For about a year, Mr. Rickman lived with him, and he had been training to take Mr. Owen's place on his delivery route for The Augusta Chronicle.
The route was getting a little too much for Mr. Owen, 61, to do alone, so Mr. Rickman began working with him, Mr. Owen said. They would pick up the newspapers and then deliver them on a golf cart.
It was on such a morning when the killing occurred.
Before picking up the newspapers, Mr. Rickman asked to stop and get $10 from someone who owed him around the corner on Walker Street, his roommate said. At some point an argument broke out, and shots were fired.
Mr. Rickman was struck in the back after getting into the vehicle.
"Basically, he died in my arms on the way to the hospital," he said. "Over $10? It makes no sense to me. Absolutely no sense."
Mr. Owen said his friend posed no threat to anyone, and he wants to know why Mr. Rickman was slain.
The killing took two lives - that of his roommate and that of the man who killed him, Mr. Owen said.
"I don't have any family," Mr. Owen said. "Quamaine was my family."
Reach Greg Gelpi at (706) 828-3851 or firstname.lastname@example.org.
If you have a tip on the whereabouts of Donald Gamble, who also goes by the names "Do-Ball" and "Duvall," call the Richmond County Sheriff's Office at (706) 821-1020 or (706) 821-1080. The office's 24-hour tip line is (866) 939-5050.