The homeowner told police that prior to the shooting, he found someone in his garage trying to steal a bike.
After confronting the stranger, the man said the burglar revealed he had a gun and shot him in the leg before running away. The bullet also grazed the victim's son.
Surveillance video shows that around 9 a.m., a K-9 tracked the alleged shooter, identified as 17-year-old Jacobi Chomicki, to a neighbor's SUV parked behind Lenora Road. Police said he was one of the people who ran from officers responding to the car break-in earlier in the morning. He was taken into police custody.
"It was scary because I don't know what's going to happen," Gerardo Valdez said.
Valdez and his wife, Julia Paces, gave WSB-TV the surveillance video from behind their home. "We didn't know what's going on, what happened, and they told us to go back in the house."
The victims' injuries appear to be non-life-threatening. They are recovering at home.
Police said they are still looking for the second suspect who took off running.