The Atlanta Police Department on Sunday shared a photo of the woman, who appeared to be white, and was dressed in a black with her face largely covered.
“@StopCrimeATL is offering a $10,000 reward for information on the individuals responsible for starting a fire that led to the destruction of a Wendy’s restaurant at 125 University Avenue,” the department said in a tweet that included three photos of the suspect.
The police also linked to a Twitter video of a suspect appearing to try to set fire to the Wendy’s restaurant from the outside.
“Look at this white girl. Look at the white girl trying to burn down the Wendy’s. This wasn’t us,” a man filming the arson said in the video.
Brooks, 27, was shot dead by officer Garret Rolfe during a foot chase following a field sobriety test in the parking lot of an Atlanta on Friday night.
Rolfe was fired Saturday and could potentially face a felony murder charge, Fulton District Attorney Paul Howard told CNN earlier Sunday.
An autopsy report released on Sunday said Brooks died due to organ damage and blood loss from two gunshot wounds to the back.