DeKalb County, Ga. (CW69 News at 10) – The Georgia Bureau of Investigation (GBI) is investigating a police shooting in Decatur involving an off-duty DeKalb County Sheriff’s Office (DKSO) deputy, according to a GBI statement.

The preliminary investigation indicates that at approximately 1:10 p.m., a male customer entered Big Bear Grocery at 2849 Candler Road in Decatur.

READ MORE: Child Tax Credit: Monday Is Deadline To Opt Out Of Advance Monthly Payments

While checking out, the customer, identified as Victor Lee Tucker, Jr., 30, of Palmetto, argued with a cashier about his face mask.  Tucker left the store without making his purchase, but immediately returned inside.  Tucker walked directly back to the cashier, pulled out a handgun and shot her.  The DeKalb County Police Department identified her as Laquita Willis, 41.

Tucker then began shooting at a DKSO deputy who was attempting to intervene while working off-duty at the supermarket.  The deputy and Tucker exchanged gunfire, and both were wounded during the shootout.  Two responding DeKalb County Police Department (DKPD) officers arrested Tucker as he was attempting to crawl out the front door of the supermarket.

The cashier was taken to Grady Memorial Hospital where she was pronounced dead.

READ MORE: Delta Variant Presents Challenges To Metro Atlanta Schools

Tucker was also taken to Grady and is listed in stable condition.

The DKSO deputy is being treated for his wounds at Atlanta Medical Center and is in stable condition.

A second cashier was grazed by a bullet.  She was treated for her injury on scene.

MORE NEWS: Annual Atlanta Dogwood Festival Returns To Piedmont Park August 6-8

The GBI will continue its independent investigation.  Once completed, it will be turned over to the DeKalb County District Attorney’s Office for review.