An argument over mayonnaise at a Downtown Atlanta Subway ended with one worker dead and another in the hospital.

Police say the shooting happened around 6:30 p.m. at a Subway located at a gas station on Northside Drive Southwest.

The deceased is identified as 26-year-old, Brittany Macon, while the other is identified as 24-year-old Jada Statum. Jada is currently in the hospital and is in a critical condition, as reported by The Atlantic Journal Constitution. It is also reported that at the time of the shooting, Jada’s five-year-old son was also present in the restaurant.

"This was a very tragic situation that did not have to occur," Deputy Chief Charles Hampton Jr. said during a news conference Monday. "The suspect came inside the restaurant (to) order a sandwich and there was something wrong with the sandwich that made him so upset that he decided to take out his anger on two of the employees here."

A 36-year-old male was arrested Sunday night, Hampton said. He declined to identify the suspect citing the ongoing investigation. Hampton said that the suspect used a handgun during the incident.

Addressing the incident, Willie Glenn, co-owner of the Subway restaurant, mentioned that 24-year-old Jada was shot twice after she pushed her son away to keep him from being hurt. “It just breaks my heart to know that someone has the audacity to point a weapon, and shoot someone for as little as too much mayonnaise on a sandwich,” Glenn told WSB-TV.

The shooter who attacked the two employees had been in the store multiple times before the incident. But this time, he lost his temper to an extent where he killed one employee and injured another. The case erupted a discourse around the contentious gun laws in the United States.