The shooter, identified by police as UK Thang, 29, moved to Collierville in the summer of 2020 and was a third-party vendor working within Kroger, according to the update.
Collierville police are processing electronic evidence, as well as crime scene vehicles, and are interviewing other potential witnesses in the case, according to the update.
“With active police investigations, many of the details of the case cannot be shared until the investigation is complete,” the statement added.
When the shooting began Thursday, 44 employees were working at the store, Police Chief Dale Lane said. In the end, at least one person, client Olivia King, died in chaos, Kroger said.
In all, the man shot 10 employees and five customers. Of the injured, four victims remain at Regional One Hospital in Memphis in stable condition, according to the statement.
The shooter was found dead, apparently from a self-inflicted gunshot wound, Lane said.
In the coming days, city and Kroger officials are expected to meet to discuss the reopening of the Kroger store, as well as next steps involving employee and community support, according to the update.
Kroger spokeswoman Teresa Dickerson said the grocery chain is providing advice to store workers.
Employees hiding in freezers
Around 1:30 p.m. CT Thursday, the Collierville Communications Center received a 911 call about an active shooter at the Kroger, Lane told reporters outside the store. In fact, there was a patrol near the store when the 911 call came in, Lane said.
Brignetta Dickerson was working at the cash register when she said the shooting started in the deli section.
“He kept shooting, shooting, shooting,” Dickerson said. “He shot one of my co-workers in the head, and then he shot one of the clients in the stomach, and then my other client suffered similar cuts from the asphalt.”
Dickerson, who has worked at Kroger for 32 years, said she was fine, but a little scared and shaky.
When officers entered the store, they found people who had been shot. A SWAT team, patrol officers and other members of the command staff went from hall to hall and room to room, pulling out employees who were in hiding and helping injured victims, Lane said.
Some people “were (on the ground) pretending to be shot at,” and an employee who ran to the roof was eventually escorted down, he said.
Several employees were found hiding in freezers or locked in offices. “They were doing what they had been trained to do: run, hide, fight,” Lane said.
The shooting ended minutes after police received a call, and investigators believe the attacker committed suicide “as we approached the scene,” Lane said.
CNN’s Jenn Selva and Steve Almasy contributed to this report.