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Handcuffs photographed Tuesday, December 26, 2017, in Baton Rouge, La.

One person was accidentally shot Sunday night when he and two other men gathered outside a Denham Springs Walmart to discuss the sale and purchase of a handgun, which accidentally went off, according to the Denham Springs Police Department.

Officers arrived at Walmart about 9 p.m. in response to a report of a shooting. Investigators learned the incident occurred inside a car behind the store where three friends who work together at Walmart were sitting.

Charleston Q. Topps, 19, of Greensburg, was showing off the 9 mm handgun, said Denham Springs Police Chief Shannon Womack.  

"It was in Charleston's hand. He was showing it to the other one when it went off," Womack said. 

The bullet round passed through the hand and entered the leg of another man in the car, Womack said. 

Topps subsequently put the gun inside a backpack and dumped it in a nearby creek in an attempt to dispose of it, Womack said. For that reason, Topps was arrested on an obstruction of justice count. 

The 19-year-old Marksville man who was shot was transported to a hospital for his non-life-threatening injuries, police said.

The third person in the car has not been identified.

The police chief said all three men told consistent stories, and there will not be further criminal charges. He said the men remained at the scene and complied with police.

"Everybody involved told us it was an accident," Womack said.

The incident was reported to Denham Springs Police by two Baton Rouge Police officers nearby who heard the pop, Womack said. One officer caught the incident on camera, including Topps throwing the gun in the creek, Womack said.

The gun was recovered from the creek and is being tracked to check if it was stolen, Womack said.

The Walmart in Denham Springs is located 904 S. Range Ave.

Follow Caroline Grueskin on Twitter, @cgrueskin.