An 18-year-old Baton Rouge man was indicted Wednesday on a second-degree murder charge in the Aug. 8 slaying of a Tennessee truck driver.

Landry Carter, 11726 Tams Drive, faces life in prison if found guilty as charged in the killing of Keith Odom, who authorities say was fatally shot while repairing a tire on his 18-wheeler in the Longbow shopping center parking lot on Florida Boulevard shortly before 8 a.m.

Investigators obtained surveillance video from a nearby business they say shows Carter walking toward Odom's truck.

Carter, according to an arrest report, killed the 49-year-old Odom during an armed robbery. After Odom turned over his valuables to Carter, the 18-year-old "took a step back and fired a single shot" into the victim's midsection, the report says.

"He gave the man his wallet, phone, etc. Why, oh why, did he have to take his life?" Odom's parents, Paulette and Kenneth Odom, of Jonesborough, Tenn., wrote in a letter published in The Advocate. "Our lives will never be the same. There is a hole in our hearts that will never be filled."

They also said they have no hard feelings toward the good people of Baton Rouge.

"Based on our review of the evidence and witness statements we believed that the evidence more clearly supported a second-degree (murder) indictment rather than a first-degree (murder) charge," East Baton Rouge Parish District Attorney Hillar Moore III said.

The case has been assigned to state District Judge Richard Anderson.

Carter also has been linked to a string of nighttime armed robberies all within a mile of his home. One of those robberies occurred in the same shopping center where Odom was killed.

Follow Joe Gyan Jr. on Twitter, @JoeGyanJr.