“We concluded that an individual named Anthony Warner is the attacker. He was present when the bomb exploded and then he died,” Cochran said.
DNA taken from the scene was compared to Warner’s by forensic analysts, Tennessee Bureau of Investigation Director David Rausch said.
The Rutherford County Sheriff’s Office says on Twitter that law enforcement officers had closed a section of the road in Wilson County, east of Nashville, to investigate a white box truck parked on the side of the road.
Authorities had sent a robot to investigate the vehicle while officers stayed behind, monitoring the situation.
Sheriff’s deputies said the truck had been playing audio when it was parked at a convenience store around 10:30 a.m. (local time) at Crossroads Market in Walter Hill.
The driver exited the parking lot and was pulled over by officers in nearby Wilson County.
Authorities said the driver has been detained by police.
A Wilson County dispatcher said the road that was closed was Murfreesboro Road between Cedar Forest Road and Richmond Shop Road.
Agents said they had also evacuated residents in the area as they continued to investigate.
Before the RV exploded, he issued a recorded warning asking people to evacuate, and then the 1964 song “Downtown” by Petula Clark.
Sheriff’s officials did not specify what the truck was playing at.