The Tennessee Highway Patrol has said a robot was sent to investigate the truck and no device was found. The company suffered widespread outages in Tennessee and other states after a bomb in a recreational vehicle exploded near one of its facilities in downtown Nashville. Sheriff’s officials said the truck had been playing the audio when it was parked at a convenience store around 10:30 a.m. at the Crossroads Market in Walter Hill. Sheriff's officials did not specify what the box truck was playing. ___1:15 p.m.Nashville Police say a Tennessee man named Anthony Quinn Warner is under investigation in connection with the Christmas Day bombing that rocked downtown Nashville.