It was probably started remotely. I find it odd that Ms. Williams was on the phone to 911 over rapid gunfire when the bomb started, as if the bomb maker was listening to a police scanner.
By Yihyun Jeong, Brinley Hinema, Joshua Bote, ane Jessica Flores
...Betsy Williams, (click here) the owner of The Melting Pot, a restaurant across the street from the explosion, told The Tennessean, part of the USA TODAY Network, that guests reported the RV was stationed there since Thursday night.
Williams, who lives in a loft apartment on the third floor of the restaurant building, said she heard the sound of loud, rapid-fire gunshots at about 4:30 a.m. After multiple rounds of gunshot sounds, Williams said she called 911. Then, she said, she heard a repeated warning she said came from the RV parked outside her building.
“Evacuate now. There is a bomb. A bomb is in this vehicle and will explode,” she remembers the recorded warning saying. Then, she said, the voice started a 15-minute countdown.
Her family headed to Nissan Stadium, about a half-mile away and waited. When they didn’t hear an explosion, they headed back. That was when they saw a fireball fly over the AT&T building on Second Avenue....