A thread of the known timeline of the #nashvilleexplosion. At 1:22am on Christmas this RV was first recorded by surveillance cameras on Second Avenue in downtown Nashville. It then parked on the west side of the street right next to the AT&T Data Center. @NC5 1/15

At around 5:30am downtown residents heard gunfire on Second Avenue and calls were made to police. A short time later came another round of gunfire. When police responded they found the RV playing a recorded warning that there was a bomb inside. 2/15

At least six brave @MNPDNashville officers went door to door in the immediate area getting the people who were home on Christmas morning to evacuate. @JohnCooper4Nash called the officers “heroes” and says, “there would have been life lost if it wasn’t for their courage.” 3/15

4/15: At 6:30am, with the recorded warning still playing, the RV exploded.

5/15: At least 41 businesses on and around Second Avenue were damaged, many extensively. One building collapsed. The explosion was reportedly heard from Murfreesboro to Lebanon and the fireball was captured in this picture from I-24.