On the Christmas night, Tennessee man Anthony Quinn Warner parked an RV motorhome in front of the AT&T network center on 2nd Avenue in Nashville. Around 5 a.m., several loud bangs, recognized by locals as gunshots, were heard. Some 5-15 minutes later, there were more gunshots, prompting people to call 911. Around 5:30 a.m., a recorded message began blasting from the RV, warning the vehicle was going to explode. Then came a 15 minute countdown and then an explosion. In short order, the FBI had 250 agents on the task, trying to determine who just bombed downtown Nashville. The investigation zeroed in on Warner, 63, of Antioch who had an RV in his backyard that looked identical to the one Nashville police identified as the source of the explosion. Human tissue found at the blast scene confirmed Warner’s identity, FBI Memphis announced on Dec. 27 and U.S. Attorney for the Middle District of …