Transcript for Nashville bombing suspect identified from DNA evidence
Nashville. Federal authorities with confirming 63-year-old Anthony Quinn Warner was the domar. Among the evidence, surveillance footage leading up to the moment of the blast. A second angle shows the deadly force damage across multiple city blocks. Phone communications knocked tonight, the FBI confirms DNA from human remains recovered at the crime scene belong to Warner. His exact motive remains a mystery. Tonight, chilling new details from the hero officers who raced to evacuate residents. Some call it a Christmas miracle that no one else was killed. ABC's Marcus Moore leads us off tonight in Nashville. Reporter: Tonight, investigators identifying the bomber behind the Christmas day rv explosion that rocked downtown Nashville. Officials calling 63-year-old Anthony Quinn Warner as the suspect and confirming his remains were found at the scene. An individual Anthony Warner is the bomber. He was present when the bomb went off and that he perished in the bombing. We base this conclusion on forensic evidence, including DNA evidence. Reporter: Tonight, for the first time, the hero officers reliving the moments they rushed to evacuate residents just minutes before the rv exploded. I feel very lucky to be alive. Reporter: Officer Brenna hosey among the first to start banging on doors. We spoke to a mom, she said a female police officer came to them. Do you remember that moment? We needed her to evacuate. She said, okay, let me get my kids. And that kind of just like put my heart up in my throat. Reporter: As the officers scrambled, they described an ominous recording coming from the rv, warning of an imminent explosion, and then music. It's "Downtown" by Petula Clark. Reporter: At 6:30 that morning, the rv exploded, sending a powerful shockwave through the city. Officer wells was closest to the blast and had been trying to reach fellow officer Amanda topping. I literally hear god telling me to turn around and go check on topping, who was by herself down on Broadway, and -- as I turn around, for me, it felt like I only took three steps and then the music stopped, and as I'm walking back towards topping now, I just see Orange and then I hear a loud boom. And as I'm stumbling -- it rocks stumbling -- I just tell myself to stay on your feet, stay alive. Reporter: The force of the blast left officer wells with temporary hearing loss, but thankful to escape. I never grabbed somebody to hard in my life. Reporter: In the search for answers, investigators are focusing on at least two different locations in suburban Nashville. ABC news obtaining this video of agents carrying out bags of evidence at a home associated with Warner. A Google maps image of the house from may 2019 shows what appears to be a similar rv parked right outside. Neighbors confirming it rarely moved but Christmas morning it was gone. It just stays there. So this was something that looked suspicious that it wasn't there anymore. Reporter: Court records show Warner once owned and lived in the home being searched, but recently transferred the deed to a woman in California. It may be only part of the puzzle. Tonight there's still no official motive for the explosion that destroyed part of the city but left these officers more bonded and a community grateful to its heroes who saved lives. I feel like we had a Christmas MI we had two angle up on our doorstep dressed in police uniforms on Christmas morning. Many in Nashville counting their blessings tonight. Marcus Moore joins us from Nashville. Marcus, it sounds like investigators believe Warner was acting alone. Reportet's right, linsey. They say he was not on law enforcement's radar before this. The mayor said it was possible the AT&T building on this blo was the target. Late today, multiple sources tell ABC news that investigator believe Warner was motivated at least in part by paranoia over 5g technology. Linsey? Still unclear exactly what that motivation was. Thanks so much, Marcus.
This transcript has been automatically generated and may not be 100% accurate.