Nashville

A city official told NPR that forensic investigators are now trying to match DNA from human remains found at the blast site to DNA collected from a home searched by federal authorities on Saturday.

A day after the early Christmas explosion injured three people and damaged dozens of buildings in downtown Nashville, large swaths of the state's communications networks are still down.

The blast could be felt for miles and damaged nearby buildings. The FBI is now leading the investigation, working with local police and the Bureau of Alcohol, Tobacco, Firearms and Explosives.

"I did that completely out of a selfish act," said James Shaw Jr. after disarming the gunman. "I was completely doing it just to save myself. Now, me doing that, I did save other people."