NASHVILLE, Tenn. — Investigators in Nashville are searching properties associated with Anthony Quinn Warner and are working to determine whether he was the person blown up in an RV Christmas morning, according to ABC News.

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The FBI is reportedly trying to formally identify the human remains found at the scene of the blast in downtown Nashville. ABC News is also reporting that other investigators are working with behavioral analysts to help them understand what prompted someone to commit the “intentional act” of blowing up the RV after warning people to stay away.

According to ABC News, authorities are also working to pursue information as to why the specific location in Nashville was selected and the composition of the explosive.

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A Google street view image of Warner’s address shows an RV in a fenced-in section of the yard. ABC News is reporting the RV appears to match the one seen on a security camera image prior to the blast. You can view that by clicking HERE.

Near the crime scene in Nashville, some of the evidence collected was flown to the FBI crime lab in Quantico, Virginia for forensic analysis, law enforcement sources tell ABC News

Post-blast investigators swabbed the scene for residue samples that will be sent for lab analysis to determine the types of chemicals used in the explosive device, law enforcement sources said.

More than 250 FBI personnel from at least seven field offices are in Nashville working on this investigation, including special agents, analysts and professional staff, conducting interviews, collecting evidence and coordinating with partner agencies including ATF, state and local investigators.

Police around the world are also taking action.

“Due to the circumstances that took place Dec, 25th in Nashville, we ask that patrol divisions provide extra watch on any AT&T building located in any metropolitan building across the nation,” according to the text of a federal bulletin obtained by ABC News. “AT&T partners with law enforcement, firefighters and first responders. We are public safety partners giving connectivity to agencies across the country.”

Investigators are also using drones to survey the massive scene.