FBI says Nashville Christmas bomber sent materials out to people beforehand

NASHVILLE, Tenn. -- The search continues for answers on a motive for suspected Christmas day suicide bomber, Anthony Warner.

The FBI said today they believe Warner sent materials expressing his viewpoints to acquaintances all over the country. They are asking those who received these materials to call them.

Metro police believe Warner blew himself up in his RV along 2nd Avenue, but they do not know why.

The attack displaced hundreds of residents and more than 45 businesses in downtown Nashville, causing catastrophic damage. Three people were injured.

To date, investigators have not been able to confirm if the AT&T building was actually a target.

Anyone who received anything from Warner is urged to call 1-800-CALL-FBI.