FBI Agents Canvas Gun Stores In Nancy Guthrie Kidnapping Investigation

FBI agents are canvassing gun stores in the Tucson area with a list of names and photos of potential suspects in Nancy Guthrie's kidnapping. Authorities are looking for someone who bought the gun seen in the surveillance video at Guthrie's front door. The photos and names were apparently obtained by searching through Walmart's sales records for whoever bought the backpack the suspect wore. Meanwhile, DNA samples found in Guthrie's home and in a discarded glove are being run through commercial databases.