Investigators analyzing new message in Nancy Guthrie case

Tonight, during the agonizing wait for answers now six days into the search for Nancy Guthrie, the FBI and Puma County Sheriff's Department say they are aware of a new message regarding Nancy Guthrie and are actively inspecting it for its authenticity. Authorities have not said what the message contains, but NBC News has reviewed a copy of what authorities describe as a possible ransom note sent to three news organizations earlier this week. The contents of that first letter are consistent with the descript ...