A new development has emerged in the disappearance of Nancy Guthrie, with federal authorities reviewing an anonymous email sent to TMZ. The email claims that a hidden cellphone contains critical video and names related to the case. The sender of the email is reportedly linked to previous messages through a Bitcoin wallet and alias.

They are demanding 1 Bitcoin in exchange for the information. Further details on this development can be found through KTXS, the local ABC affiliate, which is following the story and providing updates as more information becomes available.