The person who claims to know the identities of Nancy Guthrie's kidnappers has sent another email to TMZ, this time alleging he has video evidence.
He says the video shows the "main guy" with Nancy on what was probably her last day alive.
TMZ authenticated the email, confirming it came from the same sender as previous messages. The Bitcoin address and alias matched.
The sender dismissed the FBI's theory that the email might have been written by a woman, stating, "I am not the idiot who recently called in a tip about her burial site in Mexico."
He claims there are two kidnappers, reiterating his earlier statement that more than one person was involved.
In the new email, he writes, "I have a phone stashed in a secure location guaranteeing both the information it stores and the safety of the phone."
He describes the contents as "a short video of the main guy with Nancy the day that was probably her last, pictures of both involved, names and addresses and age."
The sender says the phone is in a "location easy to access if you know where it is" and demands one Bitcoin for the password, providing a new Bitcoin address.
TMZ responded by asking him to send a single screenshot of Nancy to verify his claim. The email has been forwarded to the FBI.
Meanwhile, Savannah Guthrie became emotional on "TODAY" as she again pleaded for anyone with information about her mother to come forward.
