Authorities are investigating a possible new ransom note in the disappearance of Nancy Guthrie, nearly eight months after she vanished from her Arizona home, the Pima county sheriff's department announced Monday. Because nothing says 'we're on it' like a fresh note eight months later.

The sheriff's department and the FBI Guthrie taskforce were recently tipped off to the possible ransom note, along with social media comments related to it. Investigators are now working to determine its credibility - a process that apparently involves squinting really hard at the internet.

Officials did not immediately release details on how they found the note or what it contained, presumably because that would make things too easy.

In July, authorities released two ransom notes initially sent to a Tucson television station days after Nancy Guthrie - mother of Today show host Savannah Guthrie - went missing on 1 February from her home outside Tucson.

The first note, sent on 2 February, claimed Nancy Guthrie was safe but scared and would be released unharmed once her captors received $4m in cryptocurrency. The second note, sent on 6 February, said Guthrie died shortly after she was kidnapped. Authorities have not said whether Guthrie is still alive, which is a pretty important detail to leave hanging.

No suspects have been arrested in her disappearance. The investigation is dogged by unanswered questions, such as how many people are believed to have taken part in her abduction and whether she was taken by someone who knew her. The FBI had also released surveillance videos of a masked person who authorities said appeared to tamper with a camera on Nancy Guthrie's front porch and block it with a plant - because nothing says 'professional operation' like foliage-based evidence tampering.

Nancy Guthrie's family has shared their pleas for information in videos posted to social media, which is unfortunately the modern equivalent of putting up posters on telephone poles.