Forensic linguists analyze ransom notes in Nancy Guthrie kidnapping case

Six months to the day after Nancy Guthrie vanished from her Arizona home in January, police made a calculated decision: release the ransom notes. Two of them. The first demanded millions in Bitcoin. The second claimed she was dead. On Friday, authorities in Pima County hoped that by putting these brief, typed messages into public view, someone—a friend, a colleague, a neighbor—would recognize something in the way the words were arranged, the way they were spelled, the particular rhythm of their construction. Someone might say: I know that voice.

Guthrie was 84 when she disappeared. Her daughter is Savannah Guthrie, the television news presenter. The case had generated months of investigation with little to show for it—few leads, fewer suspects. A kidnapping of an elderly woman with no obvious motive is not the kind of crime that typically floods police tip lines. So investigators turned to an older tool: the analysis of language itself.

William Eggington, a retired linguistics professor from Brigham Young University now working as a forensic consultant, explained the premise to the BBC. Every person carries what linguists call an idiolect—a word print, as distinctive as a fingerprint. The way someone constructs a sentence, the words they choose, their habits of punctuation and spelling—these things accumulate into a pattern that is, in theory, recognizable. But Eggington was careful to add a caveat: investigators must maintain scientific skepticism, especially when working with so few words. And they must account for the possibility that a writer might be deliberately disguising their natural voice.

The first note arrived at a local television station on February 2nd. It began formally: "Hello Savannah, we have your mother Nancy. She is safe but scared." The heavy use of passive voice—"she will be held," "she will be released"—and the if-then sentence construction suggested someone with at least a high school education, possibly some college. But then came a telling detail. The writer spelled "received" correctly once, then misspelled it as "recieved" later in the same note. This suggested either carelessness or a lack of close attention to editing. The person was not particularly attuned to the proper spelling of the word.

Four days later, a second note arrived. The tone shifted. "We did not fully grasp the seriousness of her physical condition," it read. "She perished shortly after she was taken. We believe it was heart related. She is buried in nature now." Here, Eggington observed, the writer was employing what he called dehumanizing language—referring to Nancy in the third person, deflecting blame for her death onto her own body. The phrase "buried in nature" was distinctive, academic in tone, possibly deliberate obfuscation. Yet the stilted quality of the language might itself be a disguise, an attempt to sound like someone the writer is not.

Both notes, Eggington concluded, were written by the same person. The evidence lay in small, repeated habits: the use of commas instead of periods to separate thoughts that should have been two sentences. These micro-patterns are what investigators would use to build a profile of the writer—and later, if a suspect emerged, to compare against known samples of their handwriting or typing.

But six months is a long time. Jeffrey Adler, a historian of American crime at the University of Florida, acknowledged that identifying a suspect from ransom notes alone "seems like a stretch" at this point. Kidnapping itself is not a common crime. Most involve custody disputes. The historical precedents—the Lindbergh baby in the 1930s, Frank Sinatra's son in the 1960s—involved kidnappers with clear financial motives and, often, connections to the family. There was one notable exception: Theodore Kaczynski, the Unabomber, was identified in 1996 when his brother recognized his writing in the published manifesto and came forward.

Savannah Guthrie spoke to reporters hours after the notes were released. "We are desperate," she said. "We need someone to come forward. Someone knows something. Someone suspects something. Someone recognizes the writing in the ransom demand notes." The appeal was direct, almost pleading. Six months of silence had yielded nothing. Now the family was betting that the peculiar architecture of a stranger's prose—the way they built sentences, the words they chose, the errors they made—might be the thing that finally broke the case open.