Listen 🎧 | Decoding the Cornfield Cipher

Episode Summary

On a scorching June afternoon in 1999, the decomposing body of 41-year-old Ricky McCormick was discovered face down in a West Alton, Missouri cornfield—miles from the nearest public transit line. McCormick didn’t drive, had no known missing persons report filed, and died under circumstances so obscured by the summer heat that investigators struggled to determine a cause of death.

In his pockets were two encrypted notes filled with dense, cryptic lines of letters, numbers, and symbols. For years, the FBI’s Cryptanalysis unit and global puzzle-solvers treated the “Cornfield Cipher” as a masterwork of encryption. But what if the code wasn’t a criminal key at all? In this episode, host Kyle Fields re-examines the evidence, breaks down the notes line by line, and presents a compelling argument: the “uncrackable cipher” was simply an illiterate man’s personal shorthand for navigating his world.

Key Timestamps & Topics

* Cold Open: The Body in the Field

The discovery near Route 367, the severe decomposition, and the initial, controversial classification of McCormick’s death.

* The Missing Days of Ricky McCormick

Tracing Ricky’s final known movements in St. Louis, his reliance on public transit, and the complete absence of a missing persons report.

* Two Pages in a Pocket

The FBI steps in, the Cryptanalysis unit gets stumped, and the case goes public in 2011 to a fascinated internet audience.

* The Family vs. The Cryptographers

Reconciling the paradox of a man described by his family as functionally illiterate with notes that stumped elite codebreakers.

* Re-Examining the Cipher: Bus Routes Over Encryption

Mapping the repeated numbers (71, 74, 75, 29, 173) to St. Louis MetroBus lines and North County transit hubs.

* Translating the Shorthand

How fragments like “ON DE 71,” “PRSE,” and “NCBE” shift from cryptic jargon to phonetic street directions and transfer markers.

* The Unanswered Homicide

Why solving the notes demystifies Ricky’s life—but exposes the haunting gap of how he ended up in a field buses couldn’t reach.

Key Takeaways & Case Highlights

* The Scene: Ricky McCormick was found on June 30, 1999, in rural St. Charles County, an area known as a dumping ground rather than a pedestrian destination.

* The Cipher: Two notes containing over 30 lines of text (featuring clusters like WLD 74 29–67 NCBE) remained unreadable by standard substitution or cryptographic systems for decades.

* The Transit Theory: When viewed through the lens of St. Louis transit, the “code” matches local MetroBus route numbers, major corridors (Delmar, Santa Fe, Redman), and transit hubs like the North County Bus Exchange (NCBE).

* The Case Status: While the notes likely record daily movement rather than a secret network, McCormick’s death remains classified as a homicide, with no witnesses or suspects identified to date.

Resources & Further Reading

* FBI Vault: Ricky McCormick’s Encrypted Notes (Original high-resolution images released during the 2011 public appeal)

* Metro Transit St. Louis: Historical route maps for North County corridors

* Major Case Squad of Greater St. Louis: Archived case notes on the 1999 investigation

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