EntityQ3855329· pop 5· linked from 8 articlesRicky McCormick's encrypted notesSign in to saveUnsolved encrypted message associated with unsolved homicideConnectionsSt. Louis Post-DispatchEntityMissouriEntityemailEntityFederal Bureau of InvestigationEntitycryptographyEntityFox NewsEntityThe Daily TelegraphEntityZodiac KillerEntitySt. Charles CountyEntitycryptanalysisEntityWest AltonEntityracketeeringEntitystatutory rapeEntitySomerton ManEntityIsdal WomanEntityGreater St. LouisEntityAmerican Cryptogram AssociationOrganizationlist of ciphertextsEntityCategories1999 documents1999 in Missouri1999 murders in the United States20th-century manuscriptsCrimes in MissouriCrowdsourcingFederal Bureau of InvestigationForensic evidenceJune 1999 crimes in the United StatesMurder in MissouriSt. Charles County, MissouriUndeciphered historical codes and ciphers