Dallas, TX – A former United States Postal Service employee has pled guilty to participating in a bribery scheme involving USPS service contracts, authorities announced this week.
Zechariah Yi, 52, of Aurora, Colorado, admitted to one count of Receiving a Bribe by a Public Official. Yi was indicted in March 2025 for accepting payments from trucking companies in exchange for helping them secure USPS service contracts.
Court documents show that while employed as a Senior Network Operations Analyst at the USPS, Yi solicited and received approximately $1.5 million in kickbacks from the owners and associates of three trucking companies. The contracts at the center of the scheme paid the companies a combined total of roughly $15 million.
Yi faces a statutory maximum sentence of 15 years in federal prison. His sentencing is scheduled for March 26, 2026.
He is the fourth individual to plead guilty in connection with the scheme. Earlier, former USPS employee Tai Rho and trucking company owners Wan Jin Yoon and Hong Jin Yoon each pled guilty to Conspiracy to Commit Honest Services Wire Fraud. Each faces up to five years in prison, with sentencing set for early 2026.
The FBI Dallas Field Office and the USPS Office of the Inspector General investigated the case. Assistant U.S. Attorneys Marty Basu and Joshua Detzky are prosecuting the matter.
