A former employee of the United States Postal Service (USPS) has admitted to participating in a bribery scheme related to service contracts, according to an announcement from U.S. Attorney for the Northern District of Texas Ryan Raybould.
Zechariah Yi, 52, from Aurora, Colorado, pleaded guilty on Tuesday to one count of receiving a bribe by a public official. He was indicted in March 2025 for accepting payments connected to USPS service contracts awarded to certain trucking companies.
Court documents show that while working as a Senior Network Operations Analyst at USPS, Yi solicited and received about $1.5 million in kickbacks from owners and associates of three trucking companies. In return, he agreed to help these companies secure USPS service contracts valued at approximately $15 million.
Yi could face up to fifteen years in federal prison. His sentencing is scheduled for March 26, 2026.
He is the fourth person to plead guilty in connection with this bribery scheme. Previously, another USPS employee named Tai Rho and two trucking company owners—Wan Jin Yoon and Hong Jin Yoon—each pleaded guilty to one count of conspiracy to commit honest services wire fraud. They each face up to five years in federal prison and are set for sentencing in early 2026.
The case was investigated by the FBI Dallas Field Office and the United States Postal Service – Office of the Inspector General. Assistant U.S. Attorneys Marty Basu and Joshua Detzky prosecuted the case.
