Robert J. "Bob" Troester U.S. Attorney | U.S. Attorney for the Western District of Oklahoma
Two men from Oklahoma City will serve over 19 years in federal prison collectively for illegal firearms dealing and possession. Austin Gage Osborn, aged 24, received a 68-month sentence, while his co-defendant, Jose Adrian Hermosillo, aged 22, was sentenced to 168 months, following their arrests by undercover agents with the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF). The U.S. Attorney Robert J. Troester announced these sentences.
Beginning in July 2024, the ATF conducted operations where agents purchased approximately 20 firearms from Osborn and Hermosillo. It was revealed that Hermosillo, a convicted felon, was barred from possessing firearms. Despite being informed by undercover agents that purchased guns would be transported to Mexico, Osborn and Hermosillo continued to sell without a federal firearms license.
In November 2024, Osborn was charged with engaging in firearms dealing without a license and possessing firearms as a drug user. On December 5, 2024, he pleaded guilty, admitting to holding 19 firearms while using marijuana and dealing firearms illegally. U.S. District Judge Scott L. Palk sentenced him in March 2025 to over five years in federal prison with an additional three years of supervised release.
Hermosillo also pleaded guilty in November 2024 to firearms trafficking and admitted to knowingly providing firearms for potential felony use. His prior offenses include attempted burglary and firearm possession following juvenile adjudication in Oklahoma County.
Judge Palk cited the severity of the crimes and the need for deterrence as factors in the length of the sentences. The case involved the ATF and the Oklahoma City Police Department and was part of Project Safe Neighborhoods, an initiative aimed at reducing violent crime.
The prosecution was led by Assistant U.S. Attorneys Drew E. Davis and Mary E. Walters. Further information can be accessed through public records.
