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Department of Justice

U.S. Attorney's Office
District of Wyoming
Nicholas Vassallo, United States Attorney
For Immediate Release
Wednesday, February 14, 2024

Activity in the U.S. Attorney's Office

Recent Sentencings

Firearm Offenses

Richard Wagner, 25, of Sheridan, Wyoming, was sentenced to 24 months in federal prison for being a felon in possession of a firearm. Chief U.S. District Court Judge Scott W. Skavdahl imposed the sentence on Feb. 14. According to court documents, on Mar. 13, 2023, the defendant was stopped for a traffic violation by the Wyoming Highway Patrol (WHP). As the WHP trooper approached the vehicle, he noticed that Wagner was trying to conceal something in the backseat. A search of the vehicle revealed a Glock pistol and 9.1 grams of cocaine. Having been previously convicted of a felony, Wagner is prohibited from possessing a firearm. The defendant pled guilty to the charge on Nov. 20, 2023. This crime was investigated by WHP and the Bureau of Alcohol, Tobacco, Firearms and Explosives. The case was prosecuted by Assistant U.S. Attorney Jonathan C. Coppom.

Domestic Violence

Xander Noah Miller, 20, of Broken Arrow, Oklahoma, was sentenced to two years of supervised probation for assault by striking, beating, or wounding. Senior U.S. District Court Nancy D. Freudenthal imposed the sentence on Feb. 12. According to court documents, the defendant and the victim were seasonal employees in Yellowstone National Park and lived in employee housing. Park Rangers were called to their residence for a domestic violence disturbance. The defendant admitted to fighting with the victim and pled guilty on Nov. 11, 2023. The crime was investigated by the National Park Service and prosecuted by Assistant U.S. Attorney Cameron J. Cook.

Illegal Re-entry of a Previously Deported Alien

Sergio Bucio-Cuellar, age 57, of Mexico City, Mexico, was sentenced to time served, plus up to 10 days to allow for deportation, for illegal re-entry into the United States of a previously deported alien. According to court documents, on Dec. 7, 2023, the defendant was arrested by the Cheyenne Police Department for aggravated assault and battery, bodily injury with a weapon, and strangulation of a household member. The defendant claimed to be a citizen of Mexico. U.S. Immigration and Customs Enforcement verified that Bucio-Cuellar had been previously deported and was in the United States illegally. The state charges were dismissed when federal charges were filed. This case was prosecuted by Assistant U.S. Attorney Cameron J. Cook. Senior U.S. District Court Judge Nancy D. Freudenthal imposed the sentence on Feb 14.

About the United States Attorney’s Office

The United States Attorney’s Office is responsible for representing the federal government in virtually all litigation involving the United States in the District of Wyoming, including all criminal prosecutions for violations of federal law, civil lawsuits brought by or against the government, and actions to collect judgments and restitution on behalf of victims and taxpayers. The Office is involved in several programs designed to make our communities safer. They include:

Environmental Justice
The fair treatment and meaningful involvement of all people regardless of race, color, national origin, or income with respect to the development, implementation, and enforcement of environmental laws, regulations, and policies.

Project Safe Childhood
Project Safe Childhood (PSC) is a DOJ initiative that combats the proliferation of technology-facilitated sexual exploitation crimes against children. The threat of sexual predators soliciting children for sexual contact is well-known and serious.

Project Safe Neighborhoods
Project Safe Neighborhoods (PSN) is a nationwide commitment to reducing gun and gang crime in America by networking existing local programs that target gun crime and providing these programs with additional tools necessary to be successful.

Victim Witness Assistance
The Victim Witness Coordinator for the United States Attorney’s Office for the District of Wyoming is dedicated to making sure that victims of federal crimes and their family members are treated with compassion, fairness, and respect.

To report a federal crime, go to:


Contact: Lori Hogan (Contractor)
Public Information Officer
Office: 307-772-2124 
Twitter: @usaowy

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