Activity in the U.S. Attorney's Office

Public Lands Violations

Boston Heil, 25, of Jackson, Wyoming, was sentenced to 7 days of incarceration with credit for 2 days previously served.  The Defendant was also sentenced to pay a total of $980.00 in fines and court costs and placed on 2 years of unsupervised probation.  Mr. Heil pled guilty to speeding, operating a motor vehicle while under the influence of alcohol, and refusal of a motor vehicle operator to provide a breath test while in Grand Teton National Park. For refusing the official breath he also may not operate a motor vehicle for a period of 1 year on any federal lands pursuant to 18 USC 3118.  Assistant U.S. Attorney Ariel Calmes prosecuted the crime and U.S. Magistrate Judge Stephanie A. Hambrick imposed the sentence on February 5, 2025 in Mammoth.

Drug Trafficking

Heather Kathline Harker, 33, of Torrington, Wyoming, was sentenced to 21 months in federal prison with three years of supervised release to follow for the distribution of methamphetamine. According to court documents, in January and February of 2024, agents with the Wyoming Division of Criminal Investigation (DCI) conducted multiple controlled purchases from the defendant resulting in a total of 132.72 grams of methamphetamine. Harker entered federal custody on Sept. 13, 2024, she was indicted on Sept. 18, 2024, and pleaded guilty on Nov. 21, 2024. U.S. District Court Judge Kelly H. Rankin imposed the sentence on Feb. 5, in Casper. DCI and the Wyoming Highway Patrol investigated the crime. Assistant U.S. Attorney Z. Seth Griswold prosecuted the case. Case No. 24-00135

Firearm Offenses

Reginald Troy Perry, 52, with no permanent residency, was sentenced to 18 months in federal prison with three years of supervised release to follow for being a felon in possession of a firearm. According to court documents, on June 1, 2024, the Sweetwater County Sheriff’s Office conducted a traffic stop of a U-Haul truck traveling on I-80 East that was reported stolen. Upon further inspection, deputies found a High-Point .45 handgun. Perry is a previously convicted felon and is prohibited from possessing a firearm. He was indicted on July 18, 2024, and pleaded guilty on Nov. 15, 2024. U.S. District Court Judge Kelly H. Rankin imposed the sentence on Feb. 4, in Cheyenne. Homeland Security Investigations, U.S. Secret Service, and Sweetwater County Sheriff’s Office investigated the crime. Case No. 24-CR-00157

Drug Trafficking and Firearm Offenses

Jesse Alexander Mostaert, 33, of Casper, Wyoming was sentenced to 47 months and 8 days in federal prison with three years of supervised release to follow for being a felon and unlawful user of a controlled substance in possession of a firearm and ammunition. According to court documents, Mostaert has been the subject of several drug conspiracy cases in the Natrona County area and within the State of Wyoming. On Feb. 8, 2024, the Casper Police Department (CPD) encountered Mostaert. During the arrest, Mostaert tried to elude police officers while attempting to reach for a 9mm handgun in his waistband. He had methamphetamine, fentanyl, and steroids in his possession as well. He is a previously convicted felon and is prohibited from possessing a firearm. Mostaert was indicted on May 16, 2024, and pleaded guilty on Nov. 13, 2024. U.S. District Judge Kelly H. Rankin imposed the sentence on Feb. 3, in Cheyenne. DCI and CPD investigated the crime. First Assistant U.S. Attorney Stephanie Sprecher prosecuted the case. Case No. 24-00065

Illegal Re-Entry of a Previously Deported Alien

Edgar Cruz-Miguel, 29, of Quezaltepeque, Chiquimula, Guatemala, was sentenced to time served and will be deported for illegal reentry into the United States. According to court documents, on June 11, 2024, the defendant was arrested by the Teton County Sheriff’s Office and booked into the Teton County Detention Center for driving under the influence of alcohol, no driver’s license, open container, and not maintaining a single lane of traffic. The defendant claimed to be a citizen of Guatemala and agents with Immigration and Customs Enforcement (ICE) were contacted. They determined that Cruz-Miguel had previously been removed from the U.S. and had not applied for permission to reenter after being formally removed in February 2017.  ICE investigated the crime, and Assistant U.S. Attorney Cameron J. Cook prosecuted the case. Chief U.S. District Court Judge Scott W. Skavdahl imposed the sentence on Feb. 5, in Casper. Case No. 24-CR-00141

Fernando Coeto-Arellano, 28, of Palmar de Bravo, Puebla, Mexico, was sentenced to time served and will be deported for illegal reentry into the United States. According to court documents, on June 9, 2024, the defendant was arrested by the Teton County Sheriff’s Office and booked into the Teton County Detention Center for driving under the influence of alcohol. Agents with ICE were contacted and found his fingerprints and a passport that indicated he was from Mexico. They determined that Coeto-Arellano had previously been removed from the U.S. and had not applied for permission to reenter after being formally removed in September 2020.  ICE investigated the crime, and Assistant U.S. Attorney Cameron J. Cook prosecuted the case. Chief U.S. District Court Judge Scott W. Skavdahl imposed the sentence on Feb. 5, in Casper. Case No. 24-CR-00144

Luis Lopez-Romero, 38, of Guanajuato, Mexico, was sentenced to time served and will be deported for illegal reentry into the United States. According to court documents, on Oct. 2, 2022, the defendant was arrested by the Jackson Police Department and booked into the Teton County Detention Center for three charges of failure of duty to report upon colliding with an unattended vehicle or property. Agents with ICE were contacted and determined that Lopez-Romero was a citizen of Mexico. They also determined that Lopez-Romero had previously been removed from the U.S. and had not applied for permission to reenter after being formally removed in August 2013. ICE investigated the crime, and Assistant U.S. Attorney Cameron J. Cook prosecuted the case. U.S. District Court Judge Alan B. Johnson imposed the sentence on Feb. 7, in Cheyenne. Case No. 24-CR-00143

Juan Torres-Flores, 40, of Mexico City, Mexico, was sentenced to time served and will be deported for illegal reentry into the United States. According to court documents, on July 16, 2024, the defendant was arrested by the Jackson Police Department and booked into the Teton County Detention Center for driving under the influence of alcohol. The defendant claimed to be a citizen of Mexico and agents with Immigration and Customs Enforcement (ICE) were contacted. They determined that Torres-Flores had previously been removed from the U.S. and had not applied for permission to reenter after being formally removed in June 2010. ICE investigated the crime, and Assistant U.S. Attorney Cameron J. Cook prosecuted the case. Chief District Court Judge Kelly H. Rankin imposed the sentence on Feb. 7, in Cheyenne. Case No. 24-CR-00142

Jesus Cervantes-Garcia, 31, of San Simeon, Tlaxcala, Mexico, was sentenced to time served and will be deported for illegal reentry into the United States. According to court documents, on Aug. 2, 2024, the defendant was arrested by the Jackson Police Department and booked into the Teton County Detention Center for charges of contempt of court/probation violation on April 23, 2024. Agents with Immigration and Customs Enforcement (ICE) were contacted. They determined that Cervantes-Garcia had previously been removed from the U.S. and had not applied for permission to reenter after being formally removed in October 2019. ICE investigated the crime, and Assistant U.S. Attorney Cameron J. Cook prosecuted the case. U.S. District Court Judge Alan B. Johnson imposed the sentence on Feb. 7, in Cheyenne. Case No. 24-CR-00140

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:

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: https://www.justice.gov/actioncenter/report-crime