Activity in the U.S. Attorney's Office

Sex Offenses

Grant Allen Fletcher, 47 of Arapahoe, Wyoming, was sentenced to three years’ probation for failing to register as a sex offender. According to court documents, Fletcher was previously sentenced to four years’ probation in November 2002 for aggravated sexual abuse. He is therefore a Tier III sex offender who must register for life under the Sex Offender Registration and Notification Act (SORNA). Additionally, he must update his registration every 90 days, in-person. Fletcher last appeared and updated his registration with Wind River SORNA on September 3, 2024. He was required to update his registration, in-person, by Dec. 2 to remain compliant with his registration requirements. He failed to do so. Fletcher was indicted on March 20 and pleaded guilty on Oct. 2. The U.S. Marshal Service investigated this crime. Assistant U.S. Attorney Timothy W. Gist prosecuted the case. U.S. District Court Judge Alan B. Johnson imposed the sentence on Dec. 19 in Cheyenne. Case No. 25-CR-00051

Firearm Offenses

Michael Brockmeier, 41, of Casper, Wyoming, was sentenced to 24 months’ imprisonment with three years of supervised release to follow for being a felon in possession of a firearm. According to court documents, on May 3, the Casper Police Department (CPD) responded to a house for a report of a man firing several shots into the air during a family fight. Witnesses indicated the defendant had fired multiple rounds, including several that he shot into the air while his significant other attempted to leave the house with two children. The defendant is a convicted felon, prohibiting him from possessing a firearm. The Bureau of Alcohol, Firearms, Tobacco and Explosives and CPD investigated the crime. Assistant U.S. Attorney Paige Hammer prosecuted the case. Brockmeier was indicted on July 16 and pleaded guilty on Sept. 9. U.S. District Court Judge Scott W. Skavdahl imposed the sentence on Dec. 16 in Casper. Case No. 25-CR-00114

Drug Trafficking

Gerald Edward White, 60, of Medicine Bow, Wyoming, was sentenced to 51 months’ imprisonment with three years of supervised release to follow for possession with intent to distribute methamphetamine. According to court documents, on Feb. 3, law enforcement conducted a traffic stop of the defendant and seized approximately 1.5 pounds of methamphetamine from his vehicle. The Wyoming Division of Criminal Investigation and the Albany County Sheriff’s Office investigated the crime. Assistant U.S. Attorneys Margaret Vierbuchen and Z. Seth Griswold prosecuted the case. White was indicted on March 20 and pleaded guilty on July 18. Chief U.S. District Court Judge Kelly H. Rankin imposed the sentence on Dec. 19 in Cheyenne. Case No. 25-CR-00057

Illegal Re-Entry of a Previously Deported Alien

Rigoberto Martinez-Ramos, 30, of Chihuahua, Mexico, was sentenced to time served—plus up to ten (10) days to allow for deportation proceedings—for illegal reentry into the U.S. after previously being deported. According to court documents, on Sept. 28, the defendant was encountered by the Casper Police Department (CPD) for a disturbance call. Due to a language barrier, CPD called the Immigration and Customs Enforcement (ICE) office for assistance. Officials obtained the defendant’s fingerprints and determined that he had not applied for permission to reenter the U.S. after being formally removed in February 2015. ICE investigated the crime, and Assistant U.S. Attorney Cameron J. Cook prosecuted the case. U.S. District Court Judge Scott W. Skavdahl imposed the sentence on Dec. 17 in Casper. Case No. 25-CR-00152

Juan Chilel-Lopez, 34, of San Marcos, Guatemala, was sentenced to time served—plus up to ten (10) days to allow for deportation proceedings—for illegal reentry into the U.S. after previously being deported. According to court documents, on Oct. 5, the defendant was stopped by the Cheyenne Police Department (CPD) for a traffic stop. The defendant admitted to being a citizen of Guatemala who had previously been deported. ICE officials obtained the defendant’s fingerprints and determined that he had not applied for permission to reenter the U.S. after being formally removed in 2012. 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 Dec. 19 in Cheyenne. Case No. 25-CR-00155

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.

Operation Take Back America
Operation Take Back America is a nationwide initiative that marshals the full resources of the Department of Justice to repel the invasion of illegal immigration, achieve the total elimination of cartels and transnational criminal organizations (TCOs), and protect our communities from the perpetrators of violent crime. It also streamlines efforts and resources from the Department’s Organized Crime Drug Enforcement Task Forces (OCDETFs) and Project Safe Neighborhood (PSN).

Victim Witness Program
The Victim Witness Coordinator for the United States Attorney’s Office for the District of Wyoming is dedicated to ensuring 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