Illegal Alien from Guatemala Sentenced to More Than Eight Years in Federal Prison for Being an Illegal Alien in Possession of a Firearm

LITTLE ROCK-Silvino Herrera-Munoz, who is in the United States illegally, will spend the next 102 months in federal prison after being convicted of being an illegal alien in possession of a firearm. Jonathan D. Ross, United States Attorney for the Eastern District of Arkansas, announced the sentence, which was handed down today by United States District Judge Lee P. Rudofsky.

On March 4, 2025, Herrera-Munoz, 34, who resided in North Little Rock, was indicted by a federal grand jury in an Indictment charging him with being an illegal alien in possession of a firearm. On January 12, 2026, Herrera-Munoz pleaded guilty to the Indictment. Judge Rudofsky also sentenced Herrera-Munoz to three years' supervised release. There is no parole in the federal system.

An investigation revealed that on February 2, 2025, a concerned citizen called 911 and reported a vehicle driving eastbound on Interstate 30 near Geyer Springs, Arkansas, with the driver shooting 5-7 times out of the driver's window. The driver/shooter, later identified as Herrera-Munoz, was going back and forth speeding up and slowing down and brake checking the tractor trailer before he began to shoot. The caller followed Herrera-Munoz's vehicle until an Arkansas State Police Trooper conducted a stop. Herrera-Munoz, an illegal alien, had an odor of alcohol and a blood-alcohol content of .12, well above the legal limit in Arkansas.

After the Trooper approached the vehicle, he observed a Smith and Wesson .40 caliber firearm and a spent shell casing on the driver's floorboard. During a search of the nearby area of the traffic stop, Troopers located two additional shell casings on Interstate 30, which were later confirmed to be fired from the firearm Troopers located on the floorboard of Herrera-Munoz's vehicle.

Herrera-Munoz's criminal history includes two convictions for driving while intoxicated.

This case is part of Operation Take Back America, 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.

The investigation was conducted by the U.S. Immigration and Customs Enforcement with assistance from the Arkansas State Police and Bureau of Alcohol, Tobacco, Firearms and Explosives. The case was prosecuted by Assistant United States Attorney Jordan Crews.

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United States Attorney for the Eastern District of Arkansas, is available online at

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