In a recent development, Russia has extended the prison sentence of Robert Gilman, a U.S. citizen, following a verdict from a regional court. The court found Gilman guilty of a new assault charge involving prison staff, further complicating his legal troubles.

This decision tacks on an additional two years to Gilman’s existing sentence, elevating his total incarceration period to 10 years. This update was reported by Reuters, indicating the growing legal challenges facing the former Marine.

The incident occurred in the Voronezh region, where Gilman is currently imprisoned. Prosecutors accused him of assaulting two guards, a charge that the court ruled as a separate offense, meriting further punishment.

As the situation unfolds, Robert Gilman, whose current sentence stands at a decade, continues to navigate the complexities of the Russian legal system, following the court’s decision to extend his time behind bars.

Robert Gilman now faces 10 years total after Voronezh court adds two more years for allegedly attacking guards. (REUTERS/Vladimir Lavrov)

The move follows a pattern of steadily increasing charges for Gilman since his initial arrest in 2022, highlighting how his prison time has lengthened over consecutive years.

Gilman, from Dracut, Massachusetts, was first arrested in January 2022 after passengers on a train reported he was drunk and causing a disturbance.

The former Marine’s Russian prison sentence keeps growing after a new assault conviction. (REUTERS/Vladimir Lavrov)

Transport police took him off the train in Voronezh, where he was detained for petty hooliganism. 

At the time, Russian media reported that Gilman, who had been traveling between Sochi and Moscow to replace a damaged passport, was heavily intoxicated.

He later claimed in court that he believed his drink had been spiked.

Gilman was convicted in 2022 of assaulting a police officer, initially receiving a sentence of three and a half years. 

At the time, prosecutors recommended four and a half years, of a possible five.

Gilman’s legal troubles escalated since his 2022 arrest for a train disturbance while he was traveling to replace his passport. (REUTERS/Vladimir Lavrov)

Fox News Digital also reported that Gilman bruised a Russian police officer with a kick while being dragged off of the train.

Gilman’s troubles in custody then increased in 2024 when he was found guilty of attacking a prison inspector during a cell check, assaulting an investigator and beating another guard.

Those convictions brought a sentence of eight years and one month, with Wednesday’s decision pushing the total to a decade.

The former U.S. Marine got two more years in a Russian prison for assault. (Vladimir Lavrov/REUTERS)

Local media, including the business newspaper Kommersant, reported that Gilman admitted to some of the assaults, per Reuters.

He said he began breaking prison rules after he was threatened with transfer from his current detention facility, which he described as humane and where he could receive packages from relatives, to a maximum-security penal colony. 

On Wednesday, Gilman apologized in court and explained he preferred to remain in the Voronezh facility.

According to Reuters, Gilman’s lawyer, Irina Brazhnikova, told the state-run TASS news agency that he would not appeal the newest verdict.

Gilman is among at least nine Americans still imprisoned in Russia following multiple high-profile prisoner exchanges in 2024 and 2025. 

Former prisoners released by Russia, journalist Evan Gershkovich, right, former U.S. Marine Paul Whelan, center, and U.S.-Russian journalist Alsu Kurmasheva, left, smile after landing at Joint Base San Antonio-Kelly Field, Texas, on August 2, 2024.  (Suzanne Cordeiro/AFP via Getty Images)

Several, like Gilman, have U.S. military backgrounds, including Michael Travis Leake and Gordon Black.

Supporters of Gilman in the United States argue he was ill when first detained and was provoked into actions that produced additional charges.