The son of a state court judge in Brooklyn has pleaded guilty in connection with the fatal Capitol riot.

The man in question, 35-year-old Aaron Mostofsky, pleaded guilty this week to a felony charge of civil disorder, as well as misdemeanor charges of theft of government property and entering and remaining in a restricted building. As detailed in court documents, Mostofsky was “dressed as a caveman and carrying a walking stick or rod” during the Jan. 6 riot spurred by Trump supporters aiming to overturn the former Apprentice host’s 2020 election loss. At one point during the riot, Mostofsky—who was also seen wearing a police vest and holding a police riot shield—spoke with a reporter.

Mostofsky was initially arrested in January of last year. As ABC News and others have since pointed out, he is indeed the son of Steven Mostofsky, a Brooklyn judge. Sentencing for Aaron Mostofsky is currently set for this May, with the 35-year-old facing as much as five years behind bars in connection with the felony civil disorder charge, in addition to a fine of $250,000. The misdemeanors each carry as much as a year in prison and an additional fine of up to $100,000.

As of this week, according to the Justice Department, more than 165 people have pleaded guilty to federal charges in connection with the fatal Capitol riot. Last month, Elmer Stewart Rhodes—founder of the far-right group Oath Keepers—was ordered to remain behind bars as he awaits trial over is own riot-related charges. Rhodes was arrested earlier in January and charged with seditious conspiracy, to which he later pleaded not guilty.