Federal agents have arrested the son of a Brooklyn judge on charges that he was among the protesters who stormed the U.S. Capitol.

The  FBI said Aaron Mostofsky, 34, was picked up at his brother’s home in Brooklyn on Tuesday morning, about a week after he was seen inside the Capitol wearing a fur costume and a police vest.

He was to make a remote court appearance later in the day to face charges, including theft of government property.

Mostofsky's brother said last week that his brother “did nothing illegal.”

The Eastern District of New York says that Mostofsky faces a maximum of 10 years in prison if convicted of the top charge, theft of government property.

He is 34 years old.

(Written by Associated Press writer Tom Hays.)