Dominic Pezzola, a New York Proud Boy who triggered the Jan. 6, 2021 breach of the Capitol when he smashed a window with a stolen police riot shield, has been sentenced to 10 years in prison for his role in the attack.

“You were the one who smashed that window and let people begin to stream into that Capitol building and threaten the lives of our lawmakers,” U.S. District Judge Tim Kelly said as he delivered his sentence on Friday. “It’s not something I would have ever dreamed I would have seen in our country.”

Pezzola’s sentence closes one of the most harrowing chapters of the Jan. 6 riot. The image of Pezzola smashing the window became emblematic of the threat to democracy that unfolded that day, and it was featured during the impeachment trial of Donald Trump that unfolded a month later.