A one-time leader in the Proud Boys far-right extremist group was sentenced Friday to 18 years in prison for his role in the Jan. 6 riot at the U.S. Capitol, tying the record for the longest sentence in the attack.

Ethan Nordean was one of five members convicted of spearheading an attack on the U.S. Capitol to try to prevent the peaceful transfer of power from Donald Trump to Joe Biden after the 2020 presidential election.

“He is the undisputed leader on the ground on Jan 6,” said prosecutor Jason McCullough.