The No. 2 official in New Hampshire on Donald Trump's presidential campaign told police to kill themselves in an expletive-ridden Jan. 6 video shot close to the U.S. Capitol, according to a recording posted this month by an X account associated with the "Sedition Hunters," a group of online sleuths who have helped authorities identify hundreds of people present that day.

"If you are a police officer and are going to abide by unconstitutional bulls---, I want you to do me a favor right now and go hang yourself, because you’re a piece of s---," Dylan Quattrucci, the deputy state director of Trump's campaign in New Hampshire, says in the video. "Go f--- yourself."

Four officers who responded to the riot on Jan. 6, 2021, later died by suicide. The Justice Department determined this month that one of the officers, Jeffrey Smith, died in the line of duty as part of a process that awards survivor benefits to his widow.

Two people who are familiar with Quattrucci confirmed to NBC News that the man in the video is him. The video shows him wearing the same outfit he was wearing in tweets he posted that day that were first surfaced by WMUR-TV of Manchester.

While the Capitol is in the background behind him, there is no evidence that he entered the building.

U.S. Capitol Police Officer Harry Dunn, who testified in October at the Oath Keepers seditious conspiracy trial, praised his former colleagues on Thursday night and called Quattrucci "a failure."

“I hope Dylan Quattrucci will take the time to comprehend that 4 members of Capitol Police and Metropolitan Police Dept did die via suicide and that the efforts to stop the certification of duly elected President Biden failed in part because of their brave heroics,” U.S. Dunn told NBC News in a text message. “You are a failure. Those men will be remembered for service to their country. And you’ll be remembered as the guy in the cheap suit during the failed insurrection.”