Adam Christian Johnson, 37, of Parrish, Fla., was sentenced by U.S. District Senior Judge Reggie B. Walton on one count of entering or remaining in a restricted building or grounds, a Class A federal misdemeanor. As part of a plea agreement, two other charges were dismissed.

The stay-at-home father of five children will be allowed to serve the jail sentence at a facility nearest to his home so his children can visit, Judge Walton ruled. With credit for time served, Johnson faces another 60 days in jail. He was free on personal recognizance at the time of sentencing.

"I do consider this to be a very serious offense," the judge said at the Washington D.C. federal courthouse. "It's one of the darkest days, I think unfortunately, that this country has ever suffered. … It's a slippery slope from what happened on that day to what may happen the next time around. I just hope it's not the case, but the precedent has been set."

Suggested Bust of Washington as a Battering Ram

Johnson attended President Donald J. Trump's speech at the Ellipse on Jan. 6. Prosecutors allege that Johnson ran to the Capitol when he heard rioters had breached police lines.