Donald Zepeda was a part of Declare Emergency, a climate action group, and had engaged in similar such protests over seven years, including two recent incidents at the National Gallery of Art.

U.S. District Judge Amy Berman Jackson told Donald Zepeda that his attack on the display of the priceless document did nothing to advance his cause.

On Friday, Jackson sentenced the other activist, Donald Zepeda, 35, of Maryland, to two years in prison with two years of supervised release.

U.S. District Judge Amy Berman Jackson told Donald Zepeda that his attack on the display of the priceless document did nothing to advance his cause.

U.S. District Judge Amy Berman Jackson told Donald Zepeda that his attack on the display of the priceless document did nothing to advance his cause.

U.S. District Judge Amy Berman Jackson told Donald Zepeda that his attack on the display of the priceless document did nothing to advance his cause.

U.S. District Judge Amy Berman Jackson told Donald Zepeda that his attack on the display of the priceless document did nothing to advance his cause.