The arrest of Brian Cole Jr, 30, of Woodbridge, Virginia, is the first breakthrough in the nearly five-year-old case, which spawned numerous conspiracy theories among the far right.

The pipe bombs were placed near the offices of the Democratic and Republican national committees on the night of Jan. 5, 2021, Reuters and the Associated Press reported.

The FBI arrested a suspect believed to have placed pipe bombs outside the GOP and Democratic Party headquarters prior to the Jan. 6, 2021, Capitol riot, MS NOW reported.