Federal authorities have finally arrested a suspect in the January 6 pipe bombs case, potentially shedding light on a mystery that has lingered since 2021, ABC News' Katherine Faulders reported.

The suspect is reportedly a man from Virginia, identified after FBI agents combed through footage and evidence in an extensive review.

The explosive devices were placed at the headquarters of the Democratic and Republican National Committees on the same day that an angry mob of MAGA activists stormed the Capitol to try to stop the certification of President Donald Trump's election loss that year. The bombs were viable, according to authorities, but did not explode.

Then-Vice President-elect Kamala Harris passed within 20 feet of one of the explosive devices at one point.

Aside from publicly released footage of an unknown figure in a gray hoodie, the mystery of who planted the devices has lingered for several years.

This comes just weeks after congressional investigators revealed new details about the incident previously undisclosed to the public, including that the suspect visited the headquarters of the Congressional Black Caucus the same day.