Federal agents on Thursday announced the arrest of a suspect charged with planting the two pipe bombs discovered near the US Capitol complex on the eve of January 6, 2021. Authorities identified the man as Brian J. Cole Jr., a resident of Woodbridge, Virginia. The arrest marks a major break in a case that has vexed authorities for nearly five years.

Cole, 30, is charged with transporting an explosive device across state lines with the intent to kill, injure, intimidate, or destroy property and with attempting to damage and destroy the headquarters of the Republican and Democratic national committees by means of an explosive device. If convicted, he would face the prospect of decades in prison.

According to an affidavit, investigators linked Cole to the bombs through a combination of surveillance footage, historical cell-site data, and years of purchase records showing he bought each major component used to construct the devices. Agents allege Cole acquired the same model of galvanized pipe, matching end caps, and nine-volt connectors, among other items, across multiple hardware stores in northern Virginia in 2019 and 2020.

Cole continued buying components used in bomb-making after his bombs in the Capitol were discovered, agents allege, listing the purchase of a white kitchen timer and two nine-volt batteries from a Walmart on January 21, as well as galvanized pipes from Home Depot the following day.

Senior Trump administration officials quickly cast the arrest as a vindication of their own leadership, claiming the case had gone cold. Attorney General Pam Bondi said she hoped the arrest would restore public trust following what she characterized as a “total lack of movement” on a case that had “languished for four years.” In their telling, the breakthrough was proof that the case only advanced once they were empowered to “go get the bad guys” and stop “focusing on other extraneous things,” as FBI deputy director Dan Bongino put it.

“Though it had been nearly five years, our team continued to churn through massive amounts of data and tips that we used to identify this suspect,” said Darren Cox, deputy assistant director of the FBI’s criminal investigative division.

The bombs were planted near the headquarters of the Republican and Democratic national committees the night of January 5, 2021, as Congress prepared to certify Joe Biden’s electoral victory over Donald Trump. Both failed to detonate, but their discovery the following day added to the chaos and confusion unfolding as a pro-Trump mob stormed the US Capitol building, causing millions of dollars in damage and injuring approximately 140 Capitol and Metropolitan Police Department officers.