A Virginia man on Friday made his first court appearance on charges that he planted a pair of pipe bombs outside the headquarters of the Republican and Democratic national parties in Washington, D.C., on the eve of the U.S. Capitol protest.

U.S. Magistrate Moxila Upadhyaya ordered Brian Cole Jr. to remain in jail a day after his arrest on explosives charges. He is due back in court Dec. 15 for a detention hearing.

Cole did not enter a plea.

An FBI affidavit says investigators identified Cole as a suspect through analysis of credit card charges related to the purchase of pipe bomb components, cellphone towers, and a license plate reader.

Cole, 30, of Woodbridge, Virginia, confessed to the Jan. 5, 2021, act in interviews with investigators, two people familiar with the matter told The Associated Press.

Cole also indicated that he believed the 2020 election was stolen and expressed views supportive of President Donald Trump, said the people, who were not authorized to discuss by name an ongoing investigation and spoke on condition of anonymity.