Federal prosecutors say a Virginia man has confessed to manufacturing and planting two pipe bombs near the headquarters of the Republican and Democrat national committees on the eve of Jan. 6, 2021, according to newly filed court documents.

The suspect, Brian J. Cole Jr., was arrested this month and is charged with transporting and attempting to use improvised explosive devices in downtown Washington, D.C.

"Following his December 4, 2025 arrest, the defendant waived his Miranda rights and gave a detailed confession to the charged offenses," the Sunday court filing read.

Prosecutors say surveillance footage, cellphone location data, and years of purchase records place Cole at both locations within minutes of one another Jan. 5, 2021.

The FBI later determined the devices were fully functional pipe bombs that failed to detonate and were not discovered until the following day.

Cole gave a detailed, videotaped confession, admitting he built the bombs, transported them in his car, and set 60-minute timers before placing them outside the two party headquarters.

Cole told investigators after his arrest he believed someone needed to "speak up" for people who believed the 2020 election was stolen and that he wanted to target the country's political parties because they were "in charge," prosecutors wrote in the Sunday filing.

The allegations were laid out in a Justice Department memo arguing Cole should remain locked up while the case moves forward.

The homemade bombs did not detonate and were discovered Jan. 6, the afternoon that protesters supporting President Donald Trump demonstrated at the U.S. Capitol to object to the certification of former President Joe Biden's election.

Cole denied his actions were connected to Congress or the events of Jan. 6, according to the filing.

But after initially disputing that he had any involvement in the pipe bombs, prosecutors say, he confessed to placing them outside the RNC and DNC and acknowledged feeling disillusioned by the 2020 election, fed up with both political parties and sympathetic to claims by Trump and some of his allies that the contest had been stolen.

According to the memo, he told agents who interviewed him that if people "feel that, you know, something as important as voting in the federal election is being tampered with, is being, you know, being — you know, relegated null and void, then, like, someone needs to speak up, right? Someone up top. You know, just to, just to at the very least calm things down."

He said "something just snapped" after "watching everything, just everything getting worse" and that he wanted to do something "to the parties" because "they were in charge," according to the Justice Department's memo.

Prosecutors say when Cole was asked why he had placed the explosives at the RNC and DNC, he responded, "I really don't like either party at this point."

Cole was arrested on the morning of Dec. 4 at his Woodbridge, Virginia, house in what law enforcement officials described as a major breakthrough in their nearly five-year-old investigation.

His lawyers will also have an opportunity to state their position on detention ahead of a hearing set for Tuesday in Washington's federal court.

During a search of Cole's home and car after his arrest, prosecutors say, investigators found shopping bags of bomb-making components. He at first denied having manufactured or placed the pipe bombs, prosecutors say, and when pressed about his whereabouts on the evening of Jan. 5, 2021, initially told investigators he had driven by himself to attend a protest related to the 2020 election.

"I didn't agree with what people were doing, like just telling half the country that they — that their — that they just need to ignore it. I didn't think that was a good idea, so I went to the protest," the memo quotes him as saying.

But over the course of hours of questioning, prosecutors say, Cole acknowledged he went to Washington not for a protest but rather to place the bombs.

He stowed the explosives in a shoebox in the back seat of his Nissan Sentra and placed one apiece outside the RNC and DNC headquarters, setting the timer on each for 60 minutes, the memo says.

Neither device exploded, a fact Cole says he was "pretty relieved" about because he planted them at night because he did not want to kill anyone, the memo says.

The fact that the devices did not detonate is due to luck, "not lack of effort," prosecutors said in arguing Cole poses a danger to the community and must remain detained pending trial.

"The defendant's choice of targets risked the lives not only of innocent pedestrians and office workers but also of law enforcement, first responders, and national political leaders who were inside of the respective party headquarters or drove by them on January 6, 2021, including the Vice President-elect and Speaker of the House," prosecutors wrote.

Newsmax writer Eric Mack and The Associated Press contributed to this report.