On December 4, 2025, the Federal Bureau of Investigation (FBI) arrested Brian J. Cole Jr., a 30-year-old resident of Woodbridge, Virginia, for allegedly planting two pipe bombs outside the Republican National Committee (RNC) and Democratic National Committee (DNC) headquarters in Washington, D.C., on January 5, 2021. This arrest marks a significant development in a lengthy investigation that has faced numerous challenges and has been the subject of various conspiracy theories.

The bombs, which were discovered approximately 15 hours after being placed, did not detonate but were deemed capable of causing significant harm. Their placement coincided with the lead-up to the Capitol riot, where supporters of then-President Donald Trump attempted to disrupt the certification of the 2020 election results. Notably, Vice President-elect Kamala Harris was reportedly within a short distance of one of the devices upon her arrival at the DNC headquarters the following morning.

The investigation, which has been described as one of the largest in FBI history, involved extensive efforts, including the review of tens of thousands of video files, conducting around 1,000 interviews, and analyzing credit card transaction data. The FBI had previously offered a reward of $500,000 for information leading to the identification of the suspect. Cole was identified through a combination of surveillance footage, financial records indicating purchases of materials used to construct the bombs, and cellphone data.

Despite the arrest, questions remain regarding Cole's motive and any potential connections to the events of January 6. He has no prior criminal record and was not registered to vote, with acquaintances describing him as quiet and well-behaved. The investigation faced criticism for its prolonged duration, with some lawmakers expressing frustration over the lack of timely resolution.

The FBI's case against Cole is based on previously collected evidence rather than new findings, raising concerns about the efficiency of the investigative process. The arrest is expected to address some of the conspiracy theories surrounding the January 6 events, particularly those suggesting internal involvement or cover-ups. The FBI has refuted such claims, emphasizing the independent nature of their investigation.