WASHINGTON (AP) — The FBI made an arrest on Thursday in its nearly 5-year-old investigation into who placed pipe bombs in Washington on the eve of the January 6, 2021, riot at the U.S. Capitol, a law enforcement official told The Associated Press.

The arrest represents the first significant breakthrough for investigators who had long been baffled over this incident, which has spawned numerous conspiracy theories and left many questions unanswered. Although details about the suspect have not been released, authorities confirmed it is a male.

The pipe bombs were discovered on the evening of January 5, 2021, in the vicinity of the Democratic National Committee and Republican National Committee offices. Fortunately, the devices were disposed of without causing any injuries, but the FBI has stated that both devices were capable of being lethal.

In the years since the incident, authorities have been working diligently to identify the individual caught on surveillance footage while grappling with questions surrounding the individual’s identity and intent. The FBI had released a physical description of the suspect, noting a height of approximately 5-foot-7, while also sharing surveillance footage to gain public assistance.

As the investigation unfolded, conflicting narratives emerged, highlighting the political implications tied to the events of January 6. Republican lawmakers and certain media outlets propagated various theories regarding the bombs, with some suggesting a potential cover-up regarding the incident, leading to criticism of the FBI's operational capacity during crucial moments.

Upon his tenure with the FBI, new leadership pledged to prioritize the investigation, enhancing the focus and resources allocated to resolving the case. Improved investigative strategies and increased public engagement were undertaken to solicit leads on the matter.

As more details emerge surrounding this latest arrest, communities are left awaiting answers regarding the broader implications tied to this pivotal event in American history.