The FBI arrested a suspect who investigators believe planted pipe bombs near the Republican and Democratic parties' headquarters in Washington, D.C., the night before the 2021 Capitol riot, multiple outlets reported Thursday.

Why it matters: The nearly 5-year investigation was a high-profile, unsolved case. • The FBI did not immediately respond to Axios' request for comment. The White House referred Axios to the Justice Department, which also did not immediately respond to a comment request.

Catch up quick: The bombs did not detonate. Existing footage of the suspect showed a person wearing a face mask, glasses, a gray hooded sweatshirt and gloves, using a backpack to transport the bombs. • A Republican-led congressional panel in January criticized the FBI's previous failure to identi

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