A harrowing chapter in American history remains shrouded in mystery: Who planted pipe bombs outside offices of the Democratic and Republican national committees in Washington on the eve of the attack on the Capitol?
Hoping to generate new tips from the public, the FBI is releasing more information about its pipe bomb investigation, including an estimate that the unidentified suspect is about 5 feet 7 inches tall. The bureau also is posting previously unreleased video of the suspect placing one of the bombs.
