Analysis: How investigators connected the dots to DC pipe bomb suspect; and why his behavior raises new concerns

For years, the question of who planted pipe bombs outside the Republican

and Democratic National Committee headquarters on the night of Jan.

5, 2021, one day before the rioters stormed the Capitol, was one of Washington’s most persistent mysteries.

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Surveillance images captured a figure moving calmly through Capitol Hill, placing devices that forced evacuations and diverted police resources as the Capitol attack unfolded the next day. But the suspect’s identity remained unknown.

A newly unsealed affidavit now describes how investiga