Arrests Continue In Wake Of Capitol Violence

At least 55 people are now facing federal charges, including the man photographed with his feet propped on the desk of House Speaker Nancy Pelosi. NBC's Jay Gray reports.

(NBC News) — The investigation into the riots Wednesday at the U.S. Capitol, and the round-up of suspects, are intensifying

Flags flew at half-staff Friday to honor Capitol Police Officer Brian Sicknick, who died as a result of injuries suffered during the violent siege of the capitol.

Days before the attack his department turned down offers of outside support from the Pentagon, Justice Department and Department of Homeland Security.

“We had so much internet traffic from a variety of groups that were going to engage in activities. We have the president himself going on the internet and saying ‘This is going to be wild’ and come. This should have been prepared for in a much more robust fashion,” says Senator Gary Peters.

The chief of the U.S. Capitol Police has announced his resignation, and the House and Senate’s Sergeants at Arms have already stepped down.

As police and federal agents step up their investigation and search for those responsible, one of the most familiar faces of the mob is now custody. Richard Barnett was pictured with his feet up on the desk of House Speaker Nancy Pelosi.

Dozens more have been arrested, with at least 55 facing federal charges including rioting, unlawful entry, assaulting police, theft and weapons violations.

One suspect was arrested with a semi-automatic rifle and 11 Molotov cocktails.

The FBI is searching for those responsible for leaving pipe bombs that were discovered near the Capitol. They also want to know if sensitive national security information may have been stolen from Congressional offices.

Read more here.