Transcript for Dozens arrested as manhunt for persons involved in Capitol siege ramps up
George, now to the nationwide manhunt for the rioters involved in last week's siege of the U.S. Capitol. New arrests and federal charges this morning as fallout from that insurrection continues to rattle the nation. Martha Raddatz. Reporter: Police say this man seen holding a white flex cuff at the capitol is Larry Brock, a texas-based air force academy graduate and combat veteran, arrested over the weekend. Along with Erin munchel of Tennessee who law enforcement officials say appears to be the man here carrying plastic restraints prompting questions about whether they intended to take hostages. A senior official telling ABC news that the rioters were organized, coordinated and had leadership and communications equipment and that many former military members were among them. And not just military, police departments across the country looking into whether their own members took part in this siege. Also arrested over the weekend, Richard Barnett, who sat himself in house speaker Nancy Pelosi's office chair, seen here turning himself in at an Arkansas sheriff's office Friday. And new details about this frightening moment caught on the Washington post reporting that the officer was holding back the mob, after noticing the door to the senate chamber above was open. The quick-thinking offerser then seen deliberately leading the mob the opposite way. And this new video, takesen as rioters breached the capitol. You're only hurting us. Reporter: Cops heard telling them, the military is on the way, one person responding, they're not going to shoot everybody. On the other side, an officer fires a shot killing Ashli Babbitt, a trump supporter and an air force veteran from California. The man who took this video, John Sullivan, said he was questioned and detained by the FBI but released. He says he's given them a copy of this video. All this as America is mourning the loss of officer Brian sicknick. Officials investigating reports that he was attacked with a fire extinguisher. His grieving family issuing a statement saying, quote, Brian is a hero and that is what we would like people to remember. President trump finally ordering flags at half-staff, as friends remember sicknick's kind face and a true professional. He was always kind to everyone. Reporter: Sicknick's death now being investigated as a homicide. Robin. Continue to think of his family. All right, Martha, thank you.
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