UPDATE 2:30pm 8/19/2012:
US Capitol Police have just announced that they have apprehended 50-year-old Floyd Ray Roseberry from Grover, NC, a small town in Cleveland County on the NC/SC border, just south of Kings Mountain.
Police are still searching to vehicle to determine whether or not there is an explosive device on board.
ORIGINAL ARTICLE 12:15pm 8/19/2021:

This morning at about 10am, a Cleveland County man (about 45 minutes west of Charlotte) parked his pickup truck in front of the Library of Congress and started shouting that he had a bomb in the truck.
The US Capitol Police posted about the bomb threat on Twitter, saying, “the USCP is responding to a suspicious vehicle near the Library of Congress. Please stay away from this area and follow this account for the latest information.”
NOW: The USCP is responding to a suspicious vehicle near the Library of Congress.
Please stay away from this area and follow this account for the latest information. pic.twitter.com/LMBYBTJn4t
— U.S. Capitol Police (@CapitolPolice) August 19, 2021
About an hour later, they confirmed the threat, saying, “this is an active bomb threat investigation”.
MEDIA ALERT: This is an active bomb threat investigation. The staging area for journalists covering this situation is at Constitution and First Street, NW for your safety.
Please continue to avoid the area around the Library of Congress. pic.twitter.com/jTNVaBmVwR
— U.S. Capitol Police (@CapitolPolice) August 19, 2021
Here is a video of the suspect from Cleveland County, Floyd Ray Roseberry, who posted the following Facebook live video (it has since been taken down by Facebook and uploaded to Youtube). In the video, Roseberry can be heard saying, “People think this is a joke, but they cleared the block, I called 911 3 times, they need to get Joe Biden down here…I’m not hurting nobody Joe, I’m not pulling the trigger on this thing, I can’t, there’s no way for me to blow this up…only you can by shooting a bullet through my window…you don’t want to do it Joe…” and added, “We got a few options here Joe, you shoot me, there’s 2 1/2 blocks going with it, then you talk about a revolution, the revolution is on, it’s here, it’s today, I told my wife I’d be home by Sunday…”
At 12:07am this afternoon, the Chief of the US Capitol Police gave the following update on the situation:
We will update this article as new information comes in.