"Jill and I were heartbroken to learn of the violent attack at a security checkpoint on the U.S. Capitol grounds, which killed Officer William Evans of the U.S. Capitol Police, and left a fellow officer fighting for his life", Biden wrote in a statement.
Federal and Law enforcement sources told CNN that the suspect in the attack was 25-year-old Noah Green from Indiana.
According to Metropolitan Police, just after 1:00 pm EST, a man, later identified as a 25-year-old from in named Noah Green, rammed his blue sedan into two Capitol Police officers and then hit the north barricade barrier.
Washington Metropolitan Police Chief Robert Contee told the news agency that the incident did not seem to be terrorism-related, but investigation into it would continue.
"I know people say this all the time, but the guy who I played with is not the same person who did this", said Toran, a reporter at the Courier-Journal in Louisville, Kentucky, part of the USA TODAY Network.
Capitol Police and National Guard troops were called upon soon afterward to secure the Capitol during Biden's inauguration and faced another potential threat in early March linked to conspiracy theories falsely claiming Trump would retake the presidency. Officers opened fire and killed him.
U.S. Capitol on lockdown after security incident
The officer who died Friday is the seventh Capitol Police member to die in the line of duty in the department's history. Afterwards, police say the suspect exited the vehicle with a knife in hand and appeared to lunge towards the officers.
United States media said officials had identified the attacker as Noah Green, a 25-year-old Black man from IN and an adherent of the Black nationalist Nation of Islam movement.
Green further made Facebook posts about the "end times" and the anti-Christ, according to The New York Times.
Green's Facebook page, reviewed by The Post before it was taken down, wrote about Nation of Islam leader Louis Farrakhan and losing his job after graduating college.
"They were very weird". "But, when I remembered the posts and connected the dots, it kind of adds up now". The brothers kept in contact and at one point, Noah told Brendan that "his mind was telling him to basically commit suicide" and said he'd jumped in front of a auto, Brendan told The Post.
The Post was unable to review those stories before Green's account was removed. The brothers kept in contact and at one point, Noah told Brendan that "his mind was telling him to basically commit suicide" and said he'd jumped in front of a auto, Brendan told The Post. Several weeks ago, Brendan allowed Noah to come live with him after Noah said he was "in a really bad situation".
Investigators were digging into his background and examining whether he had any history of mental health problems as they tried to discern a motive.