Statement on the Vehicular Attack at the North Barricade of the United States Capitol
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. We send our heartfelt condolences to Officer Evans' family, and everyone grieving his loss. We know what a difficult time this has been for the Capitol, everyone who works there, and those who protect it.
I have been receiving ongoing briefings from my Homeland Security Adviser and will be getting further updates as the investigation proceeds.
I want to express the Nation's gratitude to the Capitol Police, the National Guard immediate response force, and others who quickly responded to this attack. As we mourn the loss of yet another courageous Capitol Police officer, I have ordered that the White House flags be lowered to half-mast.
NOTE: The statement referred to Assistant to the President for Homeland Security Elizabeth Sherwood-Randall.
Joseph R. Biden, Statement on the Vehicular Attack at the North Barricade of the United States Capitol Online by Gerhard Peters and John T. Woolley, The American Presidency Project https://www.presidency.ucsb.edu/node/349356