WASHINGTON (AP) — A Capitol Police officer was killed Friday after a man rammed a car into two officers at a barricade outside the U.S. Capitol and then emerged wielding a knife, marking the second line-of-duty death this year for a department still recovering from the Jan. 6 insurrection. Video shows the driver of the crashed car emerging with a knife in his hand and starting to run at the pair of officers, Capitol Police Acting Chief Yogananda Pittman told reporters.