 popular gun-related YouTube channel on it. CBS's Norm Donnell with more. CBS News has learned one local police officer even encountered the gunman, but was forced back when the shooter pointed his weapon at him. An hour from now, President Biden will address the nation from the Oval Office. Here's CBS's Natalie Brand. From the White House, President Biden says he spoke with Trump last night and also extends condolences to the family of the father who was killed. Were you happy with the results for your family?