What we know about the suspect in shooting at White House Correspondents' Dinner

Cole Tomas Allen, the suspected gunman who tried to attack the White House Correspondents' Dinner Saturday night, left behind what officials are calling a written "manifesto" in which he clearly stated he wanted to target officials in the Trump administration, a senior U.S. official told CBS News. The president and first lady Melania Trump were safely evacuated from the dinner, and none of the attendees were seriously injured, authorities said. …