Updated on: April 29, 2026 / 8:01 PM EDT / CBS News Add CBS News on Google The round that struck a U.S. Secret Service officer during Saturday's shooting outside the ballroom where the White House Correspondents' Dinner was taking place was not friendly fire, multiple senior law enforcement officials told CBS News Wednesday. Justice Department investigators, working with the Bureau of Alcohol, Tobacco, Firearms and Explosives, have at this point determined that the suspected gunman , 31-year-old Cole Allen, fired his shotgun, the officials said. A source familiar with the investigation previously told CBS News that a total of six shots were fired when the gunman charged a security checkpoint at the Washington Hilton — one by the suspect, and the other five rounds by the Secret Service officer who was struck in his bulletproof vest. Two sources familiar with the investigation said the shot that struck the agent likely hit the cellphone that was tucked inside a pocket of his bulletproof vest.…