New footage shows how Trump dinner gunman charged through security in four seconds

New CCTV footage shows Cole Tomas Allen, 31, charging through a security checkpoint during the Washington press dinner attended by President Donald Trump. Allen has pleaded not guilty to attempting to assassinate Trump. Prosecutors state he checked into the hotel a day before the attack and ran about 60 feet before being tackled by security agents. One officer was hit by a bullet fired by Allen but was not injured by the officer's return fire.