Watch: New footage of shooter Cole Allen casing hotel before White House dinner attack released

 Federal prosecutors released surveillance video showing Cole Tomas Allen attempting to storm the White House Correspondents’ Dinner, armed with guns and knives, to assassinate Donald Trump. The footage depicts Allen breaching a Secret Service checkpoint at the Washington Hilton Hotel. He exchanged gunfire with agents, injuring one officer, before being apprehended. Federal prosecutors released surveillance video showing Cole Tomas Allen attempting to storm the White House Correspondents’ Dinner, armed with guns and knives, to assassinate Donald Trump. The footage depicts Allen breaching a Secret Service checkpoint at the Washington Hilton Hotel. He exchanged gunfire with agents, injuring one officer, before being apprehended.