 Matthew Crooks was shot dead by Secret Service snipers. Former deputy director of the service, A.T. Smith, tells CBS' Face the Nation. There is no explanation whatsoever for how an individual was able to get on top of a building and be that close with a long rifle. President Biden spoke from the Oval Office last night. The power to change America should always rest in the hands of the people, not in the hands of a would-be assassin. CBS News special report. I'm Deborah Rodriguez.