 New images and details in the investigation into the attempted assassination of Donald Trump. This as a timeline is revealed of the suspected shooter's movements, including that authorities were aware of him on the rooftop 20 minutes before he fired shots. Secret Service Director Kim Cheadle has agreed to testify Monday on Capitol Hill as she faces more calls to resign. Sources say a search of the shooter's phone revealed that he looked up the dates of Trump's rally as well as dates for the Democratic National Convention in Chicago.