 Investigators say spectators noticed 20-year-old Thomas Crooks at the rally acting strangely outside the event before he made it to a nearby roof. He is believed to have acted alone. After that assassination attempt Saturday, Homeland Security Secretary Alejandro Mayorkas says official government protection is coming for another presidential candidate who was previously denied it. In light of this weekend's events, the president has directed me to work with the Secret Service to provide protection to Robert Mayorkas.