 To Trump's left sat his young running mate, 39-year-old Ohio Senator J.D. Vance, who will address the delegates on Wednesday. Stephen Portnoy, ABC News, at the Republican Convention in Milwaukee. Questions continue for the Sequel Service and local law enforcement in Pennsylvania in the aftermath of this weekend's assassination attempt. CBS, that reporting suspect, was spotted by law enforcement in the lead-up to Saturday's shooting. And they say law enforcement and local sniper teams were inside that building while the suspect was on the roof overhead.