 in the grandstand area. Piven said it will take some time before they can conclusively answer whether the gunman acted alone. Dave Mistich, NPR News. Former President Trump says it was God alone who prevented the unthinkable. As NPR's Franco Ordonez reports, Trump confirms he'll speak at the Republican National Convention this week. In a new social media post on his Truth Social website, former President Donald Trump called for Americans to stand together.