 Learning more about the shooter and the assassination attempt on former President Trump. Guy on the roof with a rifle. I'm Clayton Neville. President Biden is urging the nation to turn down its political temperature. Sagar Magani, Washington. Some last-minute changes to the Republican National Convention following the attempted assassination against former President Trump. I'm Jeff McKay. The Dow opens this morning at 40,000 after touching an all-time high in a rate-cut rally for stocks on Friday. I'm Jessica Edinger.