New video that has been released by Republican Sen. Chuck Grassley of Iowa highlights the state of uncertainty that permeated the venue where former President Donald Trump was shot on July 13 after the would-be assassin was killed. Video posted to YouTube by Grassley’s office shows members of the Secret Service and Beaver County Emergency Services Unit on the roof where Thomas Matthew Crooks, from the elevated position, shot Trump. The video, which shows the shooter’s dead body and a trail of blood from the body, also shows authorities trying to make sense of what had just taken place. Grassle…