The FBI is investigating how Thomas Matthew Crooks, just 20 years old, managed to shoot at former President Donald Trump during a rally in Pennsylvania. Questions are being raised about how Crooks got onto a nearby building with a clear view of Trump, less than 150 meters away, despite security measures in place. The 3D recreated scene using videos and images, shows two sniper teams positioned on nearby rooftops. While it appears the view of the first sniper team may have been obstructed by tre...