 At around 3 o'clock, Crooks was spotted at the rally's security screening area, tried to pass through metal detectors with a range finder, which is, of course, used by hunters again to measure distance. The device, which looks like a small pair of binoculars, would not have prevented him from getting into the rally, but did put him in the law enforcement's radar. The Secret Service watched but lost track of Crooks when he left the secure area. He is believed that he collected the rifle he used to shoot Trump.