New details reveal Thomas Matthew Crooks' parents reported him missing just before the shooting. Crooks, 20, had been seen suspiciously at the event hours earlier, carrying a rangefinder used by hunters. Despite being flagged by the Secret Service, he managed to access a nearby rooftop, where he fired shots at Trump and fatally wounded a retired fire chief. Investigators later found his car stocked with explosives, ammunition, and a bulletproof vest. The incident has sparked intense scrutiny of...