In the 48 hours before attempting to assassinate former President Donald Trump, 20-year-old Thomas Matthew Crooks made a chilling series of stops around Pittsburgh, including a shooting range, Home Depot for a ladder, and a gun store for ammunition. He attended Trump’s rally with a car rigged with explosives and used a ladder to gain a vantage point to open fire. Despite exhaustive investigations into his phone, computer, and personal life, authorities remain baffled by his motives, finding no ...