Brandon Hole, the 19-year-old who the police say fatally shot eight people at a FedEx facility on Thursday night, legally purchased two semiautomatic rifles he used in the attack more than six months earlier, according to the chief of the Indianapolis Metropolitan Police Department. In March of 2020, the police had seized a shotgun from Mr. Hole after his mother raised concerns about his mental state, records show. But, Chief Randal Taylor said, the fact that Mr. Hole was legally able to make the more recent gun purchases indicates that, despite his mother’s warning and the police seizure of a...