Brandon Scott Hole, 19, was identified as the alleged shooter of the FedEx warehouse in Indianapolis. The alleged gunman's family warned authorities about his potential for violence before the mass shooting, according to CNN. The shooter pulled the weapon out of his trunk and allegedly started shooting for up to two minutes during a FedEx night shift change, witnesses claimed. Employee Jeremiah Miller told WISH that he watched the mass shooting unfold inside the warehouse, saying: "I saw a man with a submachine gun of some sort, an automatic rifle, and he was firing in the open. "I immediately ducked...