In Minnesota, police officials say they believe Monday’s school shootings at the Red Lake Native American Reservation were carried out by a single student acting alone. Police say 17-year-old Jeff Weise first shot dead his grandfather — who was a police officer — and his grandfather’s girlfriend. He then took his grandfather’s squad car and guns to the local school where he shot dead seven people. On Tuesday FBI Agent Michael Tabman described what happened inside the school. Police say Weise had once posted messages on a neo-Nazi website where he professed his admiration for Hitler.