(AP) — The Virginia elementary school where a 6-year-old boy shot his teacher reopened Monday with stepped-up security and a new administrator, as nervous parents and students expressed optimism about a return to the classroom. Melissa McBride, who brought her fourth-grade twins to school, said one of them wasn’t sleeping that well after the shooting, but the children felt better after attending an open house at the school last week. Superintendent George Parker, who was fired by the school board last week, has said that at least one school administrator received a tip that the boy may have brought a weapon to school, but no weapon was found when the boy’s backpack was searched