FILE - In this Jan. 3, 2013, file photo, a bus traveling from Newtown, Conn., to Monroe stops near 26 angel signs posted along the roadside in Monroe, Conn., on the first day of classes for Sandy Hook Elementary School students since the Dec. 14, 2012, shooting. The massacre in Newtown, in which a mentally troubled young man killed 26 children and teachers, served as a rallying cry for gun-control advocates across the nation. But in the three years since, many states have moved in the opposite direction, embracing the National Rifle Association’s axiom that more “good guys with guns” are needed to deter mass shootings. (AP Photo/Jessica Hill, File)