So many unknowns. Caliber of round? Hole in the wall? Nearby garages are  few and across either a good three hundred yards of field, or Airport Way with a frontage rd., or on the wrong side of the library for the incident to be possible. All I know for sure is Fairbanks Noel Wein Library is an Alaska treasure. It is the gold standard for a reasonably set up library for the people. It is a stone bummer that the nice employees and patrons including moms with children were put at risk that way. I hear way too many people advocate carrying a round in the chamber. This is exactly how many incidents happen.