Ten years after one of the worst school shootings in U.S. history, residents of the Connecticut town where it took place marked Wednesday’s anniversary by attending vigils, paying respects at a new memorial and reflecting in private with loved ones. The rampage at Sandy Hook Elementary School on Dec. 14, 2012 – when a heavily armed gunman killed 20 young children and six educators – shocked the country and forever linked Newtown, a picturesque New England town, with the epidemic of mass shootings that has wracked the United States in recent years.