As we have covered many times, the December 14, 2012 shooting at Sandy Hook was a tribute to the Dunblane Massacre, where in both instances first graders were targeted. As you likely know, 26 people were reportedly killed at Sandy Hook. With that in mind, notice it was 351 days after the U.K. shooting on March 13, 1996, that gun rights were taken away in the U.K., February 27, 1997, and 351 is the 26th triangular number.
Legal = 26

Keep in mind February 27 was the 58th day of the year.
Freemasonry = 58
Secret Society = 58
12/14/2012 = 12+14+20+12 = 58