There was a segment on "60 Minutes" last night about Sandy Hook Promise.  The piece featured Nicole Hockley and Mark Barden, who each lost a son on 12-14.  They co-founded Sandy Hook Promise, and the televised segment showed the lasting impact and recovery from the gun violence that happened more than 4 years ago.  The pair also showcased a program they created called "Know the Signs", which teaches kids and adults how to be upstanders instead of bystanders.