Sandy Hook Promise

Molly Riley / AP

Wednesday marks four years since the shooting at Sandy Hook Elementary School that killed 20 children and six educators. Mark Barden is the father of 6-year-old Daniel Barden, who died in the shooting. After the shooting, Mark co-founded the advocacy group Sandy Hook Promise.

In Newtown, making promises to transform a tragedy

Dec 14, 2013
AP Photo/Seth Perlman

In the year since the shootings at Sandy Hook Elementary School in Newtown, some in that community have been working to turn that tragedy into a moment of transition. The group Sandy Hook Promise is both a support group for families and an advocate for ending gun violence.