People gather at a memorial for victims near the school on the first Sunday following the mass shooting at Sandy Hook Elementary School on Dec. 16, 2012 in Newtown, Conn. - 

This final note today: some numbers from the Pew Research Center for the People and the Press about the shootings in Newtown.

Fifty-seven percent of Americans say they're following the story very closely. What's more interesting, though -- and gives an indicator of the policy debates to come -- is why people think the shootings happened.

Forty-four percent said shootings like these are the isolated acts of troubled individuals. Forty-seven percent said it's about broader problems in society.

Follow Kai Ryssdal at @kairyssdal