Connecticut School Shooting: Unanswered questions from the Sandy Hook tragedy (VIDEO)

Newtown, Conn., is now the grief-stricken home of the second deadliest school shooting in U.S. history. Twenty young children and six adults were gunned down at Sandy Hook Elementary School by 20-year-old Adam Lanza. We have the latest details on this still developing story in this edition of the CBS Evening News.

(CBS) NEWTOWN, Conn. - Twenty-seven people were killed in the tragedy that took place Friday at or near Sandy Hook Elementary School, including 20 children ages 6 - 7. CBS News correspondent Martha Teichner reports on the tragedy and the possible emotional and political reactions to it.

PICTURES: Conn. elementary school shooting

Details are starting to emerge about the "smart, but troubled" gunman, Adam Lanza but there are still many questions that remain unanswered.

Will this latest incident change any minds about gun control?

How do we stop tragedies like this from taking place? Can we stop it?

What will become of the terrified children who ran from the school and the families that have suffered such a terrible loss?

CBS News takes a look at these questions as the aftermath of the second worst school shooting in American history unfolds.

Complete coverage of the Sandy Hook Elementary School massacre