Celebrities are also reacting to the shooting in Connecticut. Here are just a few of the many comments we've seen on Twitter:

Singer and actor Kristin Chenoweth tweeted "Our hearts are broken for you, Newtown."

Country group Steel Magnolia tweeted "Our deepest sympathy and prayers to the families and those lost in Connecticut."

Country group the Band Perry says "Our hearts are broken for the families in Connecticut. Please join us in prayer for these families."

Country singer Lee Brice tweeted "Love those around you and never take a single day for granted! Such a terrible tragedy today, keep all of those affected in your prayers."
Celebrities React to Shooting in Connecticut