As we learn more about this tragedy, leading film and entertainment figures have been weighing in on the events.

After the sad news broke this afternoon, we've just learned that the 24-year old shooter also killed his own mother in the attack. It's a national tragedy, and will likely put a fire in the gun control debate once again.

Celebrities react to shootings

Michael Moore, who produced and directed the highly controversial 'Bowling for Columbine' said : "The way to honor these dead children is to demand strict gun control, free mental health care, and an end to violence as public policy."

Piers Morgan: "I can't bear this. It's just beyond comprehension that anyone would do this in an elementary school. Those poor children."

Anderson Cooper: "All our words seem so small, so meaningless in the face of such horror."

Leonard Nimoy: "Today it's Connecticut. Lots of people will not LLAP !!"

Snoop Dogg: "Sending love 2 the families in Connecticut for their tragic loss. 2day I bow my head in sadness"

Keri Hilson: "It's time to re-evaluate those gun laws you spoke about,‪@BarackObama‬. Prayers for surviving children & families in Newtown, Connecticut."

Randy Jackson: "Thoughts and prayers go out to those in Connecticut"

Jay Sean: "just heard about the tragic incident in Connecticut. it makes me ill to think there are such sick minded people that we have to live amongst"

Rihanna: "God have mercy!!!! No one deserves this! Praying for the families of the victims of the Connecticut shooting!! What a Christmas it will be"

Britney Spears: "My heart is with the children and families of Connecticut today…‪#PrayForNewton‬"

Shawn Johnson: "May all our thoughts and prayers be with the families and victims of the Connecticut shooting."