Barack Obama has tweeted on the White House's official Twitter account:
20 beautiful children & 6 remarkable adults. Together, we will carry on & make our country worthy of their memory. -bo #MomentForSandyHook
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The Prince and Princess will be treated to a petting zoo and a puppet show along with the children of local military families.
Andrew Patrick Saunders has been accused of murdering two people in Cardiff.
Senior lawyer Elizabeth Prochaska has left her position as junior counsel.