NRA Chief Executive Wayne LaPierre has told a news conference that lives could have been saved at Sandy Hook Elementary School if security at the school had been armed.
He also told reporters: "The only thing that can stop a bad guy with a gun, is a good guy with a gun."
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The mother of "bucket list" cancer patient Stephen Sutton has said signs of her son's illness were "ignored".
Boxing champion and occasional actor Mike Tyson has been praised for coming to the aid of a motorcyclist injured in a crash in Las Vegas.
A website is threatening the release of hacked nude pictures of Emma Watson, reportedly in response to her speech on gender equality.