NRA executive vice president Wayne LaPierre has told a news conference that "now is the time to speak about protecting American children.
Speaking for the first time since the Sandy Hook school shootings, he told reporters federal gun prosecutions have decreased and the media promotes violence through video games, adding that the media also demonises lawful gun owners.
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The judge said the 14-year-old had been subject to a great injustice. He was executed for the murder of two little girls in 1944.