Justices are scheduled to hear arguments Tuesday in an appeal by a survivor and relatives of nine people killed in the shooting.
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They’re trying to sue Remington Arms, the North Carolina company that made the Bushmaster AR-15-style rifle used to kill 20 first-graders and six educators at Sandy Hook Elementary School. Gunman Adam Lanza’s mother legally purchased the rifle.
A lower court judge dismissed the lawsuit, saying federal law shields gun makers from most lawsuits over criminal use of their products.
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The company denies the lawsuit’s allegations that it violated state law by selling such a dangerous weapon to the public.