How one hero saved another after being shot by train gunman

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Mark Moogalian, a French-American musician, is one of five passengers being praised for his bravery on a crowded train threatened by a gunman as the first to wrestle a weapon away from the shooter. NBC’s Kelly Cobiella reports for TODAY on the other American heroes arriving in Germany and how US airman Spencer Stone kept Moogalian alive after he was shot.