The nation was already stunned by two mass shootings this summer: First, 12 were killed and 58 were injured in the movie theater shooting in Aurora, Colorado. Sixteen days later, six were killed and four injured when a gunman opened fire on a Sikh temple in Oak Creek, Wisconsin before shooting himself in the head. But the latest shooting occurred in New York City just outside the Empire State Building. And, for decades, people have listened to police scanners just to be the first to know – now they’re sharing what they hear on Twitter. One adam twelve, come in... today at one o’clock.