The heroic bystander, Michael Black, who risked his own life to try to subdue the transgender gunman in Rhode Island on Monday, recounted the harrowing incident on Tuesday. He described how, after he tackled the shooter, his hand became caught in the gunman's slide, stopping him from causing further harm, and how he witnessed the shooter pull out a second gun and take his own life. "As I was watching the game, I heard a pop, pop. And I thought they were balloons, I thought they were big balloons. And the noise was right in front of me. I looked,...