Granted this story could have ended badly, it's nice that a heartwarming tale was the final result. NPR reports on New Yorker Julio Diaz, a 31-year-old social worker, who often frequents his favorite Bronx diner on his commute home. When a teenage boy mugged him at knife point on the subway platform one of those nights, Diaz offered him his jacket and changed the course of things.As the teen began to walk away, Diaz told......