An 18-year-old college student was stabbed to death on Wednesday afternoon in a New York City park, allegedly by a group of unidentified young men who mugged her then left her for dead. Tessa Majors, a freshman at Barnard College who was from Charlottesville, Virginia, was walking down a flight of steps into Morningside Park on West 116th Street on Wednesday when the young men approached her. According to police sources, they demanded money from her and stabbed her multiple times in the stomach before fleeing. She crawled to a nearby security guard booth but the guard was doing his...