New York City police have arrested a 13-year-old male juvenile in the shocking stabbing death of a Barnard College student, sources told Fox 5 News Friday. Tessa Majors, an 18-year-old freshman, was discovered unconscious with “multiple stab wounds about the body” near a staircase in Manhattan’s Morningside Park just before 7 p.m. Wednesday, police said earlier this week. The president of the all-women school says she “was fatally injured during an armed robbery” attempt. A police source told Fox 5 News Friday that the teen confessed to stabbing Majors. The report, citing police, adds that as many as three people...