Michael J. Cohen, one of the most prominent figures in New York’s gay nightlife scene, has long reigned as a gatekeeper for young queer men looking to attend exclusive parties and clubs. He now faces a range of sexual misconduct allegations — including accusations that he groped or pressured men to have sex or send nude photos, as well as a claim of sexual assault — from members of that same community, according to nine people who told NBC News about their experiences over the past decade. In 2015, Charles Battersby, then 19, was elated when Cohen offered to introduce...