Dozens of New Yorkers gathered Friday at a vigil to mark the 30 years since 16-year-old student Ari Halberstam was tragically slaughtered on the Brooklyn Bridge — all because he was Jewish. Mayor Eric Adams, New York Attorney General Letitia James and a slew of NYPD and FBI officials were among those who joined the slain teenager’s loved ones at the site of the 1994 antisemitic terror attack. “On that day, at that moment, my life was forever changed. We became victims of terrorism,” his inconsolable mom, Devorah Halberstam, told the roughly 100-strong crowd of mourners and dignitaries. 3 Mayor...