A 16-year-old boy was arrested for brutally punching a 68-year-old woman, knocking her down the steps of a church in New York City, then stealing her purse before fleeing in her car, according to reports and the NYPD. The woman, identified as Irene Tahliambouris, who is still recovering from her injuries, was walking up the steps of St. Demetrios Greek Orthodox Church in Queens on Sunday when video shows the suspect sprinting up the stairs ahead of her. He then slugged Tahliambouris, sending her tumbling backward down the flight of outdoor, concrete stairs onto the sidewalk. The teen then rifl…