"Dozens of bystanders" reportedly were recording video while a 15-year-old boy was mercilessly beaten and then fatally shot at a New York City playground last week.Former Mayor Eric Adams posted video on X showing Thursday's deadly altercation, and the New York Daily News reported that the clip shows "dozens of bystanders ... recording" while the beatdown took place.'They treated it all as entertainment. He was already beat up. He was helpless, …