cop on cop shootingA black off-duty police officer was fatally shot by a white cop who mistook him for a criminal last night in East Harlem. The victim, Officer Omar Edwards, was wearing plainclothes and chasing down a robbery suspect when the unnamed white officer opened fire, killing him with two shots. “This is always a black cop’s fear, that he’d be mistaken for a [suspect],” a NYPD source said. |NYDN|