As police escorted the teen from the precinct to Central Booking, Hernandez’s mother and three female relatives repeatedly cried out, “Coward!” while the grieving mom clutched a framed photo of her son close to her chest. Rentas’ arraignment in Brooklyn Criminal Court was pending Tuesday night.

Noah Rentas, 18, the teen who fatally stabbed Michael Hernandez, 27, outside Brooklyn’s Barclays Center last week, was believed to be robbing the victim as part of a citywide gang of