Cops are investigating a second gang attack in the Bronx — which is eerily similar to the mistaken-identity slaying of 15-year-old Lesandro “Junior” Guzman-Feliz. The attack left a 14-year-old boy in critical condition with multiple stab wounds, according to police. It happened on Bronx River Parkway, just two days before Guzman-Feliz was dragged out of...