NYC kin of ‘perfect child’ slain in unsolved case of apparent mistaken identity have message for killer

Christian Josiah Montrose, 19 — described by cops as a “good kid” who didn’t even drink alcohol while trying to survive in a gang-infested neighborhood — had just parked his car in front of his family’s house on East 104th Street near Avenue K in Canarsie around 2:45 a.m. March 19, 2024, when he was…