Continuity mistake: Early in the episode, the killer approaches the victim as she sits on a bench at the bus stop. He is facing her and shoots her in the chest and then turns and moves to his left, but he is then shown approaching her from the other side (her left).
Factual error: The armed robbery is reported by the radio call as happening in "4014 Nostrand Avenue", which is a real street in Brooklyn. However, the first detectives to respond to the dispatch identify themselves as being from "Manhattan South" (makes sense, Kojak being a Lieutenant of the fictional 11th Manhattan South precinct), and the rest of the episode is set obviously in Manhattan. That's many miles away.
Kojak: Who loves ya, baby?