Final appearance of Officer Kogan. However, the Kogan character would continue to be referenced throughout the rest of the series, often calling from or being called downstairs.
David Doyle guest starred in this episode, mentions that there is a guy named " Charlie" in his gun club, he would later star in Charlie's Angels (1976)
The events surrounding Yemena's shooting seem to have been inspired by the Kitty Genovese murder, which occurred on March 13, 1964. At the time this episode was filmed, the widespread public understanding was that while Genovese was being murdered, many witnesses who resided in her apartment complex saw the event transpire and chose not to act either by intervening directly or alerting the authorities. This led to decades of the case being considered emblematic of bystander apathy and group inhumanity; however, this perception was derived almost totally from one largely inaccurate account of the murder that in the twenty-first century has been heavily debunked.