The first episode in which a murder is committed on-camera.
At 13:07 Sybil flags down a Skyline Taxi driven by a cabbie named Jerome Keddie. It is 1952 8 passenger DeSoto Firedome. This same taxi appear in several episodes.
If Raymond Burr seems unusually thin here, it may be because, as one of the first season episodes, it was filmed shortly after Burr had shed quite a lot of weight in order to secure the title role. As the series progressed, Burr would both gain and lose that weight repeatedly.
Robert Bice is credited as playing a character name Hurley but his actual character's name is Frank Faulker.