The Rifleman
The Photographer
S1 E18:
An old friend of Lucas McCain's, a traveling photographer, comes to North Fork plying his trade. When a murder is committed, the photographer is accused of the crime. He is about to be convicted on circumstantial evidence, when Mark and his father concoct a clever ruse using photographs to unmask the real killer.
Starring
John Carradine, Sidney Blackmer, Raymond Bailey