The Mysterious Traveler.  Episode 28, Murder in Jazztime.  We travel to good old New Orleans to listen to Jazz music and witness what appears to be, a murder.  (April 20, 1948)

Inner Sanctum Mysteries.  Episode 57, The Man Who Couldn’t Die.  A man wants a potion that will give him eternal life.  But first he must kill to get it.  (February 12, 1946)