December 17, 1950 Episode 23. Based on events of March 28, 1947. A cowboy is killed with a shotgun. The clues are a shotgun shell and a cast of a horse shoe. Joel McCrea stars as Ranger Jace Pearson who investigates. Gerald Mohr (Photo) appears in this episode. Gerald Mohr (June 11, 1914 – November 9, 1968) was an American radio, film, and television character actor and frequent leading man, who appeared in more than 500 radio plays, 73 films, and over 100 television shows. He starred as Raymond Chandler's hardboiled detective, Philip Marlowe, 1948–1951, in 119 half-hour radio plays.