A stranger in town meets pretty young Susan Martinez De La Cruz and accompanies her to a barbecue , where wealthy Jason Carberry is saying a few words for the recently departed Robin Randall , a citizen who got shot .  Jason objects to the stranger's presence , being Susan's guardian and protective of her .  He challenges him to a shootout , but the stranger pulls his pistol before Jason's can even clear the holster .  Calaveras Kate , a saloon singer who's in love with Jason , is relieved when the stranger declines to pull the trigger .  Rafael Moreno suddenly rides into town and picks a fight with the stranger .  Their brawl continues until the arrival of Judge Wallace Wintrop and his niece , Sheila , who have come to town from back East and deplore all this random violence out West .  The stranger is recognized as Reb Randall , the dead man's brother .  He is looking for the killer , who could be Rafael , or could be Jason , or could even be Billy Buckett , the coward of the county .  The women hold their breath to see if the men they love will survive . 
When Jason challenges the stranger who is relieved at the end and for what reason?
Calaveras Kate was relieved because the stranger had his pistol out first and didn't pull the trigger