The Home Trail(1918)

Tom Evans, the fearless range boss of the Double X Ranch, falls in love with a romantic schoolteacher from the East named Clara. They marry and for a time are happy, but in Tom's absence, his partner Blackie persuades the restless young wife to run away with him. Blackie soon deserts Clara, and she is forced to earn her keep at a disreputable dance hall. After robbing a stage, Blackie returns, and Tom, who has been waiting for his former friend, goes after him. In a gun battle with Tom and his posse, Blackie kills Clara and escapes, but Tom follows him into the desert and takes his horse, leaving him to die of thirst.