Lawman (1958)

S3E28 Mark of Cain

After three years in exile, Chad Kennedy returns to Laramie, having been acquitted of his brother's murder. He visits his ailing father, but tragedy strikes when they both watch him collapse and pass away. This time, however, Chad's sister-in-law is determined to ensure he faces justice, whether he's truly guilty or not, and she plans to see him hang.