For most of his life, Reggie Reed has wrestled with the question of who murdered his mother decades ago. A fresh look at the evidence ultimately implicated Reed's father Reginald Reed Sr., the man who raised him after his mother's tragic death. 

This week on 48 HOURS, correspondent Peter Van Sant sits down for an exclusive interview with Melody Farris, a woman convicted of killing her husband on their Georgia farm. The only thing more shocking than the crime is who Farris says is the real killer… her son. However, Scott Farris denies any involvement in his father's death.