David Harmon was bludgeoned to death on 28 February 1982, whilst lying in bed next to his wife in Olathe, Kansas. The murder, which shocked this quiet, peaceful town, went unsolved for more than two decades.

Police had their suspicions in the case. They questioned the victim's wife and a friend of the couple. However, in the end, the investigation went nowhere.

But as Hannah Storm reports, a fresh look at old evidence and a knock on a door would change everything.

In its unique approach, 48 Hours delves into a single crime, examining it from multiple angles with its saturation coverage and action-driven style. The broadcast has received critical acclaim reflected in almost 20 Emmy awards, a George Foster Peabody Award, and an Ohio State Award.