"Willow," a black and white female pit bull mix loved by her owners, didn't seem destined to become a key figure in a murder investigation. But that's exactly what happened. It was Aug. 12, 2023, when the dog became known to law enforcement in New Haven, Indiana.

That morning, police would hear about Willow, and how she was a protective guard dog. But they wouldn't meet her. And that's one of many places where this story gets fascinating as correspondent Peter Van Sant reports in "A Death in the Stairwell," an all-new "48 Hours" airing Saturday, Oct. 11 at 10/9c on CBS and streaming on Paramount+.

Alison Davis and Willow

Willow belonged to Kevin and Alison Davis, a married couple. Steve Krause, Alison Davis' father, tells Van Sant how much Kevin and Alison loved each other, calling ea

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