Erin Moriarty

Their family had grown to include a whopping 22 grandchildren and seven great-grandchildren.

Claudia was 76 and Chip, 87.

Every evening, Claudia looked forward to being home with Chip.

It didn't matter what she was doing or who she was with.

That's exactly how they were, together, on a beautiful night in April.

Home from a long day of activities, Claudia and Chip left their window open as they drifted off to sleep in the cool of the evening.

Hours later, a figure appeared outside their window.

I'm 48 Hours correspondent Erin Moriarty.

I've been reporting on murder cases for over three decades.

So you probably think that after all this time, I've seen it all.

And actually, I thought I had too, until I encountered two senseless, inexplicable murders.

Just the torture of the bodies.

You know, putting inanimate objects in their body.

and the mastermind behind them.

This is 15, Inside the Daniel Marsh Murders.

Episode one, A Quiet Life Shattered.

Before we begin, just a trigger warning.

The following episode contains references to graphic physical violence.

Please listen with care.

This is Chip's daughter, Mary Northup.