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It's a chilly Wednesday in December when Julie Mossbacher pulls up to the post office in Matisse,

Wyoming.

We don't get home mail delivery, so we all have to go to the post office.

Matizi, population 300, give or take, is an outpost on the Grable River in one of those

wind-wipped Wyoming counties that has more cows than people.

Just around the corner from the post office stands the Cowboy Bar, a saloon that served

renegades and ranchers for more than a hundred years.

Butch Cassidy once got arrested as he was leaving there

and sent to jail for horse theft.

Today, you can still find men on bar stools

with their cowboy hats pulled low,

perched next to tourists in sensible shoes

on their way to Yellowstone.

Julie Mossbecker has lived here for almost 15 years.

She's a nurse at a hospital in Cody about a half hour up the road.

On this chilly day, she's sifting through the usual stack of envelopes.

There's bills, bills, junk mail, another bill, a few Christmas cards.

And then something odd falls out.

A small, folded scrap of paper.

Julie opens it up to find a photo of a man staring back at her. He's middle-aged

...