Erin Moriarty

We first brought you the story of Paige Bergfeld in 2008.

Shortly after the young Colorado mother of three disappeared, police discovered that she was leading a secret life, a life that may have led to her disappearance.

We've tracked her story ever since.

And tonight, at long last, the mystery of what happened to Paige Bergfeld may finally be solved.

No one loved a family gathering more than the one person missing from this one, 34-year-old Paige Bergfeld.

So when their daughter Paige vanished, Frank and Susie Bergfeld feared the worst.

Paige's older brother, Dr. Craig Bergfeld, is a long way from his home in Seattle.

By day, he specializes in the facial reconstruction of children.

And by night, he's dad to his own young family.

Is that the T-Rex board?

Yes.

And a devoted husband to his wife, Callie.

But now, living in his sister's home, Dr. Bergfeld has a new full-time job.

Uncle Craig to Paige's three young children.

Paige had a circle of close friends.

Her kids love her.

They glow when she's around.

And Paige was the type of parent that always was around, according to her friends.

As a single mother, she had to be.

Her ex-husband, Rob Dixon, was living in Philadelphia.