On June 2nd, 1991, Denise Huber went to a Morrissey concert with her friend Tammy.

Denise was 23 and a just-managed college. went to a Morrissey concert with her friend Tammy.

Denise was 23 and had just finished college the year before.

Denise got into her car, waved goodbye,

and headed for the beach house that she shared with her parents.

She was almost home when she had to pull over.

Her car had a flat tire.

I would have gotten out of the car to look at the tire and then have done my best to change it.

I would have acted brave, though I would secretly be hoping a good citizen would pull over and help me.

I don't know what Denise did after she pulled over that night. No one does.

Because her friends and family never heard from her again. From A&E, this is cold case files. Denise's friend Tammy Shriven felt concern when Denise didn't come home or even call.

This is Tammy. Every time I would pass by a car, a blue-colored car or a Honda, I always looked to see if it was her car.

And so I was looking at everything on my way home that evening.

And then all of a sudden, I looked to the side of the road and her car was right there.

And I couldn't believe it.

Tammy found Denise's car and noticed a flat tire. She ran to look inside, hoping for some clue as to where her friend had gone. The car was empty though and her temporary relief turned to frustration.

Here's Tammy again.

I think I even screamed, oh my God Denise, where are you?

Come home to me.

Tammy called the police and Lieutenant Ron Smith was the one to respond.

This is Lieutenant Smith.

At that point we had absolutely no clues.

...