Some time after midnight in July of 1986, Stephanie Brown took some friends home who lived

in an unfamiliar part of town.

Make sure you go I-5 North.

Don't go south, you get lost.

To get back to her apartment, Brown was told to take Interstate 5 North, a major thoroughfare

in California.

It's a more I-5 North?

Okay, thanks.

Despite the directions, Stephanie Brown made the wrong turn.

It took both science and psychology to discover what happened next.

A fisherman walking down this trail in a remote mountain area outside of Sacramento,

California, discovered the semi-new body of a young woman lying face down in a flooded

irrigation ditch.

Around her neck, a band of purple discoloration, the sign of ligature strangulation.

It was a very isolated desolate area next to a cornfield.

And there were no houses or lights or civilization anywhere around.

It was a very lonely spot to have been driven to.

And certainly she was conscious during the drive.

We don't know how long he toyed with her.

We don't know how long he assaulted her, how long it was before she was killed.

The autopsy found traces of semen, but the samples were too badly degraded for DNA testing.

The victim was identified as 19-year-old Stephanie Brown, who worked as a teller in a Sacramento

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