In Philadelphia, a woman's car was found abandoned on the side of a busy highway still running,

but the driver was missing.

At the scene, police found several clues, but was there enough forensic evidence to solve

the mystery?

Route 476 is one of several highways that links Philadelphia to the suburbs.

Hundreds of thousands of commuters travel that road every day.

On June 20, 1996, at two o'clock in the morning, an off-duty ambulance crew spotted an abandoned

car along an exit ramp before 76.

The engine was running, the lights were on, the radio was blaring, the driver's door was

open, but no one was inside.

There was a tire iron found in front of the car, I found some blood in front of the car,

I found a stone with blood on and find the car, and on the guardrail there appeared

to be some blood splatter next to the car.

We later had an interpretation done of the blood pattern in front of the car, and we

learned that it appeared as though someone had been laying on the ground for a brief

time in front of the car.

The crime scene says that this person was violently attacked in a very fast mode, meaning

that they were hit very quickly as far as the violence was concerned, and then they were

extricated from that side very quickly.

This person didn't stay around long.

After the car was a tire impression, which was photographed for analysis.

A forensic expert then made a cast of the impression, which was sent to the state crime

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