Forensic Expert

And ultimately tied a rope around her neck.

And ultimately tied a rope around her neck.

Loaded her in the car and drove her out to the Columbia Gorge. We found no forensic evidence to link Jesperson to this crime. None.

Loaded her in the car and drove her out to the Columbia Gorge. We found no forensic evidence to link Jesperson to this crime. None.

The detectives brought Keith Jesperson to the Columbia River Gorge.

The detectives brought Keith Jesperson to the Columbia River Gorge.

It was heavy brushes, like you see to my right. He said, this is where I threw the contents of her purse. Once we found the ID, we felt like we had solved the case.

It was heavy brushes, like you see to my right. He said, this is where I threw the contents of her purse. Once we found the ID, we felt like we had solved the case.

She knew details that only the killer would know. But if Laverne is not the killer, how did she know the exact area where Tanya Bennett was found?

She knew details that only the killer would know. But if Laverne is not the killer, how did she know the exact area where Tanya Bennett was found?

Tell me how you picked the spot where the victim's body was dumped.

Tell me how you picked the spot where the victim's body was dumped.

I washed the blood off the walls when I could and eventually painted the walls of the house I was in and tried to forget about it.

I washed the blood off the walls when I could and eventually painted the walls of the house I was in and tried to forget about it.

I think there may very well have been more victims had he not killed his girlfriend.

I think there may very well have been more victims had he not killed his girlfriend.

I had 40 good years and I had eight days of insanity and I'm being held responsible for the rest of my life on these eight days.

I had 40 good years and I had eight days of insanity and I'm being held responsible for the rest of my life on these eight days.

The greatest human tragedy is that Laverne Pavlinak derailed the investigation in 1990. And in four years, Keith Jesperson killed more women.

The greatest human tragedy is that Laverne Pavlinak derailed the investigation in 1990. And in four years, Keith Jesperson killed more women.