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Hello and welcome to assignment on the BBC World Service.

I'm Simon Cox and what you're about to hear

is a grim tale from Iceland.

Now this is the place where we were supposed to have taken

the body of Gatefinner and dug a hole

and put it in it and set it on fire.

So you will have driven up in the car to here

and then taken the body into this lava field?

Well, at that time you could drive all the way in here.

So we were supposed to have driven the car

somehow between these hills and parked behind here.

The root holler,

are where people come to ride horses

or to stare at the northern lights.

But I've come to the Red Hills

to visit a 40-year-old crime scene.

And my guide is one of Iceland's most notorious criminals,

Erler Botler Dossier.

You could easily drive a car in here.

...