The following podcast contains accounts of child sexual assault.

Listener discretion is advised.

So I'm doing time for something I haven't done, because as you were probably aware,

I was convicted of the murder, kidnapped the murder of Michael Black.

And I still don't know how I got convicted for something I haven't done.

I don't even understand what happened there.

At the time of that police interview,

former South Australian teacher Dieter Fenig was serving time for the abduction and murder of one child, 10-year-old Michael Black,

and for the abduction and rape of another. Police interviewing him suspected he was responsible

for the disappearance and murder of a third child, 10-year-old Louise Bell. He was eventually

convicted of that crime too, but not before an innocent man was accused and convicted.

Michael Madigan has written an excellent book about the case called Father, Teacher, Child Killer,

which takes us into the crimes and the investigations. It also asks if there are links to other

notorious and unsolved crimes against children.

This is Australian True Crime.

We acknowledge the traditional owners of the land on which this podcast is created,

the Wurundri, Woi Wurang people of the Kulin Nation.

Sometimes South Australian stories are a little bit forgotten, but look, there's a whole heap

of stories that if you really look into it, they are almost, well, I put at the end of the

book that you can almost say that Dieter might have been involved with every one of them.

I mean, how many serial killers of children are there in South Australia?

And we are talking about a sort of cluster of missing and murdered children in Australia,

...