Before you listen to this BBC podcast I'd like to introduce myself.

My name's Stevie Middleton and I'm a BBC commissioner for a load of sport

podcasts. I'm lucky to do that at the BBC because I get to work with

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So if you like this podcast, head over to BBC Sounds where you'll find plenty more.

Hello, you're listening to the Witness History podcast from the BBC World Service with me Matt Pintus

today finding the victims of Latin America's most ruthless dictator. More than 450 people were murdered

during the 35-year rule of Alfredo Strzner in Paraguay.

For tens of thousands more, their fate is still unknown. Forever remembered as

the disappeared, one man has dedicated his life to finding the remains of those who went

missing, including his own father.

We start our story in 1977 in the Argentinian city of Paranah, when 19-year-old university student,

Regilio Goyburu, is in the third year of a medical degree.

He idolizes his father and his main aim in life is to make him proud.

My father was waiting for me to come and work for him. I'd help him out in his surgery. We spoke about

it all the time. He truly was a best friend of mine. But Regilio's father isn't just a

doctor. He's Dr Agustin Goyburu, an exiled freedom fighter from Paraguay,

who's become one of dictator Alfredo Strzner's biggest adversaries and there's an order out for his removal.

...