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What Makes a Killer

S2 Ep7: John Duffy and David Mulcahy, The Railway Killers

What Makes a Killer

Audioboom Studios

Documentary, True Crime, Society & Culture, History

4.41K Ratings

🗓️ 13 August 2020

⏱️ 48 minutes

🧾️ Download transcript

Summary

In February 1988, a 29-year-old John Duffy was on trial for the rape and murder of three women. He was a terrifying figure, and infamous across London. His arrest brought an end to a horrific four-year crime spree across the British capital, but he was only a half a murderous duo. Duffy refused to give up the name of his accomplice, and without any leads, the police have no choice but to wait. It would be another 15 years before the other man was found guilty for his part in the heinous crimes. Over a decade later, the imprisoned Duffy has had enough, and tells investigators he will testify against his former accomplice, and friend, David Mulcahy.

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Transcript

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0:00.0

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0:31.2

contains graphic details of sexual assault and violence and is not intended for all audiences?

0:38.0

Listener discretion is strongly advised.

0:43.5

In February 1988, a 29-year-old man is on trial for the rape and murder of three women.

0:51.4

He was a terrifying figure and was infamous across London.

0:56.0

As one victim later said they were like two bodies with one brain.

1:00.0

They knew exactly what the other one was going to do.

1:02.0

Their bond was unique and wicked.

1:04.8

His arrest brought an end to a horrific four-year crime spree across the British capital.

1:11.6

But he is only half of a murderous duo.

1:16.1

It would be another 15 years before the other man was found guilty for his part in the heinous

1:22.4

crimes. But for now only one is facing justice

1:28.2

and enduring the punishment. After receiving six life sentences, the man still refuses to give up his accomplice.

1:39.4

And without any leads, the police have no choice but to wait.

1:45.0

I think Mulcai is somebody who returns to a normal life and has absolutely no problem in doing that.

1:52.0

He doesn't feel bad about what he's done and it's very much

1:55.8

about self-preservation for him.

...

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