Britain's Most Evil Killers — S02E06 — The Railroad Killers: John Duffy & David Mulcahy

00:00:05 -In February 1988, 29-year-old carpenter John Duffy

00:02:31 The judge told him, "These were sadistic killings,

00:04:20 and the Irish community were still suffering

00:06:06 -So in their case, you started with the pranks

00:07:50 on a dark alley or something like that?"

00:09:51 took place in July 1984.

00:11:37 By December 1985, John Duffy and David Mulcahy

00:13:23 but Mulcahy wanted to do something more than that,

00:15:11 "We're in this together. We've both done this.

00:17:00 almost like he was the captain of a football team

00:18:42 boarded a train from Brookmans Park station in Hertfordshire,

00:20:32 -The first time that the police genuinely realized

00:22:33 I don't think I've ever come across a case like this.

00:24:33 He was number 1,595 on that list,

00:26:14 and unlike Mulcahy,

00:27:56 all of these things can be very different,

00:29:47 -John Duffy would go to trial alone,

00:31:41 "I'm going to stay true because I am, you know, a good friend,

00:33:46 had begun visiting a prison psychologist.

00:35:32 suddenly that case had come back to haunt him.

00:37:22 Paul Cheston was in the courtroom throughout.

00:39:14 of the duo's career of rape and murder.

00:41:05 -And David Mulcahy had nothing else,

00:42:57 known as the Railway Killers.