Gordon Carrera

And eventually he's brought in to be interrogated in a house in West Belfast.

Now he's held in a spare bedroom.

The person whose house it is could hear the kind of thumping and shouting from upstairs.

It's so interesting the kind of vivid memories people have of this because that person then recalls some of the people who are doing the interrogation upstairs coming down to watch a boxing match between Mike Tyson and Frank Bruno, which was I think happening maybe in Vegas that night.

And they get tea and toast and then go back upstairs for the interrogation.

I mean, kind of weird scene, isn't it?

I mean, it's details like that, which I think, I don't know, almost make it more chilling.

But Scappaticci tells his handlers that Fenton is going to be killed, but nothing is done in this case to prevent the killing, even though he has been an informer.

So he's taken out of the house and he's shot and his body is found soon after.

I'm not sure I can answer that.

I guess with Carlin, he had been an MI5 and a FRU agent and his political intelligence had probably got to people in a way that was more significant than the tactical kind of intelligence that someone like Fenton was supplying.

You wonder if that was the logic behind it.

And that maybe Fenton is not worth risking Scappaticci for by pulling him out, whereas Carlin is.

Scappaticci is directly involved in this interrogation and killing.

But the suspicions do, I think, start to grow about Scappaticci at this point.

There's a particular senior IRA figure called Brendan Hughes who's been in and out of jail at various points recently.

you know, very senior, and he's obsessed with the idea of penetration and thinks that they've got a high level penetration and that it might be scappatici.

So I think, you know, you can sense that that's a big part.

I mean, it's, you know, we've got the bonus episodes for members with Patrick Radden Keefe, who wrote this amazing book, Say Nothing, also a very good TV drama, which I think, you know, focuses actually on Brendan Hughes and about some of these characters and some of the sense of fear about informers that's going on.

And this is, in a way, the last of our cases.