Ben Vanek had gone through the standard opening lines. Fletcher spoke clearly in answer, looking directly at him, ignoring his brief, not glancing round or fiddling with his hands or shifting in his chair.

Holding himself together was right. It took a lot of concentration. And practice.

Simon itched to be doing the interview but Ben was measured, calm and relentless. They were the qualities that had won him fast promotion, but he also had a spark, a flare, which Serrailler had spotted early on.

'Do you wear trainers?' he asked Fletcher now.

'Sometimes.'

'When? Work? Every day?'

Fletcher shrugged. 'Sometimes.'

'You're not wearing them now.'

'No.'

'How many pairs do you own?'

'A couple.'

'And where are those trainers now?'

'What's that got to do with anything?'

'Just answer the question.'

'In the wardrobe, in the hall, I don't know.'

'What colour trainers are they?'

'White. White and blue. Maybe grey.'

'Which?'

'Don't remember offhand. White and blue. Yes. And there's a grey pair. Think I've still got them.'

Ben bent swiftly and brought the cellophane bag containing the trainers onto the table under Fletcher's nose.

'Are these your trainers?'

'Of course they're not.'

'Why of course?'

'They wouldn't be here in a plastic bag, would they? I said, they're in the wardrobe or somewhere at home.'

'So you don't own these trainers? Grubby but white with a blue flash. Look at them carefully please. Handle them, so long as you don't take them out of the bag.'

Fletcher took the trainers and turned them over and back. Dropped them on the table.

'Could be.'

'What size do you take? Don't bother lying because it's easily checked.'

'Ten.'

'These are a ten. Sure you don't recognise them?'

'I said . . . they're a bit like mine but most trainers are much the same.'

'Our officers searched your house this afternoon and found these in the bin, along with these.' He picked up a second plastic bag. 'Jeans. These are your jeans, aren't they?'

Fletcher stared at them but said nothing.

'Why did you dump a pair of perfectly good trainers and some jeans in the bins, Mr Fletcher?'

'The wife would have. I don't know.'

'Why would your wife do that? She might bin some very old clothes but these aren't old, are they? Look in good nick to me. So why did you bin them?'

'Just didn't want them.'

'So they are yours?'

'I didn't say that.'

'Come on, Harry, don't take the p.i.s.s. These are your trainers and jeans and you dumped them in your dustbin. Why?'

Fletcher moved about in his chair but did not reply and did not meet Ben Vanek's eye.

'If you don't know, I do. You dumped them because they smelled of petrol, the petrol you used to throw on n.o.bby Parks's shack before you set light to it. You spilled some and we all know how petrol reeks on your clothes. You could hardly walk home in your Y-fronts so you dumped them in the bin as soon as you got back. Isn't that the case?'

'I've got no idea what you're talking about. Never heard of this n.o.bby bloke.'

'Have you had a cold recently, Harry?'

Fletcher stared. 'No.'

'Do you sneeze a lot? Rhinitis, allergic to something, that sort of thing?'

'I don't know what you're talking about.'

'Simple enough question, I'd have thought. Just answer.'

'All right no. I don't.'

'Cough?'

'No.'

'What, you never cough?'

'Of course I b.l.o.o.d.y cough, everybody b.l.o.o.d.y coughs, what is this rubbish?'

'Have you had a cough recently? Or maybe you just breathed out a bit hard when you were shifting her body, is that it?'

'What body?'

'That of Olive Tredwell.'

'He's rattled,' Simon said. Fletcher had looked suddenly alarmed, had twitched and swivelled about in his chair, hearing the name.

Someone came in and handed Simon a slip of paper. He looked at it, showed it to Gerry.

'Ben,' Simon said softly into Vanek's earpiece, 'forensics just sent the result through. DNA on the mirror is a match for Fletcher. You don't need to string it out, we've got him. Bang it home now.'

'Either you sneezed or coughed or breathed out heavily when you were close to the mirror in Olive Tredwell's bedroom maybe when you were shifting her into the chair and strapping her to it? Maybe before? Maybe you don't remember, but it doesn't matter all that much whether you do or you don't, Harry.'

'So what are you banging on about it for? It's all b.o.l.l.o.c.ks anyway. You blokes make it up.'

'No. There's nothing made up about this bit of evidence, Harry. The DNA we obtained from a spray of saliva on Olive Tredwell's mirror matches the DNA on the swab we took from you today. You were there, you killed Olive Tredwell. You also set fire to the shack in which n.o.bby Parks was sleeping, probably because you thought he'd seen you he was a bit of a night.w.a.tchman was n.o.bby, he saw a lot of things. You couldn't risk him blabbing about you to us or the newspapers. He liked talking to the papers did n.o.bby and that panicked you, didn't it? You had to shut him up. Two people dead, Harry, and you killed them both.' Vanek leaned back and looked steadily and calmly at Fletcher. 'So what have you got to say?'

Whatever Serrailler was expecting probably denial, bl.u.s.ter, anger, accusations about police methods, all or any of that it was not what he got.

Fletcher stared at his hands for a moment, glanced at his solicitor, and away again, then said, 'Yes.'

'Yes what?'

'What the f.u.c.k do you think? I'm not an idiot. So yes. I killed her and I set fire to his place so I killed him as well. OK?'

Sixty-four.

'RESULT!' BEN VANEK stood in the corridor outside the interview room, his face one big grin.

'Good work, Ben. But I want him for the lot.'

Ben shook his head. 'He's calculated, this one. He knows we've got cast-iron evidence, no point in arguing, but he's worked out that we don't have it for the others. He reckons confession for these will do him some good. Which it won't of course.'

'Call me b.l.o.o.d.y-minded. I hear what you're saying, Ben, but there's one way we might get him. I've just got to check something with the search team, see if my hunch is right.'

Ben looked dubious.

'Trust me. Then I'll have you back in there. You're a good interviewer, you've got the knack. I bet you can bring this one off.'

The team who had taken apart Fletcher's house were about to go off duty.

'Great result, guys, thanks. Just before you go can you help me out? Anything strike you about the place things in it, anything unusual you noticed?'

They were silent for a few seconds, going back over it.

'Nicely furnished, very clean no, nothing unusual.'

'Keep thinking. Any books, photos, trophies anything?'

He knew what he wanted, prayed he'd get it.

'He's a Hammers supporter . . . got the scarf, got the sticker on the kitchen window.'

'Anything else?'

'So are his kids, found two Hammers shirts in their room.'

Warm.

It came.

'Those kids . . . two little lads . . . photos of them everywhere, on the walls, on the sideboard, on the window ledges. Way more than you'd expect. There were the usual school photos, but the rest, loads of them, were all taken of them with him, right from babies . . . in fact, there was only one with their mum out of the lot, so far as I remember . . . I've got one of me with mine on the kitchen shelf but that's it, just the one.'

'What I wanted to hear; thanks, guys. Now get off and have a pint, you've earned it.'

He found Ben Vanek. 'Listen up. You can use this.'

'Achilles heel,' Ben said when he'd heard. 'Always is one.'

'Give it a go?'

'Absolutely.'

'Get him back in. It's late, he's tense, he's been on his own for a bit, it's all crowding in on him. He knows the score. Push it.'

Ben nodded.

He's the one you've nurtured, Simon thought, the interviewer born as much as made, trained but with the extra intuition you can never buy with any amount of training. He was going to keep him, make sure he got all the practice but not exhaust him with small stuff, interviewing bottom-of-the-heap dealers in weed and petty shoplifters.

Simon went into the viewing room. Gerry was back, wanting to see this one through. There was the same tension there had been at the builders' yard, the same hope, fear, intense focus, finger-crossing, heightened sense that they could be there. Almost there.

Fletcher came into the room with the solicitor. Serrailler watched him closely. He was not c.o.c.ky but he had a confidence in the way he held himself, walked, sat, that sent out a message. I've given you something. I chose to give it. I go on choosing.

But he could only hope, he could not be certain, that they had no more evidence, nothing to spring on him about the other murders, not even a load of circ.u.mstantial. He had calculated the risk. He could be sure that his ident.i.ty was safe too, that Lafferton would not have been told about Alan Frederick Keyes, and that even if they had linked the MOs of the 'two' men, they couldn't so much as mention the Yorkshire murders. Off limits. Safe.