And then the magazine was empty and everything stopped as suddenly and dramatically as it had begun.

For a second he remained upright, holding on to the door for support, the energy almost visibly leaking out of him. Then he sort of half fell, half sat down, losing his grip on it in the process. He looked down at the blood on his shirt, and then at me, and I got a good look at his face, which I didn't want at all, because it was young, maybe late twenties, and his expression was all wrong. What I mean is, it wasn't the expression of a sinner. There was no defiance there; no rage. Just shock. Shock that his life was being stolen from him. He looked like a man who didn't think he deserved it, and that was the moment when I should have known I'd made a terrible mistake.

Instead, I turned away from his stare and reloaded. Then I stepped forward and shot him three times in the top of the head. The mobile phone he was carrying clattered noisily to the ground.

I dropped the gun into my jacket pocket and turned towards Danny, who was now bringing the car round.

Which was when I saw her, maybe fifteen yards away, standing in the light of the rear firedoor, a bag of rubbish in each hand. No more than eighteen and looking right at me, still too shocked to realize that what she was witnessing was real. What do you do? A movie pro would have taken her out with a single shot to the head, although there was no guarantee I'd even have hit her from where I was standing. And anyway, I'm not interested in hurting civilians.

Her hand went to her mouth as she saw I'd seen her, and I knew that any moment she was going to let out a scream that would probably wake the dead, which, with the dead only just being dead, I didn't want at all. So I lowered my gaze and hurried round to the passenger door, hoping that the gloom and wet had obscured my features enough to make any description she gave worthless.