Unsub 11-5, wearing nothing more protective than Department of Environmental Protection coveralls, had been standing right in front of the hole he was drilling. When he’d broken through the main, the stream of water, like a buzz saw, had cut straight through his chest, killing him instantly. As he’d dropped to the floor, the water had continued to slice through his neck and head, cutting them apart.

Blood and bone and tissue were everywhere, some blasted onto the far wall, many feet away. Sachs had known she should get the hell out and let the bio team secure the scene but she’d been compelled, out of curiosity, to perform one last task: to tug the unsub’s left sleeve up. She had to see his body art.

The red centipede stared out at her with probing, human eyes. It was brilliantly done. And utterly creepy. She’d actually shivered.

‘What’s the status of the scene?’

‘Army’s sealing it – about a two-block radius. I got prints and DNA from our unsub and pocket litter and bags he had with him before I got kicked out.’

‘Well, bring back what you have. He’s not working on his own. And who knows what else they have in mind?’

‘I’m on my way.’

CHAPTER 66

The TV news was frantic but ambiguous.

A terrorist attack on the water supply in New York, improvised explosive devices …

Harriet and Matthew Stanton sat on the couch in the suite at their hotel. Their son, Joshua, was beside them in a chair, fiddling. One of those bracelets the kids wore nowadays, even boys. Colored rubber. Not normal. Gay. Matthew tried to frown his son to stillness but Joshua kept his eyes on the TV. He sipped water from a bottle; the family had brought gallons with them. For obvious reasons. He asked questions that his parents didn’t have the answers to.

‘But how could they know? Why isn’t Billy calling? Where’s the, you know, poison?’

‘Shut up.’

The simple-minded commentators on the media (the liberal cabal and the conservative in this case) were offering nonsense: ‘There are several types of bombs and some are calculated to do more damage than others.’ ‘A terrorist could have access to a number of types of explosives.’ ‘The psychology of a bomber is complicated; basically, they have a need to destroy.’ ‘As we know from the recent hurricane, water in the subways can cause serious problems.’

But that was all they could say because apparently the city wasn’t releasing any real information.

More troubling, Matthew was thinking, was what Josh was stewing over. Why hadn’t they heard from Billy? The last word from him: After they’d reported that the city had shut down the valves, he was going to start drilling. The botulinum was ready to go. He’d have the toxin in the water supply within a half hour.