Sachs nodded toward the door. “He’ll be here in a minute. He took off when we tried to get him but I don’t think he’s our boy. I checked him out. Married, been a broker with the same firm for five years, no warrants. I don’t even think he could carry it.” She nodded at the iron span.

There was a knock on the door.

Behind her, two uniformed officers brought in an unhappy-looking man in handcuffs. Ari Cobb was in his midthirties, good-looking in a dime-a-dozen businessman way. The slightly built man was wearing a nice coat, probably cashmere, though it was stained with what looked like street sludge, presumably from his arrest.

“What’s the story?” Sellitto asked him gruffly.

“As I told her”—a cool nod toward Sachs—“I was just walking to the subway on Cedar Street last night and I dropped some money. That’s it right there.” He nodded toward the bills and money clip. “This morning I realized what happened and came back to look for it. I saw the police there. I don’t know, I just didn’t want to get involved. I’m a broker. I have clients who’re real sensitive about publicity. It could hurt my business.” It was only then that the man seemed to realize that Rhyme was in a wheelchair. He blinked once, got over it, and resumed his indignant visage once more.

A search of his clothing found none of the fine-grained sand, blood or other trace to link him to the killings. Like Sachs, Rhyme doubted this was the Watchmaker, but given the gravity of the crimes he wasn’t going to be careless. “Print him,” Rhyme ordered.

Cooper did so and found that the friction ridges on the money clip were his. A check of DMV revealed that Cobb didn’t own a car, and a call to his credit card companies showed that he hadn’t rented one recently using his plastic.

“When did you drop the money?” Sellitto asked.

He explained that he’d left work about seven thirty the previous night. He’d had some drinks with friends, then left about nine and walked to the subway. He remembered pulling a subway pass out of his pocket when he was walking along Cedar, which was probably when he lost the clip. He continued on to the station and returned home, the Upper East Side, about 9:45. His wife was on a business trip so he went to a bar near his apartment for dinner by himself. He got home about eleven.

Sellitto made some calls to check out his story. The night guard at his office confirmed he’d left at seven thirty, a credit card receipt showed he was at a bar down on Water Street around nine, and the doorman in his building and a neighbor confirmed that he had returned to his apartment at the time that he said. It seemed impossible for him to have abducted two victims, killed one at the pier and then arranged the death of Theodore Adams in the alley, all between nine fifteen and eleven.