Terminal city : a novel
(Book)

"When the body of a young woman is found in the tower suite of the Waldorf Astoria, one of the most prestigious hotels in Manhattan, Assistant DA Alex Cooper and Detectives Mike Chapman and Mercer Wallace find themselves hunting for an elusive killer whose only signature is carving a carefully drawn symbol into his victims' bodies, a symbol that bears a striking resemblance to train tracks. When a second body bearing the same bloody symbol is discovered in a deserted alleyway right next to the Grand Central terminal building, all attention shifts to the iconic transportation hub, where the potential for a bigger attack weighs heavily on everyone's minds"--from publisher's description.