Shadow Prey by John Sandford
A slumlord butchered in Minneapolis...A rising political star executed in Manhattan...A judge slashed to death in Oklahoma City...
Each victim has a history of bad behavior, but the only thing the killings have in common is the murder weapon--a Native American ceremonial knife--and a trail of blood that leads to an embodiment of evil known only as Shadow Love. Recruited to be the lethal hand of a terrorist campaign, Shadow Love has his own bloody agenda, one he will do anything to achieve.
Enlisted to find him are Minneapolis police lieutenant Lucas Davenport and New York City police officer Lily Rothenburg. But despite the countrywide carnage they needn't look far. Because Shadow Love is right behind them.