Shadow of Doubt — J.L. Wilson

FBI agent Nathan Stokes and his girlfriend, Margaret Dalton, find themselves in Possum Bottom, Minnesota during a brutal cold snap to talk to her lawyer about an inheritance- a lawyer whom they find dead, frozen to the pavement outside his office. When another murder occurs, this time on reservation property, it becomes a matter for the FBI. Minnesota isn't Nathan's jurisdiction but it is the district for an ex-lover of his who is called in to work the case. To further complicate matters, Margaret is considered a suspect when it's found she stands to inherit several valuable parcels of land. But then another will surfaces and when the two versions are compared, discrepancies rise which cast new light on an old buried scandal. In a final confrontation during a raging blizzard, Margaret is forced to defend her family and her lover against a murderer no one suspected. And that's when she and Nathan discover how strong their bond truly is - and easily it might be severed.