Cold River (Book #2 in the Black Falls Series) by Carla Neggers - paperback

Hannah Shay has finally shown the town of Black Falls what she's worth. Her Three Sisters Caf is a success, and she's soon to become a prosecutor. When the caf becomes an epicenter for investigators trying to pierce a violent crime ring that's leaving bloody trails on nearby Cameron Mountain, Hannah suspects a man from her past is involved. Sean Cameron returns to the snowy cold of his Vermont hometown to unmask his father's killer. Sean has the skills and resources to mount his own search, but he must convince the resistant Hannah to cooperate--because the killer is ready to strike again.and closer than anyone ever imagined.