Northern Lights by Nora Roberts

After his partner in Baltimore is killed in the line of duty, detective Nate Burke takes a job as Chief of Police in a small Alaskan town. He meets Meg, a bush pilot whose father disappeared sixteen years earlier. His body is discovered frozen in the mountains with an ax through his chest. As Nate begins to investigate the murder, a series of crimes begin to happen in town. The killer is still nearby and despite the townspeople's opinions that he is wasting time, Nate uncovers the mystery & arrests a prominent citizen for multiple murders. I was sure I knew the killer throughout the entire book, but once again was surprised by Nora Roberts.