Latent Lives — Larry Parr

The first book in the John Stauber and Linda Lavaque Murder Mystery Series. Something went terribly wrong that night in Duluth, Minnesota. The call came at 3:12 in the morning: The Mayor, her husband and son found brutally murdered in their lakeside mansion. The police have no motive that makes any sense. The daughter of the murdered family was begging for his help. But he wasn't a cop anymore and this was strictly police business. Besides, as a recent mental patient he was in no shape to help anyone, not even himself.