The Dead of Winter - Lydia Barnwell Mysteries, #1

Newly appointed Allegheny County detective Lydia Barnwell is assigned to investigate a seemingly accidental death, but soon realizes there is more to the case than meets the eye. The unidentified body of a young man has been found dumped under a bridge, buried beneath snow and debris. When the medical examiner determines he was murdered, Barnwell is faced with her first major case, but some in the department doubt her abilities.
To prove herself, she dives into the investigation, but her pursuit leads to a dead end. In her search for the truth, she uncovers a web of lies, deception, and even another murder. To solve both killings, Barnwell must retrace her steps and confront the face she missed a crucial clue. A police procedural from the author of the Chief Novak series.