The Perfect Suspect (Catherine McLeod Mysteries, No. 2) by Margaret Coel

A new Catherine McLeod mystery from the New York Times bestselling author of the Wind River mysteries. After a candidate for governor is murdered, and his estranged wife is arrested for first-degree homicide, journalist Catherine McLeod receives a call from an anonymous woman claiming she saw the real killer leave the scene of the crime but is afraid to confide in the police. To uncover the truth, Catherine must risk her career-and her life-to find the witness who can identify the candidate's murderer: Detective Ryan Beckman.