A Killing Rain by Faye Snowden

After former homicide Raven Burns returns to Byrd's Landing, Louisiana to begin a new life, she soon finds herself trapped by the old one when her nephew is kidnapped by a ruthless serial killer, and her foster brother becomes the main suspect.

To make matters worse, she is being pursued by two men- one who wants to redeem her soul for the murder Raven felt she had no choice but to commit, and another who wants to lock her away forever.