Whispers of Murder (Till Death do us Part Book 1)

From New York Times and USA Today best selling mystery author Cheryl Bradshaw:

It was Isabelle Donnelly's wedding day, a moment in time that should have been the happiest in her life, until it ended in her husband Leo's cold-blooded murder. 
As police investigate Leo's mysterious death, Isabelle discovers her husband was not the man he pretended to be. Why had he lied about his past? And why couldn't his killer rest until she shared her husband's fate?