John Callahan 
Be Myself [EPUB ebook] 
A Novel

A wayward yacht came crashing into his secluded dock. Thomas Griffin, a retired tough and gritty New York City Homicide Detective, is faced with a challenging new mystery. His chosen new life is cast aside to prevent a local sheriff from arresting the wrong person.
Many entanglements along the way make this case far more engaging than Thomas could expect. Throughout his search for the killer Thomas moves forward in many directions before he is able to identify the motive for the murders.