A Distant Grave by Sarah Stewart Taylor

Suffolk County homicide detective Maggie D'Arcy and her partner, Dave Milich, are in charge of finding the murderer of Irish aid worker Gabriel Treacy, who was killed in the middle of the night on a Long Island beach. The investigation takes Maggie to Ireland and back, delving into Gabriel's childhood and job in order to find a motive and the person who wanted him dead. A Distant Grave is the second book in Maggie D'Arcy mystery series and is a great read-alike for those who enjoy Elly Griffiths and Deborah Crombie.