The bones of it - Kelly Creighton

A psychological crime thriller set in present day County Down. Twenty-two-year-old Scott McAuley, son of ex-paramilitary Duke McAuley, pens diary entries. When Scott is ousted from his politics degree course for joyriding, he returns home to live with Duke for the first time in his memory. When Scott was a baby, Duke was imprisoned for the murders of two young Catholic men, and Scott's grandmother, Isla, became his guardian. Scott finds it difficult living with Duke now, and even more so when he starts getting paranoid that Duke is secretly seeing his ex-girlfriend.