"D.L. Mark spent more than fifteen years as a journalist, including seven years as a crime reporter with the Yorkshire Post. His writing is heavily influenced by the court cases he covered: the jaded police officers; incompetent investigators; the inertia of the justice system and the grief of those touched by tragedy. He writes psychological suspense thrillers and historical novels, plus the DS McAvoy series (as David Mark). Follow D.L. Mark at @davidmarkwriter and www.davidmarkwriter.co.uk"