David 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 defeatist and jaded police officers; the competent and incompetent investigators; the inertia of the justice system and the sheer raw grief of those touched by savagery and tragedy. He is the author of the Sunday Times bestselling DS McAvoy series, historical novels, and psychological suspense thrillers, also writing under the name D.M. Mark . Follow David on @davidmarkwriter www.davidmarkwriter.co.

uk David 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 defeatist and jaded police officers; the competent and incompetent investigators; the inertia of the justice system and the sheer raw grief of those touched by savagery and tragedy. He is the author of the Sunday Times bestselling DS McAvoy series, historical novels, and psychological suspense thrillers, also writing under the name D.M. Mark . Follow David on @davidmarkwriter www.davidmarkwriter.co.

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