Janwillem van de Wetering (1931–2008) was born and raised in Rotterdam, but lived most recently in Surry, Maine. He served as a member of the Amsterdam Special Constabulary and was once a Zen Buddhist monk. He is renowned for his detective fiction, including Outsider in Amsterdam, The Corpse on the Dike, The Japanese Corpse, and eleven other books in the Grijpstra and de Gier series.