He studied in both UCD and DCU. His first novel "Every
Dead Thing", in which the character Charlie Parker made his debut,
was published in 1999. The sequence continued with "Dark Hollow"
(2002), "The Killing Kind" (2001) and "The White Road" (2002). "Bad
Men" was published 2003 and "Nocturnes" in 2004.
In between novels, John works as a freelance journalist.