J. F. Kirwan
According to the bio on his website: "J. F. Kirwan is an insomniac who writes thrillers in the dead of night. He is also a psychologist, and has drawn upon this expertise, including being taught by a professor who examined serial killers for Scotland Yard, to pen the crime thriller The Dead Tell Lies for Bloodhound Books. He wanted to shed light not only on the darkness of serial killers, but of those who track them down, who must inevitably step inside the serial killer’s worldview, and may not come out clean or whole afterwards.
He is also the author of the Nadia Laksheva thriller series for HarperCollins (66 Metres, 37 Hours and 88 North) for which he has drawn upon his experience as a diving instructor and former martial artist. His favourite authors include Lee Child, David Baldacci and Jo Nesbo. He is married, and has a daughter and a new grandson, and lives between Paris and London."