John McMahon is the author of THE GOOD DETECTIVE and THE EVIL MEN DO, both featuring Georgia detective P.T. Marsh.


The New York Times Book Review called McMahon “one of those rare writers who seems to have sprung out of nowhere” and whose debut novel is “pretty much perfect.”

In his role as an ad agency creative director, he has won a Gold Clio for his work on Fiat, and he’s written a Super Bowl spot for Alfa Romeo.


He currently lives in Southern California with his family and two rescue animals.

His next book, A GOOD KILL, will hit shelves 6/15/21. 


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© 2018 by John McMahon