JM
John McMahon
Author · 9 books
John McMahon is a writer and advertising filmmaker. He produced award-winning commercials for Fiat and Alfa Romeo. As an author, he has written novels featuring the investigator P. T. Marsh.
Author · 9 books
John McMahon is a writer and advertising filmmaker. He produced award-winning commercials for Fiat and Alfa Romeo. As an author, he has written novels featuring the investigator P. T. Marsh.