Mario J Pabon was born in San Juan, Puerto Rico, where he practiced law as a litigating attorney. In 2008, he moved to Tampa, where he presently resides. His first book, Justifiable Evil, has been described as a "page-turning brew of humor, pathos, and suspense" comparable to such epics as Die Hard, Independence Day, and Speed by the Kirkus Review, and as "one of the best (thrillers) I've read" by Veronica Ruggiero, from Readers Favorite.